sample
<telerik:RadAjaxManager ID=”RadAjaxManager1″ runat=”server” RequestQueueSize=”5″> <AjaxSettings> <telerik:AjaxSetting AjaxControlID=”timer”> <UpdatedControls> <telerik:AjaxUpdatedControl ControlID=”RadGrid1″ LoadingPanelID=”RadAjaxLoadingPanel1″ /> <telerik:AjaxUpdatedControl ControlID=”Label1″ /> <telerik:AjaxUpdatedControl ControlID=”Label2″ /> </UpdatedControls> </telerik:AjaxSetting> <telerik:AjaxSetting AjaxControlID=”RadGrid1″> <UpdatedControls> <telerik:AjaxUpdatedControl ControlID=”RadGrid1″ LoadingPanelID=”RadAjaxLoadingPanel1″ /> <telerik:AjaxUpdatedControl ControlID=”Label1″ /> </UpdatedControls> </telerik:AjaxSetting> </AjaxSettings> </telerik:RadAjaxManager> <asp:Timer ID=”timer” runat=”server” Interval=”5000″ ontick=”timer_Tick”></asp:Timer> <asp:Label ID=”Label1″ runat=”server” Text=”Label”></asp:Label> <asp:Label ID=”Label2″ runat=”server” Text=”Label”></asp:Label> <telerik:RadAjaxLoadingPanel runat=”server” ID=”RadAjaxLoadingPanel1″ BackColor=”LightSeaGreen” > <div style=”width:100%;height:100%”></div> </telerik:RadAjaxLoadingPanel> <div style=”width:1000px”> <telerik:RadGrid ID=”RadGrid1″ runat=”server” Width=”100%” AllowPaging=”true” AllowSorting=”true” AutoGenerateColumns=”false” OnPageIndexChanged=”RadGrid1_PageIndexChanged” OnPageSizeChanged=”RadGrid1_PageSizeChanged” OnSortCommand=”RadGrid1_SortCommand” AllowFilteringByColumn=”true” OnItemDataBound=”RadGrid1_ItemDataBound”> <MasterTableView AutoGenerateColumns=”false” AllowFilteringByColumn=”True” ShowFooter=”True”> <Columns> <telerik:GridMaskedColumn DataField=”CustomerID” HeaderText=”CustomerID” FilterControlWidth=”50px” CurrentFilterFunction=”EqualTo” ShowFilterIcon=”true” UniqueName=”CustomerID”> </telerik:GridMaskedColumn> <telerik:GridBoundColumn FilterControlWidth=”120px” DataField=”CompanyName” HeaderText=”CompanyName” CurrentFilterFunction=”Contains” ShowFilterIcon=”true”> </telerik:GridBoundColumn> <telerik:GridBoundColumn FilterControlWidth=”120px” DataField=”ContactTitle” HeaderText=”ContactTitle” AutoPostBackOnFilter=”true” CurrentFilterFunction=”Contains” ShowFilterIcon=”true”> </telerik:GridBoundColumn> <telerik:GridBoundColumn FilterControlWidth=”120px” DataField=”Address” HeaderText=”Address” AutoPostBackOnFilter=”true” CurrentFilterFunction=”Contains” ShowFilterIcon=”true”> </telerik:GridBoundColumn> <telerik:GridBoundColumn FilterControlWidth=”120px” DataField=”Phone” HeaderText=”Phone” AutoPostBackOnFilter=”true” CurrentFilterFunction=”Contains” ShowFilterIcon=”true”> </telerik:GridBoundColumn> </Columns> </MasterTableView> </telerik:RadGrid> </div>
——————————————– protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { LoadDataForRadGrid1(); Label1.Text = DateTime.Now.ToString(“dd/MM/yyyy hh:mm:ss tt”); } }
private void LoadDataForRadGrid1() { DataTable Source = new DataTable(); Source=(DataTable)Cache[“MyDataSet”]; if (Source == null) { RadGrid1.DataSource = GetDataTable(); Label2.Text = “dt”; } else { RadGrid1.DataSource = Source; Label2.Text = “cache”; } }
public DataTable GetDataTable() {
DataTable dt = new DataTable(); DataColumn dc = new DataColumn(); dc.ColumnName = “CustomerID”; dc.DataType = typeof(string); dt.Columns.Add(dc);
dc = new DataColumn(); dc.ColumnName = “CompanyName”; dc.DataType = typeof(string); dt.Columns.Add(dc);
dc = new DataColumn(); dc.ColumnName = “ContactTitle”; dc.DataType = typeof(string); dt.Columns.Add(dc);
dc = new DataColumn(); dc.ColumnName = “Address”; dc.DataType = typeof(string); dt.Columns.Add(dc);
dc = new DataColumn(); dc.ColumnName = “Phone”; dc.DataType = typeof(string);
dt.Columns.Add(dc); int i;
