Here is my AddReservation Form code. Notice that I call the Piper.WritePiper() method and pass in the Name and Seat that the user enters. I'm not sure why this isn't working. I'm not getting any errors or anything. I am simply just wanting a user to be able to enter their name and seat that they would like to take on the plane and then update the file. Please tell me what I am doing wrong... Thank you in advance!!
public partial class frmAddReservation : Form
{
public frmAddReservation()
{
InitializeComponent();
}
List<Seating> piperSeating = new List<Seating>();
List<Seating> cessnaSeating = new List<Seating>();
private void frmAddReservation_Load(object sender, EventArgs e)
{
piperSeating = Piper.GetPiperReservations();
cessnaSeating = Cessna.GetCessnaReservations();
}
private void btnShowPiper_Click(object sender, EventArgs e)
{
listFlight.Items.Add("Piper Seating Chart:");
listFlight.Items.Add("");
//loop through all the seats
foreach (Seating plane in piperSeating)
{
// add the name of plane to the listbox
listFlight.Items.Add(plane.Name + " " + plane.Seat);
}
}
private void btnAddPiper_Click(object sender, EventArgs e)
{
string Name;
int Seat;
if (DataValid())
{
Name = txtName.Text;
Seat = Convert.ToInt16(txtSeat.Text);
Piper.WritePiper(Name, Seat);
}
}
private bool DataValid()
{
bool isOK = false;
if (CheckSeat(txtSeat))
{
isOK = true;
}
return isOK;
}
private bool CheckSeat(TextBox tbox)
{
bool isOK = true;
try
{
Convert.ToDouble(tbox.Text);
}
catch
{
isOK = false;
}
return isOK;
}
}
Here is my Piper.cs class:
public static class Piper
{
private const string dir = #"Z:\Desktop\Windows 7 Files\C#.net\Reservations\Reservations\Reservations\";
private const string path = dir + "PiperDat.txt";
public static List<Seating> GetPiperReservations()
{
if (!Directory.Exists(dir))
Directory.CreateDirectory(dir);
StreamReader textIn =
new StreamReader(
new FileStream(path, FileMode.Open, FileAccess.Read));
List<Seating> personList = new List<Seating>();
while (textIn.Peek() != -1)
{
string row = textIn.ReadLine();
string[] columns = row.Split(',');
Seating person = new Seating();
person.Name = columns[0];
person.Seat = Convert.ToInt16(columns[1]);
personList.Add(person);
}
textIn.Close();
return personList;
}
public static void WritePiper(string Name, int Seat)
{
List<Seating> piperSeating = new List<Seating>();
piperSeating = Piper.GetPiperReservations();
StreamWriter textOut =
new StreamWriter(
new FileStream(path, FileMode.Open, FileAccess.Write));
foreach (Seating plane in piperSeating)
{
Name = plane.Name;
Seat = plane.Seat;
textOut.Write(Name + ",");
textOut.WriteLine(Seat);
}
}
}
Look at the WritePiper method.
It just reads the file and then writes it back, without any changes. The values in the parameters are ignored, the parameters are just used as temporary storage for the data when it is written to the file.
You need to include the values in the parameters as an item, either by adding it to the list, or by writing it to the file along with the items in the list.
Example:
Seating person = new Seating();
person.Name = Name;
person.Seat = Seat;
piperSeating.Add(person);
I think the cause of your issue might be having forgotten the closure of the file, in alternative you might force the text to flush with textOut.Flush().
Try adding textOut.Close() at the end of the WritePiper(...) method.
Related
I am currently making a fitness class booking system for some study I am doing so please bare with me.
I have done most of the code but I am having this strange issue with my 2nd radio button for selecting what class you want.
I have set up my code so a message box appears if the Member ID you have entered is already registered to the fitness class you have selected. For my RadioButton1 (rbCardioClass) and RadioButton2 (rbPilatesClass), the error message box works great and works as it should. But my RadioButton2 (rbSpinClass) will make the error message box appear everytime, even if the MemberID is not associated to the 'Spin Class'.
I have tried different uses of if statements, different radio buttons etc but can't seem to get it to work the way I want.
If I go to my servicesErrorCheck(string[] description)method and just the temp variable to true all radio buttons save to the database table correctly BUT I then lose my erroring, which makes me thinks it is something to do with the way I have set up the message box, maybe.
