Overwriting ControlParameters Of DataSources In Code-behind?
Mar 8, 2010
I have an ObjectDataSource (but perhaps this question is the same for all kinds of DataSources which support parameter collections):
<asp:ObjectDataSource ID="MyObjectDataSource" runat="server"
TypeName="MyData"
OldValuesParameterFormatString="original_{0}"
SelectMethod="GetMyData" >
<SelectParameters>
<asp:ControlParameter ControlID="MyTextBox" Name="MyParameter" Type="String" />
</SelectParameters>
</asp:ObjectDataSource>
As you can see there is a ControlParameter bound to a TextBox on the aspx page. So the content of this TextBox is a parameter for my SelectMethod. But there is a special button on the page: When this button is clicked and a postback occurs I don't want that the DataSource extracts the content of the TextBox to control the selection, instead I want to set a specific hard value "x" as the selection parameter.
How can I do that? Can I "disable" in some way the ControlParameter when this specific button is clicked and set my special value instead? Or is there any other way?
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