In VB I can loop through controls, or refer to a control by concatenating a variable to a string. Something like:
Dim I as integer
I = 1
Me["Textbox" & I].Text = "Some text"
What is the C# equivalent of this last statement?
4 Answers
You can access the control by the control's name:
Me.Controls("TextBox" & I).Text = "Some text"
And the same in C#:
this.Controls["TextBox" + I].Text = "Some text";
1 Comment
Cameron Castillo
C# does not have the Me collection. And replacing Me with this does not work either. No wait. Using the controls collection might work...
int i = 1;
this.Controls["TextBox" & i].Text = "Some text";
The above code is assuming that it is in a Control/Form.
6 Comments
Cameron Castillo
This does not give any compile errors, but in runtime it gives an error that the control is null. In the immediate window it will say that this.Controls["MyControl1") have a value, but if I assign it to something the error is this.Controls["MyControl1"]' is null
Richard Schneider
Possible issues (1) a control named "TextBox1" is not defined (2) is not "IN" this control but a subcontrol (3) the control has been loaded yet.
Cameron Castillo
1. It is defined as I can read and the value from this.MyControl if I don't use the variable. So I guess it is not in the Controls collection. Will search some more.
Richard Schneider
Its most likely inside of a Panel or something.
Cameron Castillo
Yes, it is a subcontrol. It was on a tab control. Thanks for help!!
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Close to SysDragan' solution, but Me just needs to be replaced with this. And yes, you need to specify the Controls collection.
this.Controls["TextBox" & I].Text = "Some text";
Comments
int I = 1;
this["Textbox" + I].Text = "some text";
OR
int I = 1;
this.Page["Textbox" + I].Text = "some text";
OR
int I = 1;
this.Controls["Textbox" + I].Text = "some text";
1 Comment
Cameron Castillo
Seems like this is not working. Need to specify the Controls collection.
Me["Textbox" & I].Text = "Some text"works in VBNet?