> 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

"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
>
>

> 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
> >
> >