How I can replay a video in Windows Media control? I try to do it by this way? but it doesn't work
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, System.EventArgs e)
{
//mediaPlayer.currentPlaylist = mediaPlayer.mediaCollection.getByName("Dastan");
//mediaPlayer.URL = #"C:\Documents and Settings\Администратор\Мои документы\Моя музыка\Мои списки воспроизведения\Dastan.wpl";
//mediaPlayer.uiMode = "none";
PlayFile(#"C:\Documents and Settings\Администратор\Мои документы\Моя музыка\Мои списки воспроизведения\Dastan.wpl");
}
private void mediaPlayer_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e)
{
if ((WMPLib.WMPPlayState)e.newState == WMPPlayState.wmppsPlaying)
{
mediaPlayer.fullScreen = true;
mediaPlayer.Ctlenabled = false;
}
else if ((WMPLib.WMPPlayState)e.newState == WMPPlayState.wmppsMediaEnded)
{
Form1_Load(null, null);
}
}
private void PlayFile(String url)
{
mediaPlayer.URL = url;
mediaPlayer.Ctlcontrols.play();
}
Any ideas?
mediaPlayer.settings.setMode("loop", true);
This code snippet does all job. Thanks for answers..
Try setting mediaPlayer.Ctlcontrols.currentPosition to 0.
private void mediaPlayer_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e)
{
if ((WMPLib.WMPPlayState)e.newState == WMPPlayState.wmppsPlaying)
{
mediaPlayer.fullScreen = true;
mediaPlayer.Ctlenabled = false;
}
else if ((WMPLib.WMPPlayState)e.newState == WMPPlayState.wmppsMediaEnded)
{
mediaPlayer.Ctlcontrols.currentPosition = 0;
mediaPlayer.Ctlcontrols.play();
}
}
Related
i have a problem where when i try to add a value trough the click_button event, the value will remain the same, could someone help me out with this?
int parallelgroepnummer = 0;
protected void Page_Load(object sender, EventArgs e)
{
CheckBox1.Checked = false;
checkparallel = false;
}
protected void Button1_Click(object sender, EventArgs e)
{
if (checkparallel == true)
{
{
parallelgroepen.Add(parallelgroepnummer, "test");
parallelgroepnummer = parallelgroepnummer + 1;
ListBox1.Items.Add("parallele groep " + parallelgroepnummer);
}
}
else
{
ListBox1.Items.Add("notparallel");
}
}
protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
{
if (checkparallel == false)
{
checkparallel = true;
}
else
{
checkparallel = false;
}
}
the answer always returns 1 here.
int parallelgroepnummer = 0;
change in:
private static int parallelgroepnummer = 0;
I trying to do an inteface to monitoring the Serial Port. I am using Visual forms. So, I had created a combobox to select the PortCOM, a TextBox to send the data to Serial Port and a TextBoxReceber to receive the Serial Data. I trying print the data received in the TextBoxReceber, I'm using the AppendText but I haven't sucess. Anybody can help me?
