Accessing Dynamic Control Properties On a Placeholder

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HI
How do I access the properties of a dynamic controls(eg. textbox,dropdownlist) on a place holder in vb.net. I have strings of queries to run but the number and type of control depends on the parameter of the Query string. I have successfully created the controls but can not access their properties. When I loop through the place holder my control are not found.

Please I need a help.
Thanks in advance.

Posted 28-Mar-11 23:16pm

Gomda

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R. Giskard Reventlov 29-Mar-11 5:17am

Look at ViewState

Sunasara Imdadhusen 29-Mar-11 5:32am

Where is your code?

Gomda 29-Mar-11 7:08am

Hi digital
ViewState is set to true

Gomda 29-Mar-11 7:12am

Hi Sunasara Imdadhusen. find below my codes:

Function getPameterValue(ByVal ParentCtrl As Object, ByVal CtrName As String) As String
Dim childCtrl As Control
getPameterValue = ""

For Each childCtrl In ParentCtrl.Controls 'ParamPlaceHolder
If TypeOf childCtrl Is TextBox Then
If childCtrl.ID = CtrName Then 'Or childCtrl.UniqueID = CtrName
getPameterValue = "'" & CType(childCtrl, TextBox).Text & "'"
End If

ElseIf TypeOf childCtrl Is DropDownList Then
If childCtrl.ID = CtrName Then 'Or childCtrl.UniqueID = CtrName
getPameterValue = "'" & CType(childCtrl, DropDownList).SelectedItem.Value.ToString & "'"
End If

End If

Next childCtrl

Return getPameterValue
End Function

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Gomda · Answer 1 · 2011-03-29T01:06:00

Function getPameterValue(ByVal ParentCtrl As Object, ByVal CtrName As String) As String
Dim childCtrl As Control
getPameterValue = ""

For Each childCtrl In ParentCtrl.Controls 'ParamPlaceHolder
If TypeOf childCtrl Is TextBox Then
If childCtrl.ID = CtrName Then 'Or childCtrl.UniqueID = CtrName
getPameterValue = "'" & CType(childCtrl, TextBox).Text & "'"
End If

ElseIf TypeOf childCtrl Is DropDownList Then
If childCtrl.ID = CtrName Then 'Or childCtrl.UniqueID = CtrName
getPameterValue = "'" & CType(childCtrl, DropDownList).SelectedItem.Value.ToString & "'"
End If

End If

Next childCtrl

Return getPameterValue
End Function

**R. Giskard Reventlov** · Answer 2 · 2011-03-29T00:05:00

Solution 1

Oddly, this just came up as the 'Featured Article[^]' for today! This might be quite helpful.

Posted 29-Mar-11 0:05am

R. Giskard Reventlov