BoundColumn TextBox

[rn5a]

A DataGrid displays 8 columns - ProductID, ProductName, Description,
Price, Quantity, Sub-Total, Edit & Delete. *Edit* is a
EditCommandColumn, *Delete* is a ButtonColumn & *Quantity* is a
BoundColumn. If the *Edit* link is clicked, the *Quantity* column
changes to the editable mode with a TextBox & the text under the
*Edit* column of the corresponding row gets replaced by 2 hyperlinks -
Update & Cancel.

In order to ensure that the width of the TextBox in the BoundColumn &
consequently the entire width of the DataGrid doesn't change
drastically when the DataGrid is in the editable mode, I added the
following sub on the DataGrid's OnPreRender event:

Sub ChangeWidth(ByVal obj As Object, ByVal ea As EventArgs)
If (dgCart.EditItemIndex > -1) Then
Dim tb As TextBox =
CType(dgCart.Items(dgCart.EditItemIndex).Cells(4).Controls(0),
TextBox)
tb.ID = "txtQty"
tb.Height = Unit.Pixel(20)
tb.Width = Unit.Pixel(30)
End If
End Sub

The above code does change the width of the TextBox under the
*Quantity* column when the DataGrid is in the editable mode.but when I
try to retrieve the quantity entered by the user from the *Quantity*
TextBox in the UpdateCommand event function of the DataGrid as shown
below:

===========================
Sub UpdateCart(obj As Object, ea As DataGridCommandEventArgs)
Dim iQty As Integer

iQty = CType(ea.Item.Cells(4).Controls(0), TextBox).Text
Response.Write("Quantity: " & iQty)
End Sub
===========================

the variable 'iQty' turns out be blank!

But if I get rid of the OnPreRender event function, then the
OnUpdateCommand event function (named 'UpdateCart') of the DataGrid
correctly retrieves the quantity entered by the user in the *Quantity*
TextBox.

What's causing this & how do I resolve this issue?

 

[bruce barker]

its because you change the id

-- bruce (sqlwork.com)

 

[rn5a]

its because you change the id

-- bruce (sqlwork.com)













- Show quoted text -

Thanks for the prompt & correct response, Bruce....