My Form1.cs is:
namespace ConsoleESP
{
public partial class Form1 : Form
{
string RxString = "";
public Form1()
{
InitializeComponent();
timerCOM.Enabled = true;
atualizaCOMs();
}
private void atualizaCOMs()
{
int i = 0;
bool quantDif = false;
if (comboBox1.Items.Count == SerialPort.GetPortNames().Length)
{
foreach (string s in SerialPort.GetPortNames())
{
if (comboBox1.Items[i++].Equals(s) == false)
{
quantDif = true;
}
}
}
else quantDif = true;
if (quantDif == false) return;
comboBox1.Items.Clear();
foreach(string s in SerialPort.GetPortNames())
{
comboBox1.Items.Add(s);
}
comboBox1.SelectedIndex = 0;
}
private void timerCOM_Tick(object sender, EventArgs e)
{
atualizaCOMs();
}
private void btConnect_Click(object sender, EventArgs e)
{
if(serialPort1.IsOpen == false)
{
try
{
serialPort1.PortName = comboBox1.Items[comboBox1.SelectedIndex].ToString();
serialPort1.Open();
}
catch
{
return;
}
if (serialPort1.IsOpen)
{
btConnect.Text = "Desconectar";
comboBox1.Enabled = false;
}
}
else
{
try
{
serialPort1.Close();
comboBox1.Enabled = true;
btConnect.Text = "Conectar";
}
catch
{
return;
}
}
}
private void Form1_FormClosed(object sender, FormClosedEventArgs e)
{
if (serialPort1.IsOpen == true) serialPort1.Close();
}
private void btEnviar_Click(object sender, EventArgs e)
{
if (serialPort1.IsOpen == true)
serialPort1.Write(textBoxEnviar.Text);
}
private delegate void RefreshTextBox();
private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
RxString = serialPort1.ReadExisting();
this.Invoke(new EventHandler(TrataDadoRecebido));
}
private void TrataDadoRecebido(object sender, EventArgs e)
{
textBoxReceber.AppendText(RxString);
}
}
}
I have 4 panels each of one has their own TextBoxes, Buttons, and DataGridView. My problem is only two panels are showing the other is none. When I click the 1st Button I want to show the panel1 and hide the other panels. And when I click the 2nd Button I want to hide the panel1 and the other panel. How can I do it? Can somebody help me with my problem? It this possible to happen?
private void btnItems_Click(object sender, EventArgs e)
{
if (pnlItems.Visible != true)
{
pnlItems.Visible = true;
pnlCustomer.Visible = false;
pnlPOS.Visible = false;
pnlDelivery.Visible = false;
}
}
private void btnCustomers_Click(object sender, EventArgs e)
{
if (pnlCustomer.Visible != true)
{
pnlCustomer.Visible = true;
pnlItems.Visible = false;
pnlPOS.Visible = false;
pnlDelivery.Visible = false;
}
}
private void btnPOS_Click(object sender, EventArgs e)
{
if (pnlPOS.Visible != true)
{
pnlPOS.Visible = true;
pnlCustomer.Visible = false;
pnlItems.Visible = false;
}
}
private void btnDelivery_Click(object sender, EventArgs e)
{
if (pnlDelivery.Visible != true)
{
pnlDelivery.Visible = true;
pnlPOS.Visible = false;
pnlCustomer.Visible = false;
pnlItems.Visible = false;
}
}
private void frmMain_Load(object sender, EventArgs e)
{
pnlItems.Visible = true;
pnlCustomer.Visible = false;
pnlPOS.Visible = false;
pnlDelivery.Visible = false;
}
Let's extract a method:
private void MakePanelVisisble(Panel panel) {
Panel[] panels = new Panel[] {
pnlItems, pnlCustomer, pnlPOS, pnlDelivery,
};
foreach (var p in panels)
p.Visible = (p == panel);
}
Then
private void btnItems_Click(object sender, EventArgs e) {
MakePanelVisisble(pnlItems);
}
private void btnCustomers_Click(object sender, EventArgs e) {
MakePanelVisisble(pnlCustomer);
}
...
private void frmMain_Load(object sender, EventArgs e) {
MakePanelVisisble(pnlItems);
}
Just Give your Panels Tags 1,2,3,4;
the write a method like this:
private void ShowPanel(int id)
{
var panels = myform.Controls.OfType<Panel>();
foreach(Panel p in panels)
p.Visible = (int)p.Tag == id)
}
Then in your buttons use it like:
private void btnPOS_Click(object sender, EventArgs e)
{
ShowPanel(2);
}
This question already has answers here:
What is a NullReferenceException, and how do I fix it?
(27 answers)
Closed 4 years ago.