Here is a screenshot of the prototype form just for reference. FitnessClassBooking Form
Here is a screenshot of the table while the app is running App Running Fitness Form
Here is the error being thrown with MemberID that has no 'Spin' class associated with it App Running Error
Here is my code in question -
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Configuration;
namespace Membership_Formv2
{
public partial class FitnessClassBooking : Form
{
public FitnessClassBooking()
{
InitializeComponent();
}
private void bMainMenu_Click(object sender, EventArgs e)
{
new MainMenu().Show();
this.Hide();
}
private void fitnessInformationBindingNavigatorSaveItem_Click(object sender, EventArgs e)
{
this.Validate();
this.fitnessInformationBindingSource.EndEdit();
this.tableAdapterManager.UpdateAll(this.databaseDataSet);
}
private void FitnessClassBooking_Load(object sender, EventArgs e)
{
// TODO: This line of code loads data into the 'databaseDataSet.Members' table. You can move, or remove it, as needed.
this.membersTableAdapter.Fill(this.databaseDataSet.Members);
// TODO: This line of code loads data into the 'databaseDataSet.FitnessInformation' table. You can move, or remove it, as needed.
this.fitnessInformationTableAdapter.Fill(this.databaseDataSet.FitnessInformation);
}
private void fitnessInformationDataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
}
private string descriptionfit()
{
string className = "";
if (rbCardioClass.Checked == true)
{
className = "Cardio";
}
else if (rbSpinClass.Checked == true)
{
className = "Spin";
}
else if (rbPilatesClass.Checked == true)
{
className = "Pilates";
}
return className;
}
private string classDescription()
{
string serviceSeletionString = "Class";
if (rbCardioClass.Checked == true)
{
serviceSeletionString = rbCardioClass.Text;
this.Refresh();
}
else if (rbSpinClass.Checked == true)
{
serviceSeletionString = rbSpinClass.Text;
this.Refresh();
}
else if (rbPilatesClass.Checked == true)
{
serviceSeletionString = rbPilatesClass.Text;
this.Refresh();
}
return serviceSeletionString;
}
private bool errorCheckingID()
{
bool statusDB = true;
//Getting row info from MembersTa table
DatabaseDataSet.MembersRow newEntry = databaseDataSet.Members.FindByMemberID(Int32.Parse(textBox3.Text));
//Getting information from BookingTa table
if (newEntry == null)
{
statusDB = false;
return (statusDB);
}
return (statusDB);
}
public bool servicesErrorCheck(string[] description)
{
bool temp = true;
string serviceSeletionString = "";
if (rbCardioClass.Checked == true)
{
serviceSeletionString = rbCardioClass.Text;
this.Refresh();
}
else if (rbSpinClass.Checked == true)
{
serviceSeletionString = rbSpinClass.Text;
this.Refresh();
}
else if (rbPilatesClass.Checked == true)
{
serviceSeletionString = rbPilatesClass.Text;
this.Refresh();
}
for (int t = 0; t < description.Length; t++)
{
if (serviceSeletionString.Contains(description[t].Trim()))
{
temp = false;
break;
}
}
return (temp);
}
private string originalaccesdb()
{
string a = "";
DatabaseDataSet.FitnessInformationRow newRow = databaseDataSet.FitnessInformation.NewFitnessInformationRow();
newRow.Fitness_Booking_ID = databaseDataSet.FitnessInformation.Count + 1;
newRow.Description = descriptionfit();
newRow.MemberID = Int32.Parse(textBox3.Text);
databaseDataSet.FitnessInformation.AddFitnessInformationRow(newRow);
return a;
}
private string[] accessDB()
{
int t = 0;
int temp;
string[] servicesList = { "n", "n", "n" }; //This variable will store the data
//Same code too extract table information
foreach (DataRow r in databaseDataSet.FitnessInformation.Rows)
{
temp = Int32.Parse(r["MemberID"].ToString());
if (temp == Int32.Parse(textBox3.Text))
{
//Store inside the array all the services/description against the ID.
//Note that this array will remain "" for all the elements inside the array
//if no descritopn/services (i.e., record) is found against the input ID
servicesList[t] = r["Description"].ToString();
t = t + 1;
}
}
return (servicesList);
}
private void button1_Click(object sender, EventArgs e)
{
string text = textBox1.Text;
textBox1.Text = "";
int a = Int32.Parse(textBox2.Text);
DatabaseDataSet.MembersRow newID = databaseDataSet.Members.FindByMemberID(Int32.Parse(textBox2.Text));
string booking = "";
int temp;
foreach (DataRow r in databaseDataSet.FitnessInformation.Rows)
{
temp = Int32.Parse(r["MemberID"].ToString());
if (temp == Int32.Parse(textBox2.Text))
{
booking = r["Description"].ToString() + ", " + booking;
}
}
textBox1.Text = "Member ID is: " + (newID.MemberID).ToString() + Environment.NewLine +
"First Name is: " + (newID.First_Name).ToString() + Environment.NewLine +
"Last Name is: " + (newID.Last_Name).ToString() + Environment.NewLine +
"Bookings: " + booking;
}
public void button2_Click(object sender, EventArgs e)
{
bool status1, status2;
string[] description;
//Error control at the outer level for valid ID
status1 = errorCheckingID();
//Proceed only if ID is valid or status1 is true
if (status1)
{
//Retrieve information from the other database. Ideally you want this method to return
//an array containing registered services. This would be an array of strings.
description = accessDB();
//Services error checking
status2 = servicesErrorCheck(description);
//Now this is the code that would call the method to save data ito database
//when status2 and 2 are true
if (status2)
{
//Code for saving into database.