for (i = 0; i < 300; i++) { dt.Rows.Add(new object[] { “1”+i, “Max”+i, “Hello my name is Max and I am software engineer.”, “Demo@Gmail.com“, “My Phone is 123456789” }); } Cache[“MyDataSet”] = dt; TimeSpan freshness = new TimeSpan(0, 0, 0, 60); DateTime now = DateTime.Now; Response.Cache.SetExpires(now.Add(freshness)); Response.Cache.SetMaxAge(freshness); Response.Cache.SetCacheability(HttpCacheability.Server); Response.Cache.SetValidUntilExpires(true); return dt;
}
protected void RadGrid1_PageIndexChanged(object sender, Telerik.Web.UI.GridPageChangedEventArgs e) { LoadDataForRadGrid1(); } protected void RadGrid1_PageSizeChanged(object sender, Telerik.Web.UI.GridPageSizeChangedEventArgs e) { LoadDataForRadGrid1(); } protected void RadGrid1_SortCommand(object sender, Telerik.Web.UI.GridSortCommandEventArgs e) { LoadDataForRadGrid1(); }
//protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e) //{ // if (e.CommandName == RadGrid.FilterCommandName) // { // LoadDataForRadGrid1(); // //Pair filterPair = (Pair)e.CommandArgument; // ////gridMessage1 = “Current Filter function: ‘” + filterPair.First + “‘ for column ‘” + filterPair.Second + “‘”; // //TextBox filterBox = (e.Item as GridFilteringItem)[filterPair.Second.ToString()].Controls[0] as TextBox; // ////gridMessage2 = “<br> Entered pattern for search: ” + filterBox.Text; // //LoadDataForRadGrid1(); // //RadGrid1.MasterTableView.FilterExpression = “([” + filterPair.Second + “] LIKE \’%” + filterBox.Text+”%\’) “; // //GridColumn column = RadGrid1.MasterTableView.GetColumnSafe(filterPair.Second.ToString());
// //column.CurrentFilterFunction = GridKnownFunction.Contains; // //column.CurrentFilterValue = filterBox.Text; // } //} //private string gridMessage1 = null, gridMessage2 = null; //protected void RadGrid1_DataBound(object sender, EventArgs e) //{ // if (!string.IsNullOrEmpty(gridMessage1)) // { // //Current Filter function: ‘StartsWith’ for column ‘CompanyName’ // //Entered pattern for search: a // //DisplayMessage(gridMessage1); // //DisplayMessage(gridMessage2);
// // RadGrid1.MasterTableView.FilterExpression = “([ColumeUniqueName] = ” + ViewState(“ID”) + “)”; // //RadGrid1.Rebind();
// } //} //private void DisplayMessage(string text) //{ // //RadGrid1.Controls.Add(new LiteralControl(string.Format(“<span style=’color:red’>{0}</span>”, text))); //}
protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e) { if (e.Item is GridPagerItem) { RadComboBox PageSizeCombo = (RadComboBox)e.Item.FindControl(“PageSizeComboBox”); PageSizeCombo.Items.Clear();
PageSizeCombo.Items.Add(new RadComboBoxItem(“10”)); PageSizeCombo.FindItemByText(“10”).Attributes.Add(“ownerTableViewId”, RadGrid1.MasterTableView.ClientID);
PageSizeCombo.Items.Add(new RadComboBoxItem(“20”)); PageSizeCombo.FindItemByText(“20”).Attributes.Add(“ownerTableViewId”, RadGrid1.MasterTableView.ClientID);
PageSizeCombo.Items.Add(new RadComboBoxItem(“30”)); PageSizeCombo.FindItemByText(“30”).Attributes.Add(“ownerTableViewId”, RadGrid1.MasterTableView.ClientID);
PageSizeCombo.Items.Add(new RadComboBoxItem(“40”)); PageSizeCombo.FindItemByText(“40”).Attributes.Add(“ownerTableViewId”, RadGrid1.MasterTableView.ClientID);
PageSizeCombo.Items.Add(new RadComboBoxItem(“50”)); PageSizeCombo.FindItemByText(“50”).Attributes.Add(“ownerTableViewId”, RadGrid1.MasterTableView.ClientID);
PageSizeCombo.Items.Add(new RadComboBoxItem(“60”)); PageSizeCombo.FindItemByText(“60”).Attributes.Add(“ownerTableViewId”, RadGrid1.MasterTableView.ClientID);
PageSizeCombo.Items.Add(new RadComboBoxItem(“70”)); PageSizeCombo.FindItemByText(“70”).Attributes.Add(“ownerTableViewId”, RadGrid1.MasterTableView.ClientID);
PageSizeCombo.FindItemByText(e.Item.OwnerTableView.PageSize.ToString()).Selected = true; } } protected void timer_Tick(object sender, EventArgs e) { LoadDataForRadGrid1(); Label1.Text = DateTime.Now.ToString(“dd/MM/yyyy hh:mm:ss tt”); }
Nandakumar 