databound grid: Converting textbox to checkbox

[vituja123]

Hi All,

For one filed in my databound grid, I need to convert it from a textbox to a checkbox. But I cannot figure out the exact coding. I tried this but it doesn't work. It bombs out on the DIM statement below:

Sub LoadItemData(ByVal sender As Object, ByVal e As DataGridItemEventArgs)

If e.Item.DataItem("DataType") = "Checkbox" Then
Dim ChkBox As CheckBox = CType(e.Item.Cells(1).Controls(1), CheckBox)
If e.Item.DataItem("ValueData") = "0" Or e.Item.DataItem("ValueData") = "N" Then
CType(e.Item.Cells(1).Controls(1), CheckBox).Checked = False
Else
CType(e.Item.Cells(1).Controls(1), CheckBox).Checked = True
End If
end if

end sub

 

[jbenson001]

You can't convert a control from one type to another. What are you trying to do?

Jim

 

[dvannoy]

it WILL bomb out at the dim statement unless you actually have added a chkbox to your grid. you can't declare something that's not there.

 

[vituja123]

I have a datagrid with two columns, Label and textbox. When the data is being read and the fieldname is, lets say, "Testfield", i need to represent that as a checkbox instead of a textbox.

 

[ca8msm]

That's possible, but converting a TextBox to a CheckBox simply isn't - they are two completely different objects with different properties and methods.

All you need to do is get a reference to the relevant checkbox, and if the value of the label is "Testfield", then set the CheckBox's Checked property to True.


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[jbenson001]

I think you are a little confused. If you want a checkbox, then you need to create the column as a template column and add a checkbox into it.

Jim

 

[jshurst]

Check out this page...

http://aspnet.4guysfromrolla.com/articles/080702-1.aspx

Although this is for a drop down list it is the same principal.

Hope it helps!

 

[vituja123]

Thanks everyone. I just implemented something simular to jshurst example on 4guysfromrolla.

I think I got it to work.

Thanks again.