DatabaseDataSet.FitnessInformationRow newRow = databaseDataSet.FitnessInformation.NewFitnessInformationRow();
newRow.Fitness_Booking_ID = databaseDataSet.FitnessInformation.Count + 1;
newRow.Description = classDescription();
newRow.MemberID = Int32.Parse(textBox3.Text);
databaseDataSet.FitnessInformation.AddFitnessInformationRow(newRow);
}
else
{
//Show error that this service is not available
MessageBox.Show("This Class is already assigned to that Member ID");
}
}
else
{
//Error message invalid ID
MessageBox.Show("Invalid ID");
}
}
private void radioButton1_Click(object sender, EventArgs e)
{
}
private void radioButton4_Click(object sender, EventArgs e)
{
}
private void radioButton3_Click(object sender, EventArgs e)
{
}
}
}
I am really not sure why this is happening so I would really appreciate any help.
You are checking each string in descriptions as follows:
serviceSeletionString.Contains(description[t].Trim())
which considering at least one of the strings is just n it will always match Spin.
Quite why you are always returning an array with the blank ones having n, I don't know. Personally I would just use a List<string> and Add each item from the database to it. But that is a separate point.
Either change it to serviceSeletionString == description[t] (don't see why you need Trim()) or just replace the whole foreach loop with description.Contains(serviceSeletionString)
I've been searching for answers everywhere and I can't seem to solve mine. Anyone know a solution for this? I'm getting the following errors:
Line 25: Field 'Champion_Item_List_Downloader.MainForm.championsList' is never assigned to, and will always have its default value null (CS0649)
Line 26: Field 'Champion_Item_List_Downloader.MainForm.rolesList' is never assigned to, and will always have its default value null (CS0649)
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using System.IO;
using System.Net;
using System.ComponentModel;
namespace Champion_Item_List_Downloader
{
/// <summary>
/// Description of MainForm.
/// </summary>
public partial class MainForm : Form
{
const string listFile = "Lists.txt";
private System.Collections.Generic.List<string> championsList;
private System.Collections.Generic.List<string> rolesList;
public MainForm()
{
//
// The InitializeComponent() call is required for Windows Forms designer support.
//
InitializeComponent();
loadList(listFile);
}
public void loadList(string file){
try {
using (StreamReader r = new StreamReader(file))
{
string line;
bool isChamp = false;
while ((line = r.ReadLine()) != null)
{
if (line == #"[Champions]") {
isChamp = true;
}
if(line != #"[Champions]" && line != #"[Types]" && line != "")
{
if(isChamp == true){
championsList.Add(line);
} else {
rolesList.Add(line);
}
}
}
}
} catch (Exception) {
}
}
public void loadStringList(string file, List<string> list){
try {
using (StreamReader r = new StreamReader(file))
{
string line;
while ((line = r.ReadLine()) != null)
{
list.Add(line);
}
}
} catch (Exception) {
}
}
void Btn_DownloadClick(object sender, EventArgs e)
{
WebClient webClient = new WebClient();
progressBar.Maximum = championsList.Count * rolesList.Count;
int count = 0;
progressBar.Value = 0;
string fileName = "";
string url = "";
string path = "";
foreach (string c in championsList)
{
foreach (string r in rolesList)
{
try {
fileName = c + #"_" + r + #"_scrape.json";
url = #"http://www.lolflavor.com/champions/" + c + #"/Recommended/" + fileName;
path = #"Champions\" + c + #"\Recommended\";
Directory.CreateDirectory(path);
webClient.DownloadFile(new Uri(url), path + fileName);
count++;
progressBar.Value = count;
} catch (Exception) {
}
}
}
progressBar.Value = progressBar.Maximum;
MessageBox.Show("Download completed!\n" + count.ToString() + " item lists successfully downloaded.");
}
void MainFormLoad(object sender, System.EventArgs e)
{
throw new NotImplementedException();
}
}
}
You have not initialized your lists anywhere.
Try initializing them where they are declared:
private System.Collections.Generic.List<string> championsList = new System.Collections.Generic.List<string>();
private System.Collections.Generic.List<string> rolesList = new System.Collections.Generic.List<string>();
Or within the constructor:
private System.Collections.Generic.List<string> championsList;
private System.Collections.Generic.List<string> rolesList;
public MainForm()
{
//
// The InitializeComponent() call is required for Windows Forms designer support.
//
InitializeComponent();
// loadList uses these lists so they should be initialized before the call to loadList to avoid a NullReferenceException.
championsList = new System.Collections.Generic.List<string>();
rolesList = new System.Collections.Generic.List<string>();
loadList(listFile);
}
Or lazily at the time they are needed:
private System.Collections.Generic.List<string> championsList;
private System.Collections.Generic.List<string> rolesList;
public void loadList(string file){
if (championsList == null) championsList = new System.Collections.Generic.List<string>();
if (rolesList == null) rolesList = new System.Collections.Generic.List<string>();
try {
using (StreamReader r = new StreamReader(file))
{
...
