Re: GridViewRow FindControl failing
- From: "Ian Suttle" <Ian.Suttle@xxxxxxxxx>
- Date: 28 Jul 2006 16:34:05 -0700
You can definitely do this from some of the gridview events such as
selectedindexchanged. Depending on the event will determine how it's
done. If you were to in fact do this on SelectedIndexChanged it would
like something like (from MS docs):
// Get the selected row from the GridView control.
GridViewRow selectRow = MyGridView.SelectedRow;
or during data binding:
void CustomersGridView_RowDataBound(Object sender, GridViewRowEventArgs
e)
{
if(e.Row.RowType == DataControlRowType.DataRow)
{
// Display the company name in italics.
e.Row.Cells[1].Text = "<i>" + e.Row.Cells[1].Text + "</i>";
}
}
Thanks,
Ian Suttle
http://www.iansuttle.com
Erik wrote:
Thank you for the response.
Is there a way to get the dynamic control's value from the GridViewRow cell
if FindControl will not work?
"Ian Suttle" wrote:
If I recall, FindControl will only locate the control id specified if
it resides as a direct child of the control you are finding from. For
instance, if you have a control in Page and do Page.FindControl(id)
then it would find it. If you have a Panel (Panel1) with a control and
do Page.FindControl(id) it would not work. You'd need to do
Panel1.FindControl.
Alternatively, you may not know the hierarchy of the controls. In this
case you could recursively loop through the controls on the page to
locate the control you want.
Does that make sense?
Ian Suttle
http://www.iansuttle.com
Erik wrote:
Good Afternoon,
I am creating some dynamic controls on RowDataBound for a GridView (this
code is at the bottom). The controls are created and rendered properly, but
FindControl is failing when trying to get the value for each control:
For Each r As GridViewRow In gvwResults.Rows
Dim sValue As String = ""
'Cell(1) - ManagerTypeCode
Dim sManagerTypeCode = r.Cells(1).Text
'Cell(2) - ProfileFieldID
Dim sProfileFieldId As String = r.Cells(2).Text
'Cell(3) - control created in gvwResults_RowDataBound
If Not r.Cells(3).FindControl("txtb" & sProfileFieldId) Is Nothing Then
sValue = CType(r.Cells(3).FindControl("txtb" & sProfileFieldId),
TextBox).Text
ElseIf Not r.Cells(3).FindControl("drop" & sProfileFieldId) Is Nothing Then
sValue = CType(r.Cells(3).FindControl("drop" & sProfileFieldId),
DropDownList).SelectedValue
End If
Next
An example for a control's ID when viewing the source is
"ctl00_Content_gvwResults_ctl02_drop1". I have tried this value, and just
"drop1", but cannot find the control.
Any suggestions, help, or insight on why I am unable to find the dynamic
controls is greatly appreciated.
Thank you, Erik
Protected Sub gvwResults_RowDataBound(ByVal sender As Object, ByVal e As
GridViewRowEventArgs) Handles gvwResults.RowDataBound
Dim rowView As DataRowView = CType(e.Row.DataItem, DataRowView)
If Not rowView Is Nothing Then
Dim sName As String = rowView("ProfileFieldName").ToString
Dim sListValues As String =
rowView("ProfileFieldListValues").ToString
If e.Row.RowType = DataControlRowType.DataRow Then
Dim sValue As String =
GetContactProfileValue(rowView("ProfileFieldID"))
If sListValues.Length <> 0 Then
Dim splitout = Split(sListValues, ",")
Dim arrl As New ArrayList
For i As Integer = 0 To UBound(splitout)
arrl.Add(splitout(i))
Next
Dim ddl As New DropDownList
ddl.ID = "drop" & rowView("ProfileFieldID").ToString
ddl.Width = 150
ddl.CssClass = "resultsgrid"
ddl.DataSource = arrl
ddl.DataBind()
If sValue.Length <> 0 Then
ddl.Items.FindByText(sValue).Selected = True
End If
e.Row.Cells(3).Controls.Add(ddl)
Else
Dim txtb As New TextBox
txtb.ID = "txtb" & rowView("ProfileFieldID").ToString
txtb.Width = 150
If sValue.Length <> 0 Then
txtb.Text = sValue.Trim
End If
txtb.CssClass = "resultsgrid"
e.Row.Cells(3).Controls.Add(txtb)
End If
End If
End If
End Sub
.
- References:
- GridViewRow FindControl failing
- From: Erik
- Re: GridViewRow FindControl failing
- From: Ian Suttle
- Re: GridViewRow FindControl failing
- From: Erik
- GridViewRow FindControl failing
- Prev by Date: Re: Page with User control loads twice.
- Next by Date: Re: DropdownLisr problem on postback
- Previous by thread: Re: GridViewRow FindControl failing
- Next by thread: Re: gridview hyperLinkField
- Index(es):
Relevant Pages
|