I am trying to get read data from rs 485 communication interface and write in the textbox but i am not getting the data from this code. I am working on water measurement and I am beginner in c#. I have seen similar question like this but unable to get the answer. The data format is like this. D014802,+000.042,+000.082,003680,+000805.66,+025.25,0193FA,0.99697,0000,B7C9
Help me out .
public partial class MainForm : Form
{
SerialPort aSerialPort;
InputRegister mobjGlobalform2;
Form3 mobjGlobalform3;
LoginForm AdminLogin = new LoginForm();
//Form6 softwareVersion = new Form6();
bool isUserMode = true;
public MainForm()
{
InitializeComponent();
getAvailablePorts();
}
private void btn_close_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
InputRegister mobjform2 = new InputRegister();
if (checkBox1.Checked)
{
mobjGlobalform2 = mobjform2;
mobjform2.Show();
if(isUserMode==true)
{
mobjform2.groupbox_form2Takuwa.Hide();
mobjform2.Height = 215;
mobjform2.Width = 575;
}
}
else
{
mobjGlobalform2.Close();
//mobjform2.Close();
}
}
private void checkBox2_CheckedChanged(object sender, EventArgs e)
{
Form3 mobjform3 = new Form3();
if (checkBox2.Checked)
{
mobjGlobalform3 = mobjform3;
mobjform3.Show();
if(isUserMode==true)
{
mobjform3.groupbx_form3takuwamode.Hide();
mobjform3.Height = 254;
mobjform3.Width = 407;
}
}
else
{
mobjGlobalform3.Close();
//mobjform2.Close();
}
}
private void timer1_Tick_1(object sender, EventArgs e)
{
label13.Text = DateTime.Now.ToString();
// splitContainer1.Panel2.Controls.Add(label13);
if(AdminLogin.isAdminMode)
{
lbl_AdminLogout.Show();
isUserMode = false;
}
}
private void btn_Clear_Click(object sender, EventArgs e)
{
txtbox_ShowData.Text = String.Empty; // clear the data from text box
}
private void MenuStrip_AdminLogin_Click(object sender, EventArgs e)
{
//Form5 mobjform5 = new Form5();
AdminLogin.Show();
}
private void lbl_AdminLogout_Click(object sender, EventArgs e)
{
AdminLogin.isAdminMode = false;
isUserMode = true;
lbl_AdminLogout.Hide();
MessageBox.Show("Logout Successful");
}
private void btn_SoftwareVersion_Click(object sender, EventArgs e)
{
//softwareVersion.Show();
Form6 Versionform6 = new Form6();
Versionform6.Height = 272;
Versionform6.Width = 507;
Versionform6.Show();
}
private void btn_connectaddress_Click(object sender, EventArgs e)
{
Setting addressconnectform6 = new Setting();
addressconnectform6.Show();
if(isUserMode == true)
{
addressconnectform6.groupbx_takuwaform7.Hide();
addressconnectform6.Height = 257;
addressconnectform6.Width = 657;
}
else
{
addressconnectform6.groupbx_takuwaform7.Show();
}
}
#region combox
// port show in combobox
private void getAvailablePorts()
{
string[] ports = SerialPort.GetPortNames();
cbbx_comport.Items.Clear();
foreach (string comport in ports)
{
cbbx_comport.Items.Add(comport);
}
}
#endregion
private void btn_Connect_Click(object sender, EventArgs e)
{
initializeSensor();
aSerialPort.DataReceived += new SerialDataReceivedEventHandler(Rs485DataReceivedEventHandler);
}
private void Rs485DataReceivedEventHandler(object sender, SerialDataReceivedEventArgs e)
{
SerialPort sData = sender as SerialPort;
string recvData = sData.ReadLine();
this.Invoke((MethodInvoker)delegate { DataReceived(recvData); });
}
private void initializeSensor()
{
aSerialPort = new SerialPort(cbbx_comport.Text);
aSerialPort.BaudRate = 38400;
aSerialPort.Parity = Parity.None;
aSerialPort.StopBits = StopBits.One;
aSerialPort.DataBits = 8;
if (aSerialPort.IsOpen == false)
{
try
{
aSerialPort.Open();
//aSerialPort.WriteLine("c"); //clear
//aSerialPort.WriteLine("o");
}
catch { }
}
}
private void DataReceived(string recvData)
{
txtbx_sensorData.Text = recvData;
}
You are instantiating a local variable, not the field.
Instead of
SerialPort aSerialPort = new SerialPort(cbbx_comport.Text);
Try
aSerialPort = new SerialPort(cbbx_comport.Text);
So, I got kind of stuck over my head while I tried to program something new.