}
} catch (Exception) {
}
}
void Btn_DownloadClick(object sender, EventArgs e)
{
WebClient webClient = new WebClient();
if (championsList == null) championsList = new System.Collections.Generic.List<string>();
if (rolesList == null) rolesList = new System.Collections.Generic.List<string>();
progressBar.Maximum = championsList.Count * rolesList.Count;
int count = 0;
progressBar.Value = 0;
string fileName = "";
string url = "";
string path = "";
foreach (string c in championsList)
{
foreach (string r in rolesList)
{
...
}
}
progressBar.Value = progressBar.Maximum;
MessageBox.Show("Download completed!\n" + count.ToString() + " item lists successfully downloaded.");
}
P.S. because you already have using System.Collections.Generic declared, you could write it more simply as:
private List<string> championsList = new List<string>();
private List<string> rolesList = new List<string>();
There is never a call to championsList = new System.Collections.Generic.List<string>().
Thus it's never initialized
Server 1 Server2 Server Config Screen
I am trying to make a video game server manager and I have run into an issue. I want the user to be able to have as many servers as they would like. However I cannot figure out through google searching and just regular messing around how to store the information that the user selects to become associated with the Server they create in the list. Basically when you make Server1 it takes the info you selected from the boxes on the config screen and uses them on the server selection page. But, when you make Server2, the configuration overwrites Server1's configuration. I know my code isn't even setup to be able to do this but I would appreciate a push in the right direction as to which type of code I should use.
Tl:dr I want config options to be associated with ServerX in the server list and each server should have unique settings.
public partial class Form1 : Form
{
//Variables
string srvName;
string mapSelect;
string difSelect;
public Form1()
{
InitializeComponent();
this.srvList.SelectedIndexChanged += new System.EventHandler(this.srvList_SelectedIndexChanged);
}
private void srvList_SelectedIndexChanged(object sender, EventArgs e)
{
if(srvList.SelectedIndex == -1)
{
dltButton.Visible = false;
}
else
{
dltButton.Visible = true;
}
//Text being displayed to the left of the server listbox
mapLabel1.Text = mapSelect;
difLabel1.Text = difSelect;
}
private void crtButton_Click(object sender, EventArgs e)
{
//Add srvName to srvList
srvName = namBox1.Text;
srvList.Items.Add(srvName);
//Selections
mapSelect = mapBox1.Text;
difSelect = difBox1.Text;
//Write to config file
string[] lines = { mapSelect, difSelect };
System.IO.File.WriteAllLines(#"C:\Users\mlynch\Desktop\Test\Test.txt", lines);
//Clear newPanel form
namBox1.Text = String.Empty;
mapBox1.SelectedIndex = -1;
difBox1.SelectedIndex = -1;
//Return to srvList
newPanel.Visible = false;
}
}
You mentioned in a recent comment that you had tried saving to a .txt file but it overwrote it anytime you tried to make an additional one. If you wanted to continue with your .txt approach, you could simply set a global integer variable and append it to each file you save.
//Variables
string srvName;
string mapSelect;
string difSelect;
int serverNumber = 0;
...
serverNumber++;
string filepath = Path.Combine(#"C:\Users\mlynch\Desktop\Test\Test", serverNumber.ToString(), ".txt");
System.IO.File.WriteAllLines(filepath, lines);
I think below source code will give you some idea about the direction. Let us start with some initializations:
public Form1()
{
InitializeComponent();
this.srvList.SelectedIndexChanged += new System.EventHandler(this.srvList_SelectedIndexChanged);
mapBox1.Items.Add("Germany");
mapBox1.Items.Add("Russia");
difBox1.Items.Add("Easy");
difBox1.Items.Add("Difficult");
}
This is the event handler of the "Create Server" button. It takes server parameters from the screen and writes to a file named as the server.
private void crtButton_Click(object sender, EventArgs e)
{
//Add srvName to srvList
srvName = namBox1.Text;
srvList.Items.Add(srvName);
//Selections
mapSelect = mapBox1.Text;
difSelect = difBox1.Text;
//Write to config file
string path = #"C:\Test\" + srvName + ".txt";
StreamWriter sw = new StreamWriter(path);
sw.WriteLine(mapSelect);
sw.WriteLine(difSelect);
sw.Flush();
sw.Close();
//Clear newPanel form
namBox1.Text = String.Empty;
mapBox1.SelectedIndex = -1;
difBox1.SelectedIndex = -1;
//Return to srvList
//newPanel.Visible = false;
}
And finally list box event handler is below. Method reads the server parameters from file and displays on the screen.
private void srvList_SelectedIndexChanged(object sender, EventArgs e)
{
if (srvList.SelectedIndex == -1)
{
dltButton.Visible = false;
}
else
{
dltButton.Visible = true;
}
string path = #"C:\Test\" + srvList.SelectedItem + ".txt";
StreamReader sr = new StreamReader(path);
//Text being displayed to the left of the server listbox
mapLabel1.Text = sr.ReadLine(); // mapSelect;
difLabel1.Text = sr.ReadLine(); // difSelect;
}
Please feel free to ask any questions you have.
