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Editing RadGrid Records with RadWindow

The Window Editing demo shows how to use RadWindow for editing RadGrid records.

The demo uses a GridTemplateColumn that contains a HyperLink control to launch the window for editing, and a CommandItemTemplate to add a link that launches the window for inserts.

note

In Master page/UserControl scenario RadGrid should be ajaxified from the true RadAjaxManager but the RadAjaxManagerProxy.

Depending on the edit operation, RadGrid uses a different mechanism for launching the RadWindow object, initializing data values, and then assigning edited values back to the grid when editing is complete:

Edit/Update

  1. Using the grid's ItemCreated event, locate the HyperLink in the template column for each GridDataItem.

  2. Attach a javascript function to the onclick attribute of the HyperLink that opens RadWindow (passing the primary key for the currently created item as an argument).

  3. In the onclick handler, open the popup window calling window.radopen() and passing the primary key in the query string of the new window.

  4. In the content page of RadWindow retrieve the cell values from the grid source that corresponds to the primary key from the query string and display them in editable text boxes.

  5. When the user clicks the "Update" control in the window, update the selected row in the grid data source, close the popup window, and call a javascript function on the main page to rebind the grid.

  6. In the javascript function for rebinding the grid, generate an AJAX request using the RadAjaxManager.ajaxRequest method.

  7. In the Web page, intercept the manager's AjaxRequest event to handle the ajax request. In its handler, rebind the grid.

Insert

  1. In the CommandItemTemplate of the grid, add an anchor element () for inserting items. (Don't forget to set the CommandItemDisplay property of the grid so that the command item appears in the grid.)

  2. Attach an onclick handler to the anchor for opening the insertion form.

  3. In the onclick handler, open the popup window calling window.radopen() with no query parameters.

  4. When the user clicks the "Insert" control in the window, add a new row in the grid source, close the popup window, and call a javascript function on the main page to rebind the grid and navigate to the new record.

  5. In the javascript function for rebinding the grid, generate an AJAX request using the RadAjaxManager.ajaxRequest method.

  6. In the Web page, intercept the manager's AjaxRequestevent to handle the ajax request. In its handler, rebind the grid and move to the last page so that the inserted record is visible.