I'm trying to add objectBeer_pluche or objectBeer_Elektro to my OBJberenlijst on the Beren Main form from the details Form, so I can add both instances of 2 classes to the same list.
I'm not even sure this is possible by the way. So, I would like feedback if what I am trying to do is possible to start with. I already figured VOID is not right but I am really clueless here.
This is my main beren.cs form with an OBJberenlist, that's where I try to add objectBeer_pluche or objectBeer_Elektro into it:
public partial class Beren : Form
{
public interface Berenlijst { }
public List<Berenlijst> OBJberenLijst = new List<Berenlijst>();
public Beren()
{
InitializeComponent();
}
private void Beren_Load(object sender, EventArgs e)
{
}
private void BTNToevoegen_Click(object sender, EventArgs e)
{
this.Hide();
Details Details = new Details();
if (Details.ShowDialog(this) == DialogResult.OK)
{
OBJberenLijst.Add(Details.getdetails());
}
Details.Close();
Details.Dispose();
}
public void LijstLaden()
{
foreach(Beer berenobject in OBJberenLijst)
{
LST_beren.Items.Add(berenobject.Naam);
}
}
}
}
from this form called details.cs
public partial class Details : Form
{
public Details()
{
InitializeComponent();
BTN_toevoegen.DialogResult = DialogResult.OK;
BTN_cancel.DialogResult = DialogResult.Cancel;
}
private void Details_Load(object sender, EventArgs e)
{
RDB_pluche.Checked = true;
BTN_ok.Enabled = false;
}
private void RDB_pluche_CheckedChanged(object sender, EventArgs e)
{
PANEL_pluche.Visible = true;
PANEL_elektro.Visible = false;
}
private void RDB_elektro_CheckedChanged(object sender, EventArgs e)
{
PANEL_pluche.Visible = false;
PANEL_elektro.Visible = true;
}
private void BTN_toevoegen_Click(object sender, EventArgs e)
{
open_foto.Filter = "jpg (*.jpg)|*.jpg|bmp(*.bmp)|*.bmp|png(*.png)|*.png";
if (open_foto.ShowDialog() == System.Windows.Forms.DialogResult.OK && open_foto.FileName.Length > 0)
{
TXT_adres.Text = open_foto.FileName;
PIC_beer.Image = Image.FromFile(open_foto.FileName);
}
}
private void BTN_ok_Click(object sender, EventArgs e)
{
}
public void getdetails()
{
if (RDB_pluche.Enabled == true)
{
Pluche_Beer objectBeer_pluche = new Pluche_Beer(TXTNaam_pluche.Text, open_foto.FileName, "(Wasprogramma: " + TXT_wasprogramma.ToString() + " Graden Celsius");
}
else
{
Elektronische_Beer objectBeer_Elektro = new Elektronische_Beer(TXTNaam_elekro.Text, open_foto.FileName, "aantal Batterijen: " + CMBOBatterijen.ToString());
}
}
private void Details_MouseMove(object sender, MouseEventArgs e)
{
foreach (Control c in this.Controls)
{
if (c is TextBox)
{
TextBox textBox = c as TextBox;
if (textBox.Text != string.Empty)
{
BTN_ok.Enabled = true;
}
}
}
}
}
}
The problem is between this line...
OBJberenLijst.Add(Details.getdetails());
...and this line.
public void getdetails()
List.Add() requires an object to add, but getdetails() returns void. You probably want to change getdetails() to something like the following:
public Berenlijst getdetails()
{
if (RDB_pluche.Enabled == true)
{
return new Pluche_Beer(TXTNaam_pluche.Text, open_foto.FileName, "(Wasprogramma: " + TXT_wasprogramma.ToString() + " Graden Celsius");
}
return new Elektronische_Beer(TXTNaam_elekro.Text, open_foto.FileName, "aantal Batterijen: " + CMBOBatterijen.ToString());
}
Hopefully Pluche_Beer and Elektronisch_Beer inherent from Berenlijst. Otherwise you'll have to revise your logic in a broader way.