I ended up figuring out the issue. Basically I ended up deciding on a write to a txt file and then read from it to display the contents of the file in the server select menu. I also added a delete button so you can delete the servers that you created. it does not have full functionality yet but it is there. So here it what I ended up with and it works perfectly. Thank you all for trying to help.
public partial class Form1 : Form
{
//Variables
string srvName;
string mapSelect;
string mapFile;
string difSelect;
string difFile;
int maxPlayers;
string plrSelect;
string plrFile;
string finalFile;
string basepath = System.IO.Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
string fileName = "config.txt";
public Form1()
{
InitializeComponent();
this.srvList.SelectedIndexChanged += new System.EventHandler(this.srvList_SelectedIndexChanged);
}
private void srvList_SelectedIndexChanged(object sender, EventArgs e)
{
//Read Server Selection
string srvSelect = srvList.GetItemText(srvList.SelectedItem);
string srvOut = System.IO.Path.Combine(basepath, srvSelect, fileName);
mapFile = File.ReadLines(srvOut).Skip(1).Take(1).First();
difFile = File.ReadLines(srvOut).Skip(2).Take(1).First();
plrFile = File.ReadLines(srvOut).Skip(3).Take(1).First();
//Display Server Selection
if (srvList.SelectedIndex == -1)
{
dltButton.Visible = false;
}
else
{
dltButton.Visible = true;
mapLabel1.Text = mapFile;
difLabel1.Text = difFile;
plrLabel1.Text = plrFile;
}
private void crtButton_Click(object sender, EventArgs e)
{
//Set Server Name
srvName = namBox1.Text;
string finalpath = System.IO.Path.Combine(basepath, srvName);
//Check if server name is taken
if (System.IO.Directory.Exists(finalpath))
{
MessageBox.Show("A Server by this name already exists");
}
else
{
//Add Server to the Server List
srvList.Items.Add(srvName);
//Server Configuration
mapSelect = mapBox1.Text;
difSelect = difBox1.Text;
maxPlayers = maxBar1.Value * 2;
plrSelect = "" + maxPlayers;
//Clear New Server Form
namBox1.Text = String.Empty;
mapBox1.SelectedIndex = -1;
difBox1.SelectedIndex = -1;
//Create the Server File
Directory.CreateDirectory(finalpath);
finalFile = System.IO.Path.Combine(finalpath, fileName);
File.Create(finalFile).Close();
//Write to config file
string[] lines = { srvName, mapSelect, difSelect, plrSelect };
System.IO.File.WriteAllLines(#finalFile, lines);
//Return to srvList
newPanel.Visible = false;
}
}
}
I am currently working on a small DB project in which I have tried implementing a browser for image so that they can be saved for each player accordingly.
I am particularly struggling with wring the path of the image to a string, and the storing that string into the arraylist which will then be used to load the file by using the path stored in that arraylist. As you see in the code I have tried to assign the OpenFd.FileName to a string called pathToImage but it doesn't work, the string remains empty after a quick debug check using MessageBox.Show(pathToImage)
Can anyone help me?
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Collections;
using System.Text.RegularExpressions;
using System.Runtime.Serialization.Formatters.Binary;
namespace Assignment1_Template2
{
public partial class Form1 : Form
{
// =======================The data Structure ===========================
// ========Uses [SERIALIZABLE] to allow simple loading/saving ==========
[Serializable]
private struct myStruct
{ // The "constructor". Fills data structure with default values
public myStruct(int playerId)
{
uniquePlayerId = new int[playerId];
playerIgName = "";
contactStreet = "";
contactTown = "";
contactPostcode = "";
contactEmail = "";
contactTelephone = "";
imagePath = "";
for (int i = 0; i < playerId; ++i) uniquePlayerId[i] = 0;
}
// The data types of the struct
public int[] uniquePlayerId;
public string playerIgName;
public string contactStreet;
public string contactTown;
public string contactPostcode;
public string contactEmail;
public string contactTelephone;
public string imagePath;
}
// ================== End of data Structure definition ===================
// =======================================================================
// ================ Global Variables used in the Program =================
private ArrayList dataList; // This is the main data collection
private int currentEntryShown = 0; // current myStruct on display
private int numberOfEntries = 0; // total number of myStructs
private string filename = "C:\\test.dat"; // path of the file being read in
public string pathToImage = "";
public string pathToImagePlaceholder = "";
// =======================================================================
// ================== STARTING POINT FOR THE PROGRAM =====================
public Form1()
{
// Brings up the window.
