Dynamically Created ButtonColumn Not firing event

[WyldGynjer]

I am creating a datagrid dynamically,I have 3 columns -
1 - data bound column from a dataset that is generated based on my parenty key
2 - Input text box
3 - button that will be used to save the data entered in the text box


Problem:
My button does nothing. It's like it doesn't fire any event.

Code:
I am trying to create a child datagrid ( a datagrid that is displayed in the row beneath a "parent" row that dispalys many rows from another table) - so I call this function within the parent datagrids ItemDataBound function.

' code to create my child dataset: oBillDS
' code to create the datagrid
NewDg = New DataGrid
NewDg.AutoGenerateColumns = False
Dim cDgCol As DataColumn

For Each cDgCol In oBillDS.Tables(0).Columns
If cDgCol.ColumnName = "Pnum" Then
NewDg.Columns.Add(CreateBoundControl(cDgCol))
End If

Next
NewDg.Width = Unit.Percentage(100)

Dim tc1 As New TemplateColumn
tc1.HeaderTemplate = New DataGridTemplate(ListItemType.Header, "Amount Paid")
tc1.ItemTemplate = New DataGridTemplate(ListItemType.Item, "From DB Amt Paid")
tc1.EditItemTemplate = New DataGridTemplate(ListItemType.EditItem, "AmtPaid")
tc1.FooterTemplate = New DataGridTemplate(ListItemType.Footer, "NoFooter")
NewDg.Columns.Add(tc1)

Dim txtBoxColumn As New ButtonColumn

txtBoxColumn.CommandName = "MyCommmand"
txtBoxColumn.Text = "Update"
txtBoxColumn.ButtonType = ButtonColumnType.PushButton
' my attempt to add a handler for my datagrid
AddHandler NewDg.ItemCommand, AddressOf NewDG_EditCommand
NewDg.Columns.Add(txtBoxColumn)
NewDg.EnableViewState = True

NewDg.EditItemIndex = 0

NewDg.DataSource = oBillDS
NewDg.DataBind()

Dim sw As New System.IO.StringWriter
Dim htw As New System.Web.UI.HtmlTextWriter(sw)
NewDg.RenderControl(htw)

Dim DivStart As String = "<DIV id=uniquename" + e.Item.ItemIndex.ToString("' style='DISPLAY: none>'")
Dim DivBody As String = sw.ToString()
Dim DivEnd As String = "</DIV>"
Dim FullDIV As String = DivStart + DivBody + DivEnd

Dim LastCellPosition As Integer = e.Item.Cells.Count - 1
Dim NewCellPosition As Integer = e.Item.Cells.Count - 2

e.Item.Cells(0).ID = "CellInfo" + e.Item.ItemIndex.ToString()

If e.Item.ItemType = ListItemType.Item Then
e.Item.Cells(LastCellPosition).Controls.Add(New LiteralControl("</td><tr><td bgcolor='f5f5f5'></td><td colspan='" + NewCellPosition.ToString + "'>" + FullDIV))
Else
e.Item.Cells(LastCellPosition).Controls.Add(New LiteralControl("</td><tr><td bgcolor='d3d3d3'></td><td colspan='" + NewCellPosition.ToString + "'>" + FullDIV))

End If
e.Item.Cells(0).Attributes("onmouseover") = "this.style.cursor='pointer'"
e.Item.Cells(0).Attributes("onmouseout") = "this.style.cursor='pointer'"


' Sub that I thought would fire - but doesn't

Public Sub NewDG_EditCommand(ByVal sender As Object, ByVal e As DataGridCommandEventArgs)
Response.Redirect("

Http://msn.com")

End Sub

Does anyone have any suggestions as to why my event is never fired. I thought the buttonColumn would fire the ItemCommand event of the datagrid --- if anyone has any thoughts - I'd greatly appreciate them.

 

[WyldGynjer]

Well that is just weird - cuz it won't work for me! however using your code as an example -- I've been successful in getting my datagrid to look like I wanted - now I just have to code the functionality of the events fired and make the grid look right - it's a bit funky

Your example really helped me - thank you!

 

[KDavie]

I think I know what the problem is... Did you wire up the events in the generated code's InitializeComponent method? The events won't fire if you don't wire them up.

private void InitializeComponent()
{
	this.dgParent.ItemCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.dgParent_ItemCommand);
	this.dgParent.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.dgParent_ItemDataBound);
	this.Load += new System.EventHandler(this.Page_Load);

}

 

[WyldGynjer]

KDavie - actually I had added that part - but only partially -- I didn't have the itemdatabound...but I had the itemcommand & load


so now it does work -- and that is what i had wanted! Well, close - I would LOVE to not have the user have to press update/cancel after each row - and just be able to open the screen and have a text box and then a button at the bottom and save the data. But I don't think that's how the edit works - so I'm going to get this working then eventually look into changing it. I have an idea that may work - we'll see

You have been a huge help - thank you - I was able to use your example and tie it into what I had - and now it is pretty close to what I want.

I was giving up on this idea. Thank you to all who gave me help on this!

 

[KDavie]

Great, glad to hear you have it working. You can acheive your desired look and feel by implementing your own form of editing, rather than using the built in edit features.