Comments by Member 12127618

Member 12127618 26-May-16 1:13am View

Please look at the video.
For him works for me not.
Why?

Member 12127618 26-May-16 0:29am View

Thank you.
But I have another question. It's just a question for my knowledge.
With your example I can run with no problem, It changes user's write to uppercase, but I do not understand why it selects a whole row and at the first of running all of rows are selected.
Can you explain me please why?

Member 12127618 26-May-16 0:08am View

Do you mean my problem does not have any solution?
Please look at this video:
https://youtu.be/bejVqkvsZPc?t=1525
I write his code in vb as you see in my code. For him it works.
All other part of code before this part was OK and exactly the same.

Member 12127618 26-May-16 0:02am View

Deleted

OK, I will do it. But the problem is that RowIndex just returns -1. I need to change user's write to uppercase. Because RowIndex never returns other number, I cannot do that. Did you understand my problem?
Please help me for my main problem

Member 12127618 26-May-16 0:01am View

Deleted

OK, I will do it. But the problem is that RowIndex just returns -1. I need to change user's write to uppercase. Because RowIndex never returns other number, I cannot do that. Did you understand my problem?
Please help me for my main problem

Member 12127618 25-May-16 13:09pm View

You said I have to make sure that the index is valid. I said I tried that and it returns -1.
So what else?
I didn't understand how to solve the problem.
Please Explain more
Thank you

Member 12127618 25-May-16 11:25am View

no, I don't want to handle a single event for RowIndex = -1.
I didn't understand what is your suggestion for me.
But if it is possible for you, instead of that, explain please, how to do following:
I want user put letter with all upper case. if user didn't, application do it for that cell.

Member 12127618 25-May-16 11:19am View

I have 21 rows. The code should wait until my selection; but i get problem at the first of running.

Member 12127618 25-May-16 9:30am View

WinForm

Member 12127618 7-Dec-15 13:02pm View

Deleted

Thank you for your fast answer.
But the problem is that i take the text of check box from user and i have more than one check box. so when i want to change text of check box, the sub that related to this addhandler doesn't know which check box i want.
This is my code:

Public Class Form1

Dim CheckBoxes As List(Of CheckBox) = New List(Of CheckBox)

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dim i As Integer = 1
Dim x As Integer = 10
Dim y As Integer = 15

For j As Integer = 0 To 5

Dim chk As New CheckBox

chk.Location = New Point(x, y)
chk.Width = 70
chk.ContextMenuStrip = ContextMenuStrip1
chk.Text = "ABC"
GroupBox1.Controls.Add(chk)
CheckBoxes.Add(chk)
x = x + 70
y = y + 50
AddHandler chk.ContextMenuStrip.Items(0).Click, AddressOf ChkBox_CheckedChanged
Next
End Sub

Private Sub ChkBox_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
Try
Dim chkBox As New CheckBox
chkBox = TryCast(sender, CheckBox)

chkBox.Text = InputBox("Write new text")
Catch ex As Exception
MsgBox(ex.Message)
End Try

End Sub

End Class

Member 12127618 6-Dec-15 15:35pm View

I have similar problem.
But how did you use the DataRow?
I want to change text of checkbox by inputbox.

I have a context menu strip, and one item as"rename",with that I wanna change text of checkbox.
But the problem is that after using addhandler, when i write this code:

Dim chkBox As CheckBox = TryCast(sender, CheckBox)
chkBox.Text = InputBox("Write new text")

I got this error:

An unhandled exception of type 'System.NullReferenceException' occurred in prosto.exe

Additional information: Object reference not set to an instance of an object.

Can you help me please to solve this problem?

Comments by Member 12127618 (Top 11 by date)