When you get an error message as shown below click on the View Detail.. link. This will open this property box. Expand the exception to show the details and hover the mouse over the StackTrace property. Most of what you see listed there will probably be Greek to you (Apologies to the Grecian friends reading … Read more
Got it. I just need to create a new class for the eventargs. solved VB.NET: Creating an event with members
In order for {columns}.Concat(rows) to work, it seems you need to add an explicit call to AsEnumerable() in order to make sure the type TSource for Enumerable.Concat(IEnumerable<TSource>, IEnumerable<TSource>) is inferred correctly: Dim csvRows = { columns.AsEnumerable() }.Concat(rows) _ .Select(Function(r) String.Join(“,”, r)) Fixed fiddle #1 here. A DirectCast({columns}, IEnumerable(Of IEnumerable(Of String))) also seems to work, as … Read more
You haven’t converted it correctly. The VB code selects DataGridViewRows, the C# code selects ints. You want to take N rows. VB.NET supports Enumerable.Take directly in the LINQ query, C# does not support it. So i’d use method syntax in C#. So this works as desired (don’t translate Dim with dynamic but var): int takeRows … Read more
You will have to create a parameterless constructor for the class. solved Error trying to reference sub-routines in other modules of VB.net program
There are probably many ways you could do this. I have shown you one below but you would be assuming that textbox two contains the same amount of lines as textbox 1. It doesnt contain any validation but would do what you are asking. See the comments to understand what is happening. ‘Declare empty string … Read more
If you have the timer set up and working already, try something like this for your array: ‘These will be your labels: Dim oLabel As New Label Dim oLabel2 As New Label ‘Create the array from your labels: Dim aLabels() As Label = {oLabel, oLabel2} ‘loop through your array: For each oLabel as Label in … Read more
It looks like vb code if you want c# code then use following code cmd = new SqlCommand(“select name from wq where id='” + TextBox1.Text + “‘”, con); con.Open(); dr = cmd.ExecuteReader(); dr.Read(); TextBox2.Text = dr[0].ToString(); dr.Close(); con.Close(); 7 solved Trouble writing a select query [closed]
I’m guessing that tsidx and StreamDataBlockSize are Integer types. The largest number an Integer type can hold is 2,147,483,647. The multiplication in brackets is then done expecting an integer result, but the answer is out of the range of Integer types. Change your code to .. Dim position As Long = hisFileHeader.StreamStartDataPosition + (CLng(TSIdx) * … Read more
1) It’s probably silly to have a separate .bat file if you can do everything you want directly in the VB program. Have you considered just incorporating the functionality directly in VB? 2) To run a separate .bat file from VB.Net, perhaps the easiest way is to use Process.start(). EXAMPLE: System.Diagnostics.Process.Start(“c:\path\to\myfile.bat”) 3) Finally, you can … Read more
for simple .. use SELECT CASE Private Sub txtchange_Change() Select case Ucase(txtchange.Text) case “A” : lbloutput.Caption = “Apple” case “B” : lbloutput.Caption = “Banana” case “C” : lbloutput.Caption = “Cat” case “D” : lbloutput.Caption = “Dog” case “RED” : lbloutput.BackColor = RGB(255, 0, 0) case Else lbloutput.Caption = “Not Found” End Select End Sub 3 … Read more
In my opinion this can be done only with global hook. But global hook is not supported by .NET, take a look at this answer. So you can’t do this with VB.NET but can with C++. EDIT: you can do this with VB.NET or any other .NET language, see comments for pointers. 5 solved How … Read more
To get the home directory of the current user use: Dim homeDir As String = System.Environment.GetEnvironmentVariable(“USERPROFILE”) Then copy the file: My.Computer.FileSystem.CopyFile(“D:\FrewGame\Game\FrewShort.lnk”, homeDir & “\Desktop\” & “Name.lnk”) 3 solved Why doesn’t this code work? (VB.Net)
First you must read the your CSV.. i suppose that is not too big, so do something like Dim MyCSV() As String = IO.File.ReadAllLines(“c:\my file.csv”) Then go ahead with a “For Each” line in your CSV For Each Line In MyCSV.ToArray Next In this For Each you must split the current line.. and i suppose … Read more
I don’t have enough points to comment. First off, as others have said we can’t recreate this since we have no idea what your Form looks like or what you are expecting it to do. Secondly, you should turn on Option Strict in the Compile section of Project properties to avoid technical errors like ProgressBar2.Increment(0.6) … Read more