im tunning this loop and what to populate the array with the output of my methods, im not sure about that last part "array2DB[i,i] =" how shold i do this.
updated loop based on replyes
private void BackGroundLoop()
{
for (int i = 1; i < 31; i++)
{
string txbName = "br" + i + "txt" + '3';
TextBox txtBCont1 = (TextBox)this.Controls[txbName];
string string1 = txtBCont1.Text.ToString();
UpdateFormClass.runUserQuery(string1);
array2DB[0, i - 1] = int.Parse(UpdateFormClass.gamleSaker.ToString());
array2DB[1, i - 1] = int.Parse(UpdateFormClass.nyeSaker.ToString());
}
}
I'm not 100% sure what you want to do, but you want probably this instead of your last line:
array2DB[0, i - 1] = int.Parse(UpdateFormClass.gamleSaker.ToString());
array2DB[1, i - 1] = int.Parse(UpdateFormClass.nyeSaker.ToString());
-1 in index is needed, because arrays are indexed from 0 in .NET.
This is the most you can do, without running into exception:
int[,] array2DB = new int[2, 30];
for (int i = 0; i < 30; i++)
{
string txbName = "br" + i + "txt" + '3';
TextBox txtBCont1 = (TextBox)this.Controls[txbName];
string string1 = txtBCont1.Text.ToString();
UpdateFormClass.runUserQuery(string1);
array2DB[0,i] = int.Parse(UpdateFormClass.gamleSaker.ToString());
array2DB[1,i] = int.Parse(UpdateFormClass. nyeSaker.ToString());
}
Note that you can't have array2DB[2, *] or above because it will generate an arrayoutofbound exception.
You have to use two for loops. One for each the x and y axis of the array.
for (int i = 0; i < 2; i++){
for (int j = 0; j < 30; j++)
{
....
array2DB[i,j] = int.Parse(UpdateFormClass.gamleSaker.ToString())
, int.Parse(UpdateFormClass.nyeSaker.ToString());
}
}
Related
I have to rewrite the LCS algorithm because some company policies.
I've already get done the LCS algorithm, but next step is to identify which lines were removed from the previous text and which one were added in the current text.
I tried a simple check thought the lines, but it won't work if I got a text with duplicated lines.
He is my code:
LCS Method
private static string[] LcsLineByLine(string previous, string current)
{
string[] Previous = previous.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
string[] Current = current.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
string lcsResult = string.Empty;
int a = Previous.Length;
int b = Current.Length;
int[,] table = new int[a + 1, b + 1];
//create a table with first line and column equal 0
for (int i = 0; i <= a; i++)
table[i, 0] = 0;
for (int j = 0; j <= b; j++)
table[0, j] = 0;
//create a table matrix
for (int i = 1; i <= a; i++)
{
for (int j = 1; j <= b; j++)
{
if (string.Equals(Previous[i - 1].Trim(), Current[j - 1].Trim(), StringComparison.InvariantCultureIgnoreCase))
{
table[i, j] = table[i - 1, j - 1] + 1;
}
else
{
table[i, j] = Math.Max(table[i, j - 1], table[i - 1, j]);
}
}
}
//get the lcs string array with the differences
int index = table[a, b];
string[] lcs = new string[index + 1];
lcs[index] = "0";
while (a > 0 && b > 0)
{
if (string.Equals(Previous[a - 1].Trim(), Current[b - 1].Trim(), StringComparison.InvariantCultureIgnoreCase))
{
lcs[index - 1] = Previous[a - 1].Trim();
a--;
b--;
index--;
}
else if (table[a - 1, b] > table[a, b - 1])
a--;
else
b--;
}
return lcs;
}
And this is the code that is not working with duplicated lines with same value.
Method to get all deleted items in the previous text:
private List<DiffItem> GetDiffPrevious(string[] previous, string[] diff)
{
List<DiffItem> differences = new List<DiffItem>();
//check items deleted
int line = 0;
for (int i = 0; i < previous.Length; i++)
{
bool isAbsent = false;
for (int j = 0; j < diff.Length; j++)
{
if (string.Equals(previous[i].Trim(), diff[j].Trim(), StringComparison.InvariantCultureIgnoreCase))
{
differences.Add(new DiffItem() { Position = line, Text = diff[j], Status = DiffStatus.Equal });
line++;
isAbsent = false;
break;
}
else
{
isAbsent = true;
}
}
//mark as deleted
if (isAbsent)
{
differences.Add(new DiffItem() { Position = line, Text = previous[i].Trim(), Status = DiffStatus.Deleted });
line++;
}
}
return differences;
}
If anyone could help me or any feedback would be great. Just a reminder, I cannot use third party libraries.
