How To Get Read Only Control Value Through SQl Data Source

Hello,

I am using this sql data source control.

<asp:textbox runat="server" id="txtFromDate" ReadOnly="true"></></asp:textbox>

 

<asp:textbox runat="server" id="txtToDate" ReadOnly="true"></asp:textbox>

--------------------------------->

<asp:sqldatasource id="dsClickInfo" runat="server" connectionstring="<%$ ConnectionStrings:activeConnectionString %>"

selectcommand="SProc_GetTransaction" selectcommandtype="StoredProcedure">

<SelectParameters>

<asp:QueryStringParameter QueryStringField="Id" Name="MerchantID" Type="int32" />

<asp:ControlParameter ControlID="txtFromDate" Name="StartDate" PropertyName="Text"

Type="String" DefaultValue="0" />

<asp:ControlParameter ControlID="txtToDate" Name="EndDate" PropertyName="Text"

Type="String" DefaultValue="0" />

</SelectParameters>

 

</asp:sqldatasource>

I abouve code txtFromDate and txtToDate are marked as readonly so sqldatasource is not able to get value from these controls.

How is it possible?

Please help me..