InitializeComponent();
// Create the ArrayList
dataList = new ArrayList();
// Call methods implemented below
LoadData();
ShowData();
UpdatePrevNextBtnStatus();
}
// =========================================================================
// =================== END OF STARTING POINT FOR PROGRAM ===================
// ========= All further events are now triggered by user actions ==========
// =========================================================================
// =========================================================================
// ========================= BUTTON ACTION HANDLERS ========================
// =========================================================================
private void showPreviousBtn_Click(object sender, EventArgs e)
{
--currentEntryShown;
ShowData();
UpdatePrevNextBtnStatus();
}
private void showNextBtn_Click(object sender, EventArgs e)
{
++currentEntryShown;
if (currentEntryShown != dataList.Count)
{
ShowData();
}
UpdatePrevNextBtnStatus();
}
private void addNewPlayerBtn_Click(object sender, EventArgs e)
{
++numberOfEntries; // "Add" clicked: we need to create one more entry
currentEntryShown = numberOfEntries - 1; // scroll to an empty record at the end
// Create a new data structure, its constructor will fill it with default values
myStruct aNewStruct = new myStruct(5);
dataList.Add(aNewStruct); // add the frshly created struct to the ArrayList
ShowData(); // display
addNewPlayerBtn.Enabled = true; // can't do this again before saving
UpdatePrevNextBtnStatus();
}
private void SaveBtn_Click(object sender, EventArgs e)
{
SaveData(); // Call the Save() method implemented below
addNewPlayerBtn.Enabled = true; // After saving we can add another new record
UpdatePrevNextBtnStatus(); // Set 'Next' and 'Previous' button appearance
}
// =========================================================================
// =========================================================================
// ================ HANDLE DATA CHANGES BY USER ============================
// =========================================================================
// If the text box string is changed by the user, update
private void playerIdBox_TextChanged(object sender, EventArgs e)
{
myStruct aNewStruct = new myStruct(5);
aNewStruct = (myStruct)dataList[currentEntryShown];
aNewStruct.uniquePlayerId[0] = Convert.ToInt32(playerIdBox.Text);
dataList[currentEntryShown] = aNewStruct;
}
private void playerIgNameBox_TextChanged(object sender, EventArgs e)
{
myStruct aNewStruct = new myStruct(5);
aNewStruct = (myStruct)dataList[currentEntryShown];
aNewStruct.playerIgName = playerIgNameBox.Text;
dataList[currentEntryShown] = aNewStruct;
}
private void contactStreetBox_TextChanged(object sender, EventArgs e)
{
myStruct aNewStruct = new myStruct(5);
aNewStruct = (myStruct)dataList[currentEntryShown];
aNewStruct.contactStreet = contactStreetBox.Text;
dataList[currentEntryShown] = aNewStruct;
}
private void contactTownBox_TextChanged(object sender, EventArgs e)
{
myStruct aNewStruct = new myStruct(5);
aNewStruct = (myStruct)dataList[currentEntryShown];
aNewStruct.contactTown = contactTownBox.Text;
dataList[currentEntryShown] = aNewStruct;
}
private void contactPostcodeBox_TextChanged(object sender, EventArgs e)
{
myStruct aNewStruct = new myStruct(5);
aNewStruct = (myStruct)dataList[currentEntryShown];
aNewStruct.contactPostcode = contactPostcodeBox.Text;
dataList[currentEntryShown] = aNewStruct;
}
private void contactEmailBox_TextChanged(object sender, EventArgs e)
{
myStruct aNewStruct = new myStruct(5);
aNewStruct = (myStruct)dataList[currentEntryShown];
aNewStruct.contactEmail = contactEmailBox.Text;
dataList[currentEntryShown] = aNewStruct;
}
private void contactTelephoneBox_TextChanged(object sender, EventArgs e)
{
myStruct aNewStruct = new myStruct(5);
aNewStruct = (myStruct)dataList[currentEntryShown];
aNewStruct.contactTelephone = contactTelephoneBox.Text;
dataList[currentEntryShown] = aNewStruct;
}
// =========================================================================
// ================= HELPER METHODS FOR DISPLAYING DATA ====================
// =========================================================================
private void ShowData()
{
playerIdBox.Text = ((myStruct)dataList[currentEntryShown]).uniquePlayerId[0].ToString();
playerIgNameBox.Text = ((myStruct)dataList[currentEntryShown]).playerIgName;
contactStreetBox.Text = "" + ((myStruct)dataList[currentEntryShown]).contactStreet;
contactTownBox.Text = "" + ((myStruct)dataList[currentEntryShown]).contactTown;
contactPostcodeBox.Text = "" + ((myStruct)dataList[currentEntryShown]).contactPostcode;
contactEmailBox.Text = "" + ((myStruct)dataList[currentEntryShown]).contactEmail;