Thanks in advance.
I found the solution!
Basically, I rewrite the two lists and translated using Hashtable, so all the values will be unique by line. Then, I use the method LCS and got the result as expected.
I hope it helps somebody.
How can I bubble sort a 2D string array by their lenght? In the array's zeroth column there are random generated messages and in the first column there are random generated priorities.
string[,] array = new string[50, 2];
Random r = new Random();
int number = 0;
int space = 0;
double fontossag = 0;
for (int i = 0; i < 50; i++)
{
string message = "";
int hossz = r.Next(10,51);
for (int h = 0; h < hossz; h++)
{
number = r.Next(0,101);
space = r.Next(0, 101);
if (number<=50)
{
message += (char)r.Next(97,122);
}
else if(number >= 50)
{
message += (char)r.Next(65, 90);
}
if (space<=10)
{
message += " ";
}
}
for (int f = 0; f < 50; f++)
{
fontossag = r.NextDouble() * (10.0);
}
array[i, 0] += message;
array[i, 1] += fontossag;
}
I want to sort the array by the random generated messages length.
This is my method to Bubble sort on the first column length:
public static string[,] BubbleSortStringByLength(string[,] array)
{
int num = array.GetLength(0);
for (int i = 0; i < num - 1; i++)
{
for (int j = 0; j < num - i - 1; j++)
{
if (array[j, 0].Length > array[j + 1, 0].Length)
{
// swap first column
string tmp = array[j, 0];
array[j, 0] = array[j + 1, 0];
array[j + 1, 0] = tmp;
// swap second column
tmp = array[j, 1];
array[j, 1] = array[j + 1, 1];
array[j + 1, 1] = tmp;
}
}
}
return array;
}
You can download the Visual Studio solution on GitHub
So you want to compare lengths of 1st columns and swap rows to ensure descending priority:
for (bool hasWork = true; hasWork;) {
hasWork = false;
for (int row = 0; row < array.GetLength(0) - 1; ++row) {
int priority1 = array[row, 0]?.Length ?? -1;
int priority2 = array[row + 1, 0]?.Length ?? -1;
// if we have wrong order...
if (priority1 < priority2) {
// we should keep on working to sort the array
hasWork = true;
// and swap incorrect rows
for (int column = 0; column < array.GetLength(1); ++column)
(array[row, column], array[row + 1, column]) =
(array[row + 1, column], array[row, column]);
}
}
}
Please, fiddle yourself
Hi all hoping for some direction. I have a text file that I am reading into a C# Form as a simple string array. I want to take each element and put them into their own text box on the form. I know I can do it as
textBox1.Text = myArray[0];
textBox2.Text = myArray[1];
and so forth but I was hoping for some sort of for or foreach statement to iterate through the array and textboxes.
For reference the form has 50 boxes on it and the array will always have 50 elements.
Thanks in advance!
Update, I appreciate both comments it got me pointed in the right direction. I was really struggling to think through it. What I ended up coming up with is:
//Read Data
string[] lines = File.ReadAllLines(Globals.savePath);
//Write Data To Form
for (int i = 1; i <= 20; i++)
{
TextBox textBox = (TextBox)groupBox1.Controls["textBox" + i];
textBox.Text = lines[i-1];
}
for (int i = 21; i <= 40; i++)
{
TextBox textBox = (TextBox)groupBox2.Controls["textBox" + i];
textBox.Text = lines[i - 1];
}
for (int i = 41; i <= 60; i++)
{
TextBox textBox = (TextBox)groupBox3.Controls["textBox" + i];
textBox.Text = lines[i - 1];
}
for (int i = 61; i <= 80; i++)
{
TextBox textBox = (TextBox)groupBox4.Controls["textBox" + i];
textBox.Text = lines[i - 1];
}
I am sure there is a cleaner way to do this. But this worked for me and was much better then doing the whole
textbox1.Text = myArray[0]
Plus it had the added benefit of translating over when to the next part where I was editing text boxes and than writing back to the text file.
