Invalid cast exception

[aquafin]

I am dynamically creating a text box and adding it to the DataList
But it gives me an error at line : 7 ,Specified cast is not valid.

How do i add the text box control to the data list.

1: TextBox1 = New TextBox
2: TextBox1.ID = "tb" & i
3: TextBox1.Style("Position") = "Absolute"
4: TextBox1.Style("Top") = "25px"
5: TextBox1.Style("Left") = "100px"
6: TextBox1.Text = StrQuestion.Substring(0, 1)
7: DG1.Controls.Add(CType(TextBox1, System.Web.UI.Control))

[exterminator]

Try using the Convert class.

[TSmooth]

I could be wrong but I'm pretty sure you don't need to cast that at all. Just make it DG1.Controls.Add(TextBox1).

[aquafin]

I tried without using cast but it still gives me the same error.Could anyone please solve this for me?

[mmetzger]

What is DG1 defined as? Trying this with a datagrid doesn't give the same error but complains about the same id being present multiple times.

[aquafin]

DG1 is defined as datalist ,
I will try it with datagrid