How to close the Radwindow management server manager button by clicking a button

Question

Hello everyone I developed a radwindow manager that will have a drop-down list and a text box and a button that are placed inside the update panel.

Everything works fine, but when I click the button, I close my window manager as follows

RadWindowManager1.Windows[0].VisibleOnPageLoad = false;

But this did not work, can someone help me, this is my design and code.

 <telerik:RadWindowManager ID="RadWindowManager1" runat="server" Behavior="Default" InitialBehavior="None"> <Windows> <telerik:RadWindow ID="RadWindow1" runat="server" Behaviors="Default" InitialBehaviors="None" OpenerElementID="btn" Width="650" Height="480" VisibleOnPageLoad="false"> <ContentTemplate> <asp:UpdatePanel ID="up" runat="server" OnUnload="up_Unload"> <Triggers> <asp:AsyncPostBackTrigger ControlID="rdcmb" EventName="SelectedIndexChanged" /> <asp:AsyncPostBackTrigger ControlID="radbtn" EventName="Click" /> </Triggers> <ContentTemplate> <telerik:RadComboBox ID="rdcmb" runat="server" AutoPostBack="true" OnSelectedIndexChanged="sel"> <Items> <telerik:RadComboBoxItem Text="One" Value="One" /> <telerik:RadComboBoxItem Text="Two" Value="Two" /> <telerik:RadComboBoxItem Text="Three" Value="Three" /> <telerik:RadComboBoxItem Text="Four" Value="Four" /> </Items> </telerik:RadComboBox> <telerik:RadTextBox ID="rdText" runat="server"> </telerik:RadTextBox> <telerik:RadButton ID="radbtn" runat="server" Text="Save" OnClick="btn_Click"> </telerik:RadButton> </ContentTemplate> </asp:UpdatePanel> </ContentTemplate> </telerik:RadWindow> </Windows> </telerik:RadWindowManager> <telerik:RadButton ID="rdbtnwhAnother" Text="Add WithHolding" runat="server" ButtonType="LinkButton" OnClick="rdbtnwhAnother_Click"> </telerik:RadButton> 

the code

 protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { RadWindowManager1.Windows[0].VisibleOnPageLoad = false; } } protected void rdbtnwhAnother_Click(object sender, EventArgs e) { RadWindowManager1.Windows[0].VisibleOnPageLoad = true; } protected void btn_Click(object sender, EventArgs e) { RadWindowManager1.Windows[0].VisibleOnPageLoad = false; } protected void sel(object sender, EventArgs e) { rdText.Text = rdcmb.SelectedItem.Text; } protected void up_Unload(object sender, EventArgs e) { /* Cast sender as an updatePanel, and use reflection to invoke * * the page scriptmanger registerUpdatePanel() method * * */ //RadWindowManager1.Windows[0].VisibleOnPageLoad = false; UpdatePanel aUpdatePanel = sender as UpdatePanel; MethodInfo m = ( from methods in typeof(ScriptManager).GetMethods( BindingFlags.NonPublic | BindingFlags.Instance ) where methods.Name.Equals("System.Web.UI.IScriptManagerInternal.RegisterUpdatePanel") select methods).First<MethodInfo>(); m.Invoke(ScriptManager.GetCurrent(aUpdatePanel.Page), new object[] { aUpdatePanel }); } 

Answer 1

 <script type="text/javascript"> function getRadWindow() { var oWindow = null; if (window.radWindow) oWindow = window.radWindow; else if (window.frameElement.radWindow) oWindow = window.frameElement.radWindow; return oWindow; } function clientClose(arg) { getRadWindow().close(arg); } </script> <telerik:RadButton ID="radbtn" runat="server" Text="Save" OnClick="btn_Click"> </telerik:RadButton> protected void btn_Click(object sender, EventArgs e) { string script = "clientClose('');"; ScriptManager.RegisterStartupScript(Page, typeof(Page), "closeScript", script, true); }