string[] lines = new string [81];
for (int i = 1; i <= 20; i++)
{
TextBox textBox = (TextBox)groupBox1.Controls["textBox" + i];
lines[i - 1] = textBox.Text;
}
for (int i = 21; i <= 40; i++)
{
TextBox textBox = (TextBox)groupBox2.Controls["textBox" + i];
lines[i - 1] = textBox.Text;
}
for (int i = 41; i <= 60; i++)
{
TextBox textBox = (TextBox)groupBox3.Controls["textBox" + i];
lines[i - 1] = textBox.Text;
}
for (int i = 61; i <= 80; i++)
{
TextBox textBox = (TextBox)groupBox4.Controls["textBox" + i];
lines[i - 1] = textBox.Text;
}
lines[81] = "End";
File.Delete(Globals.savePath);
File.WriteAllLines(Globals.savePath, lines);
Once again Thank You to those that commented!
This is my first attempt at an answer, so fingers crossed this is helpful. I would store the textboxes in a list, then when you loop through your array, just do something like the following:
var maxItems = myArray.Length;
for(int loop = 0; loop < maxItems; loop++)
{
textBoxItemList[loop].Text = myArray[loop];
}
This could be tweaked to determine the loop size using the smallest array size, so you didn't go out of bounds. The maxItems is there just as an example of where you would set this up.
Hope that helps.
The user basically enters a number of hex values into a textbox separated by commas eg. AA,1B,FF. These are then displayed in a listbox box. if the number of hex values in the textbox exceeds the size to transfer defined by the user, the listbox only displays the this number of values or if the size to transfer is bigger that adds zero values to the listbox.
this works fine until you enter a value with a zero in front of it such as AA,BB,CC,DD,EE,0F, if sizeToTransfer = 2, the listbox should display 0xAA and 0xBB. but instead it only removes the 0F value?
I'm pretty new to programming so it may be something obvious I'm missing any help would be appreciated.
private void WriteSPI1_Click(object sender, EventArgs e)
{
string hexstring = textbox1.Text;
HexValues.Items.Clear();
string[] hexarray = hexstring.Split((",\r\n".ToCharArray()), StringSplitOptions.RemoveEmptyEntries);
byte[] hexbytes = new byte[hexarray.Length];
uint num = Convert.ToUInt32(hexarray.Length);
for (int j = 0; j < hexarray.Length; j++)
{
hexbytes[j] = Convert.ToByte(hexarray[j], 16);
Hexlist.Add(hexbytes[j]);
writebuff = Hexlist.ToArray();
x = writebuff[j].ToString("X2");
HexValues.Items.Add("0x" + x);
}
if (hexarray.Length > sizeToTransfer)
{
diff = num - sizeToTransfer;
for (i = 0; i < diff+1; i++)
{
HexValues.Items.Remove("0x" + x);
}
}
else
{
diff = sizeToTransfer - num;
for (i = 0; i < diff; i++)
{
HexValues.Items.Add("0x00");
}
}
}
CHANGE
for (int j = 0; j < sizeToTransfer; j++)
{
hexbytes[j] = Convert.ToByte(hexarray[j], 16);
Hexlist.Add(hexbytes[j]);
writebuff = Hexlist.ToArray();
x = writebuff[j].ToString("X2");
HexValues.Items.Add("0x" + x);
}
WITH
for (int j = 0; j < hexarray.Length; j++)
{
hexbytes[j] = Convert.ToByte(hexarray[j], 16);
Hexlist.Add(hexbytes[j]);
writebuff = Hexlist.ToArray();
x = writebuff[j].ToString("X2");
HexValues.Items.Add("0x" + x);
}
and remove the if stantment that follow
It's showing arrays don't have to many dimensions.
string[][] a = new string[10][];
int bound0 = a.GetUpperBound(0);
int bound1 = a.GetUpperBound(1);
for (int i = 1; i <= bound0; i++)
{
for (int x = bound0; x >1; x--)
{
Console.Write Line(" Page-- " + i + " -- PAGE " + bound0);
bound0--;
x--;
i++;
}
}
Actually I have done this in using for loops requirement is to use array in my app here is for loop:
for (int i = 1; i < bound0; i++)
{
for (int j = bound0; j > 1; j--)
{
Console.WriteLine(" Page-- " + i + " -- PAGE " + bound0);
bound0--;
j--;
i++;
string[][] is an Array of String Arrays.In other words: jagged array.Not two dimensional array.If you want two dimensional array use:
string[,] array = new string[10,10];
Also see the documentation