Cannot Retrieve Original Value (of a dropdown List Value) form Edited Item of a radgrid control

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C#

ASP.NET

Hello, Please it's urgent.

i have a rad grid controls that display a list a facilities. When i click on the Edit link of the rad grid ; a Web User Control page "AddFacility.ascx" with edited items is displayed.

My problem is how to display the right selected value of a dropdownlist matching the right branchID(a field of the rad grid) in the web user control page "AddFacility.ascx" .

thank you in advance.


***Rad Grid and sql data source in frmFaility.aspx:***

<telerik:RadGrid ID="gvS"  runat="server" DataSourceID="tblFacilities" 
     GridLines="None" AllowPaging="True" AllowSorting="True" 
            Width="99%" AutoGenerateColumns="False"
            ShowStatusBar="True" OnPreRender="RadGrid1_PreRender" 
            OnNeedDataSource="RadGrid1_NeedDataSource" 
            OnUpdateCommand="RadGrid1_UpdateCommand" 
            OnInsertCommand="RadGrid1_InsertCommand" 
            OnDeleteCommand="RadGrid1_DeleteCommand" Skin="Black" 
        ShowGroupPanel="True"  önitemcommand="gvS_ItemCommand">  
<MasterTableView autogeneratecolumns="False" datasourceid="tblFacilities"
EditMode="PopUp" commanditemdisplay="Top" >
 <Columns>
 <telerik:GridBoundColumn DataField="cityID" HeaderText="City ID" 
            SortExpression="cityID" UniqueName="cityID" Visible="true">
        </telerik:GridBoundColumn>
         <telerik:GridBoundColumn DataField="branchID" HeaderText="Branch ID" 
            SortExpression="branchID" UniqueName="branchID" Visible="true">
        </telerik:GridBoundColumn>
 </Columns>
 <EditFormSettings UserControlName="addFacilityForm.ascx"   EditFormType="WebUserControl" CaptionFormatString=" Add Facility Form" FormStyle-Font-Bold=true >
   <FormStyle Font-Bold="True"></FormStyle>
   <PopUpSettings Width="70%" />
   <EditColumn UniqueName="EditCommandColumn1"></EditColumn>
</EditFormSettings>
</MasterTableView>
 <ClientSettings AllowDragToGroup="True"></ClientSettings>              
<FilterMenu EnableTheming="True">
<CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation>
</FilterMenu>
</telerik:RadGrid>
 <asp:SqlDataSource ID="tblFacilities" runat="server" 
        ConnectionString="<%$ ConnectionStrings:SmartBookingEngineConn %>"        
        SelectCommand="SELECT [Name], [Description], [Amount], [facilitiesID], [NameAr], [DescriptionAr], [createdDate], [updatedDate],[cityID],[branchID],[city],[Branch] FROM [viewFacilitiesMaster]">
</asp:SqlDataSource>

****frmFaility.aspx.cs***

protected void RadGrid1_UpdateCommand(object source, Telerik.Web.UI.GridCommandEventArgs e)
{
GridEditableItem editedItem = e.Item as GridEditableItem.EditFormUserControl userControl = UserControl)e.Item.FindControlGridEditFormItem.EditFormUserControlID);
string branchID = (userControl.FindControl("branchid") as RadTextBox).Text;
.....
}

*****Web User Control AddFacility.ascx*****

<tr>
 <td width="25%">
            <asp:Label ID="Label2" runat="server" Text=" Hotel City"></asp:Label>
 </td>
 <td width="75%">   
            <asp:DropDownList ID="ddlCity" runat="server" DataSourceID="tblCity" DataTextField="city" DataValueField="cityID" AutoPostBack="true">
            </asp:DropDownList>
            <asp:SqlDataSource ID="tblCity" runat="server" ConnectionString="<% $ ConnectionStrings:SmartBookingEngineConn %>" SelectCommand="select cityID,city from viewCityAdmin"></asp:SqlDataSource>
 </td>
</tr>

<tr>
  <td width="25%">
            <asp:Label ID="Label3" runat="server" Text=" Hotel Branch"></asp:Label>
  </td>
  <td width="75%">
           <asp:DropDownList ID="ddlBranch" runat="server" DataSourceID="tblBranch" 
                DataTextField="Branch" DataValueField="BranchID">
           
            </asp:DropDownList>

            <asp:SqlDataSource ID="tblBranch" runat="server" ConnectionString="<%$ ConnectionStrings:SmartBookingEngineConn %>" SelectCommand="SELECT [BranchID],[Branch] FROM [tblBranch] WHERE ([CityID]=@cityID)">
               <SelectParameters>
                <asp:ControlParameter Name="cityID" ControlID="ddlCity" PropertyName="SelectedValue" Type="String" />
               </SelectParameters>
            </asp:SqlDataSource> 

<telerik:RadTextBox ID="cityid"  runat="server" Height="28px" Visible="false"  Text='<%# DataBinder.Eval( Container, "DataItem.cityID"  ) %>' >
            </telerik:RadTextBox>
        </td>
      </tr>
      <tr>
        <td width="35%">
            <telerik:RadTextBox ID="usertypeid"  runat="server" Height="28px" Visible="false">
            </telerik:RadTextBox>
  </td>
</tr>

/pre>      

*****Web User Control AddFacility.ascx.cs*****  
<pre lang="c#">
protected void Page_Load(object sender, EventArgs e)
{
tblBranch.SelectCommand = "Select * from tblBranch where BranchID=@branchid";
tblBranch.SelectParameters.Clear();
tblBranch.SelectParameters.Add("branchid", branchid.Text.ToString());
tblBranch.DataBind();
}

the problem is that the textbox branchid is displaying the right edited item from the rad grid, but nothing is displayed on the dropdown list ddlBranch