function ShowEditForm(id, rowIndex) {
  var grid = $find("<%= RadGrid1.ClientID %>");
  var rowControl = grid.get_masterTableView().get_dataItems()[rowIndex].get_element(); grid.get_masterTableView().selectItem(rowControl, true);
  window.radopen("EditForm.aspx?EmployeeID=" + id, "UserListDialog");
  return false;
}
function ShowInsertForm() {
  window.radopen("EditFormCS.aspx", "UserListDialog");
  return false;
}
function refreshGrid(arg) {
  if (!arg) {
    $find("<%= RadAjaxManager1.ClientID %>").ajaxRequest("Rebind");
  }
  else {
    $find("<%= RadAjaxManager1.ClientID %>").ajaxRequest("RebindAndNavigate");
  }
}
<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
  <AjaxSettings>
    <telerik:AjaxSetting AjaxControlID="RadAjaxManager1">
      <UpdatedControls>
        <telerik:AjaxUpdatedControl ControlID="RadGrid1" />
      </UpdatedControls>
    </telerik:AjaxSetting>
  </AjaxSettings>
</telerik:RadAjaxManager>
<telerik:RadGrid RenderMode="Lightweight" OnItemCreated="RadGrid1_ItemCreated" ID="RadGrid1" runat="server"
  Skin="Vista" AllowPaging="True" Width="97%" DataSourceID="SqlDataSource1">
  <PagerStyle Mode="NumericPages" />
  <MasterTableView AutoGenerateColumns="False" DataKeyNames="EmployeeID" Width="100%"
    CommandItemDisplay="Top" PageSize="5">
    <Columns>
      <telerik:GridBoundColumn DataField="EmployeeID" HeaderText="EmployeeID" ReadOnly="True"
        SortExpression="EmployeeID" UniqueName="EmployeeID">
      </telerik:GridBoundColumn>
      <telerik:GridBoundColumn DataField="FirstName" HeaderText="FirstName" SortExpression="FirstName"
        UniqueName="FirstName">
      </telerik:GridBoundColumn>
      <telerik:GridBoundColumn DataField="LastName" HeaderText="LastName" SortExpression="LastName"
        UniqueName="LastName">
      </telerik:GridBoundColumn>
      <telerik:GridBoundColumn DataField="Title" HeaderText="Title" SortExpression="Title"
        UniqueName="Title">
      </telerik:GridBoundColumn>
      <telerik:GridTemplateColumn UniqueName="TemplateEditColumn">
        <ItemTemplate>
          <asp:HyperLink ID="EditLink" runat="server" Text="Edit"></asp:HyperLink>
        </ItemTemplate>
      </telerik:GridTemplateColumn>
    </Columns>
    <CommandItemTemplate>
      <a href="#" onclick="return ShowInsertForm();">Add New Record</a>
    </CommandItemTemplate>
  </MasterTableView>
  <ClientSettings>
    <Selecting AllowRowSelect="true" />
  </ClientSettings>
</telerik:RadGrid>
<telerik:RadWindowManager RenderMode="Lightweight" ID="RadWindowManager1" runat="server" Skin="Vista">
  <Windows>
    <telerik:RadWindow RenderMode="Lightweight" Skin="Vista" ID="UserListDialog" runat="server" Title="User List Dialog"
      Height="400px" Width="300px" Left="150px" ReloadOnShow="true" Modal="true" />
  </Windows>
</telerik:RadWindowManager>
<asp:SqlDataSource ID="SqlDataSource1"
  runat="server" SelectCommand="SELECT [EmployeeID], [FirstName], [LastName], [Title] FROM [Employees]"
  ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>">
</asp:SqlDataSource>
protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
{
    if (e.Item is GridDataItem)
    {
        HyperLink editLink = (HyperLink)e.Item.FindControl("EditLink");
        editLink.Attributes["href"] = "#";
        editLink.Attributes["onclick"] = String.Format("return ShowEditForm('{0}','{1}');", e.Item.OwnerTableView.DataKeyValues[e.Item.ItemIndex]["EmployeeID"], e.Item.ItemIndex);
    }
}
protected void RadAjaxManager1_AjaxRequest(object sender, AjaxRequestEventArgs e)
{
    if (e.Argument == "Rebind")
    {
        RadGrid1.MasterTableView.SortExpressions.Clear();
        RadGrid1.MasterTableView.GroupByExpressions.Clear();
        RadGrid1.Rebind();
    }
    else if (e.Argument == "RebindAndNavigate")
    {
        RadGrid1.MasterTableView.SortExpressions.Clear();
        RadGrid1.MasterTableView.GroupByExpressions.Clear();
        RadGrid1.MasterTableView.CurrentPageIndex = RadGrid1.MasterTableView.PageCount - 1;
        RadGrid1.Rebind();
    }
}
Protected Sub RadGrid1_ItemCreated(ByVal sender As Object, ByVal e As GridItemEventArgs) Handles RadGrid1.ItemCreated
    If TypeOf e.Item Is GridDataItem Then
        Dim editLink As HyperLink = DirectCast(e.Item.FindControl("EditLink"), HyperLink)
        editLink.Attributes("href") = "#"
