Keep SqlDataSource Update Parameter Default Value after AutoPostBack

Question

User-1305858305 posted

Hello,

I Need to add Sql Data Source Update Parameter in condition.

In my page I've DropDownList with AutoPostBack and opening TextBox based onSelectedIndexChanged Event. 

            DropDownList DropDownListCulet = (DropDownList)e.Item.FindControl("DropDownListHRDCulet");          
            TextBox TextBoxHRDNaturelCuletPercent = (TextBox)e.Item.FindControl("TextBoxHRDNaturelCuletPercent");
            if (DropDownListCulet.SelectedValue == "2")
            {
                sqlDataSourceListView.UpdateParameters["CuletID"].DefaultValue = DropDownListCulet.SelectedValue.ToString();
                sqlDataSourceListView.UpdateParameters["HRDCuletNaturalPercent"].DefaultValue = TextBoxHRDNaturelCuletPercent.Text.ToString();                
            }
            else
            {
                sqlDataSourceListView.UpdateParameters["CuletID"].DefaultValue = DropDownListCulet.SelectedValue.ToString();
                sqlDataSourceListView.UpdateParameters["HRDCuletNaturalPercent"].DefaultValue = null;
            }

DDL and TextBox getting value but dosnt update if AutoPostBack runs. If i remove autopostback everthings work good.

Any Idea?