contactTelephoneBox.Text = "" + ((myStruct)dataList[currentEntryShown]).contactTelephone;
pathToImagePlaceholder = "" + ((myStruct)dataList[currentEntryShown]).imagePath;
MessageBox.Show(pathToImagePlaceholder);
try
{
playerPictureBox.Image = Image.FromFile(pathToImagePlaceholder);
}
catch
{
return;
}
}
private void UpdatePrevNextBtnStatus()
{
if (currentEntryShown > 0) showPreviousBtn.Enabled = true;
else showPreviousBtn.Enabled = false;
if (currentEntryShown < (numberOfEntries - 1)) showNextBtn.Enabled = true;
else showNextBtn.Enabled = false;
label1.Text = "Player ID";
label3.Text = (currentEntryShown + 1) + " / " + numberOfEntries;
}
// =========================================================================
// =========================================================================
// =============== HELPER METHODS FOR LOADING AND SAVING ===================
// =========================================================================
private void SaveData()
{
try
{
FileStream fs = new FileStream(filename, FileMode.Create, FileAccess.Write);
try
{
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(fs, dataList);
MessageBox.Show("Data saved to " + filename, "FILE SAVE OK", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch
{
MessageBox.Show("Could not serialise to " + filename,
"FILE SAVING PROBLEM", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
fs.Close();
}
catch
{
MessageBox.Show("Could not open " + filename +
" for saving.\nNo access rights to the folder, perhaps?",
"FILE SAVING PROBLEM", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
private void LoadData()
{
try
{
FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
try
{
BinaryFormatter bf = new BinaryFormatter();
dataList = (ArrayList)bf.Deserialize(fs);
currentEntryShown = 0;
numberOfEntries = dataList.Count;
}
catch
{
MessageBox.Show("Could not de-serialise from " + filename +
"\nThis usually happens after you changed the data structure.\nDelete the data file and re-start program\n\nClick 'OK' to close the program",
"FILE LOADING PROBLEM", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
fs.Close(); // close file
Environment.Exit(1); // crash out
}
fs.Close();
}
catch
{
if (MessageBox.Show("Could not open " + filename + " for loading.\nFile might not exist yet.\n(This would be normal at first start)\n\nCreate a default data file?",
"FILE LOADING PROBLEM", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation) == DialogResult.Yes)
{
// No data exist yet. Create a first entry
myStruct aNewStruct = new myStruct(5);
dataList.Add(aNewStruct);
numberOfEntries = 1;
currentEntryShown = 0;
}
}
}
// =========================================================================
// =========================================================================
// ====================== HELPER METHODS FOR SORTING =======================
// =========================================================================
// This function will sort by player name by using the PlayerNameComparer below
private void sortToolStripMenuItem_Click(object sender, EventArgs e)
{
dataList.Sort(new PlayerNameComparer());
currentEntryShown = 0;
ShowData();
UpdatePrevNextBtnStatus();
}
// Overriding (= overwriting) the default IComparer
public class PlayerNameComparer : IComparer
{
public int Compare(object x, object y)
{
return ((myStruct)x).playerIgName.CompareTo(((myStruct)y).playerIgName);
}
}
private void saveButton_Click(object sender, EventArgs e)
{
SaveData();
UpdatePrevNextBtnStatus();
}
private void deletePlayerBtn_Click(object sender, EventArgs e)
{
dataList.RemoveAt(currentEntryShown);
SaveData();
if (currentEntryShown != dataList.Count)
{
ShowData();
}
UpdatePrevNextBtnStatus();
}
private void searchToolStripMenuItem_Click(object sender, EventArgs e)
{
Form searchForm = new Form1();
searchForm.Show();
}
private void uploadButton_Click(object sender, EventArgs e)
{
try
{
OpenFileDialog OpenFd = new OpenFileDialog();
pathToImage = OpenFd.FileName;
OpenFd.Filter = "Images only. |*.jpeg; *.jpg; *.png; *.gif;";
DialogResult rd = OpenFd.ShowDialog();
if (rd == System.Windows.Forms.DialogResult.OK)
{
playerPictureBox.Image = Image.FromFile(OpenFd.FileName);
myStruct aNewStruct = new myStruct(5);
aNewStruct = (myStruct)dataList[currentEntryShown];
aNewStruct.imagePath = pathToImage;
dataList[currentEntryShown] = aNewStruct;
// save the FileName to a string.
}
MessageBox.Show(pathToImage);
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message);
}
}
}
}
Set pathToImage after the ShowDIalog has completed, not before:
DialogResult rd = OpenFd.ShowDialog();
if (rd == System.Windows.Forms.DialogResult.OK)
{
pathToImage = OpenFd.FileName; ...