        editLink.Attributes("onclick") = [String].Format("return ShowEditForm('{0}','{1}');", e.Item.OwnerTableView.DataKeyValues(e.Item.ItemIndex)("EmployeeID"), e.Item.ItemIndex)
    End If
End Sub
Protected Sub RadAjaxManager1_AjaxRequest(ByVal sender As Object, ByVal e As AjaxRequestEventArgs)
    If e.Argument = "Rebind" Then
        RadGrid1.MasterTableView.SortExpressions.Clear()
        RadGrid1.MasterTableView.GroupByExpressions.Clear()
        RadGrid1.Rebind()
    ElseIf e.Argument = "RebindAndNavigate" Then
        RadGrid1.MasterTableView.SortExpressions.Clear()
        RadGrid1.MasterTableView.GroupByExpressions.Clear()
        RadGrid1.MasterTableView.CurrentPageIndex = RadGrid1.MasterTableView.PageCount - 1
        RadGrid1.Rebind()
    End If
End Sub
<script type="text/javascript">    function CloseAndRebind(args) {
    GetRadWindow().Close();
    GetRadWindow().BrowserWindow.refreshGrid(args);
  }
  function GetRadWindow() {
    var oWindow = null; if (window.radWindow)
      oWindow = window.radWindow; //Will work in Moz in all cases, including classic dialog  
    else if (window.frameElement.radWindow)
      oWindow = window.frameElement.radWindow; //IE (and Moz as well)          
    return oWindow;
  }
  function CancelEdit() {
    GetRadWindow().Close();
  }
</script>
<asp:DetailsView ID="DetailsView1" DataKeyNames="EmployeeID" runat="server" AutoGenerateRows="False"
  DataSourceID="SqlDataSource1" Height="50px" Width="125px" OnItemCommand="DetailsView1_ItemCommand">
  <Fields>
    <asp:BoundField DataField="FirstName" HeaderText="FirstName" SortExpression="FirstName" />
    <asp:BoundField DataField="LastName" HeaderText="LastName" SortExpression="LastName" />
    <asp:BoundField DataField="Title" HeaderText="Title" SortExpression="Title" />
    <asp:CommandField ShowEditButton="True" />
    <asp:CommandField ShowInsertButton="True" />
  </Fields>
</asp:DetailsView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" SelectCommand="SELECT [EmployeeID], [FirstName], [LastName], [Title] FROM [Employees] WHERE ([EmployeeID] = @EmployeeID)"
  UpdateCommand="UPDATE [Employees] SET [FirstName] = @FirstName, [LastName] = @LastName, [Title] = @Title WHERE [EmployeeID] = @EmployeeID"
  ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>">
  <UpdateParameters>
     <asp:Parameter Name="FirstName" Type="String" />
     <asp:Parameter Name="LastName" Type="String" />
     <asp:Parameter Name="Title" Type="String" />
     <asp:Parameter Name="EmployeeID" Type="Int32" />
  </UpdateParameters>
  <SelectParameters>
     <asp:QueryStringParameter Name="EmployeeID" QueryStringField="EmployeeID" Type="Int32" />
  </SelectParameters>
</asp:SqlDataSource>
protected void Page_Init(object sender, EventArgs e)
{
    if (Request.QueryString["EmployeeId"] == null)
    {
        DetailsView1.DefaultMode = DetailsViewMode.Insert;
    }
    else
    {
        DetailsView1.DefaultMode = DetailsViewMode.Edit;
    }
}
protected void DetailsView1_ItemCommand(object sender, System.Web.UI.WebControls.DetailsViewCommandEventArgs e)
{
    if (e.CommandName == "Update")
    {
        ClientScript.RegisterStartupScript(Page.GetType(), "mykey", "CloseAndRebind();",
            true);
    }
    else if (e.CommandName == "Insert")
    {
        ClientScript.RegisterStartupScript(Page.GetType(),
            "mykey", "CloseAndRebind('navigateToInserted');", true);
    }
    else
    {
        ClientScript.RegisterStartupScript(Page.GetType(),
            "mykey", "CancelEdit();", true);
    }
}
Protected Sub DetailsView1_ItemCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewCommandEventArgs) Handles DetailsView1.ItemCommand
    If (e.CommandName = "Update") Then
        ClientScript.RegisterStartupScript(Page.GetType(), "mykey", "CloseAndRebind();", True)
    ElseIf (e.CommandName = "Insert") Then
        ClientScript.RegisterStartupScript(Page.GetType(), "mykey", "CloseAndRebind('navigateToInserted');", True)
    Else
        ClientScript.RegisterStartupScript(Page.GetType(), "mykey", "CancelEdit();", True)
    End If
End Sub

Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
    If Request.QueryString("EmployeeId") Is Nothing Then
        DetailsView1.DefaultMode = DetailsViewMode.Insert
    Else
        DetailsView1.DefaultMode = DetailsViewMode.Edit
    End If
End Sub