I could be wrong because reading all that wall of code requires too much time, but your last method should be
private void uploadButton_Click(object sender, EventArgs e)
{
try
{
OpenFileDialog OpenFd = new OpenFileDialog();
// REMOVED HERE .... pathToImage = OpenFd.FileName
OpenFd.Filter = "Images only. |*.jpeg; *.jpg; *.png; *.gif;";
DialogResult rd = OpenFd.ShowDialog();
if (rd == System.Windows.Forms.DialogResult.OK)
{
playerPictureBox.Image = Image.FromFile(OpenFd.FileName);
myStruct aNewStruct = new myStruct(5);
aNewStruct = (myStruct)dataList[currentEntryShown];
aNewStruct.imagePath = OpenFd.FileName; // Changed this line...
dataList[currentEntryShown] = aNewStruct;
}
// no much sense this here if the user cancel the dialogbox
// MessageBox.Show(pathToImage);
}
I have a Windows Form application. What this application does, is let the user browse to a drive/folder they wish to have files renamed for. This app renames files that have "invalid" characters (that are defined in a RegEx pattern).
What i want to happen here is, after the user decides which drive/folder to use, a datagridview pops up showing the user files in the drive/folder that are going to be renamed. The user then clicks a button to actually rename the files. I'm having trouble though getting the code for my button in DriveRecursion_Results.cs set up. Can anybody help me? Code plz -- i'm extremely new to this and need syntax to look at to understand.
Form1 code:
namespace FileMigration2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
FolderSelect("Please select:");
}
public string FolderSelect(string txtPrompt)
{
//Value to be returned
string result = string.Empty;
//Now, we want to use the path information to population our folder selection initial location
string initialPathDir = (#"C:\");
System.IO.DirectoryInfo info = new System.IO.DirectoryInfo(initialPathDir);
FolderBrowserDialog FolderSelect = new FolderBrowserDialog();
FolderSelect.SelectedPath = info.FullName;
FolderSelect.Description = txtPrompt;
FolderSelect.ShowNewFolderButton = true;
if (FolderSelect.ShowDialog() == DialogResult.OK)
{
string retPath = FolderSelect.SelectedPath;
if (retPath == null)
{
retPath = "";
}
DriveRecursion_Results dw = new DriveRecursion_Results();
dw.Show();
dw.DriveRecursion(retPath);
result = retPath;
}
return result;
}
}
}
DriveRecursion_Results.cs code: [the button is in here that i need help with!]
namespace FileMigration2
{
public partial class DriveRecursion_Results : Form
{
public DriveRecursion_Results()
{
InitializeComponent();
}
private void listView1_SelectedIndexChanged(object sender, EventArgs e)
{
}
public void DriveRecursion(string retPath)
{
//recurse through files. Let user press 'ok' to move onto next step
// string[] files = Directory.GetFiles(retPath, "*.*", SearchOption.AllDirectories);
string pattern = " *[\\~#%&*{}/<>?|\"-]+ *";
//string replacement = "";
Regex regEx = new Regex(pattern);
string[] fileDrive = Directory.GetFiles(retPath, "*.*", SearchOption.AllDirectories);
List<string> filePath = new List<string>();
dataGridView1.Rows.Clear();
try
{
foreach (string fileNames in fileDrive)
{
if (regEx.IsMatch(fileNames))
{
string fileNameOnly = Path.GetFileName(fileNames);
string pathOnly = Path.GetDirectoryName(fileNames);
DataGridViewRow dgr = new DataGridViewRow();
filePath.Add(fileNames);
dgr.CreateCells(dataGridView1);
dgr.Cells[0].Value = pathOnly;
dgr.Cells[1].Value = fileNameOnly;
dataGridView1.Rows.Add(dgr);
filePath.Add(fileNames);
}
else
{
DataGridViewRow dgr2 = new DataGridViewRow();
dgr2.Cells[0].Value = "No Files To Clean Up";
dgr2.Cells[1].Value = "";
}
}
}
catch (Exception e)
{
StreamWriter sw = new StreamWriter(retPath + "ErrorLog.txt");
sw.Write(e);
}
}
private void button1_Click(object sender, EventArgs e)
{
//What do i type in here to call my FileCleanUp method???
}
}
SanitizeFileNames.cs code:
namespace FileMigration2
{
public class SanitizeFileNames
{
public static void FileCleanup(List<string>filePath)
{
string regPattern = "*[\\~#%&*{}/<>?|\"-]+*";
string replacement = "";
Regex regExPattern = new Regex(regPattern);
foreach (string files2 in filePath)
{
try
{
string filenameOnly = Path.GetFileName(files2);
string pathOnly = Path.GetDirectoryName(files2);
string sanitizedFileName = regExPattern.Replace(filenameOnly, replacement);
string sanitized = Path.Combine(pathOnly, sanitizedFileName);
//write to streamwriter
System.IO.File.Move(files2, sanitized);
}
catch (Exception ex)
{
//write to streamwriter
}
}
}
}
}
}
Any help is appreciated!
Thanks :)
Put
public partial class DriveRecursion_Results : Form {
List<string> filePath;
and in driveRecursion method, just use
filePath = new List<string>();
and in the action button method, why don't you do
if(filePath != null)
SanitizeFileNames.FileCleanup(filePath);
You call filePath.Add twice ?
Your 'else' is in the wrong place too.
What is dgr2?