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persisting dynamic controls

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TabStrip

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answered on 10 Jul 2008, 03:23 AM

Hello Esteban,

You can use the ViewState collection of the page to store any configurations you might need to recreate the controls and add them to the page during a postback. This will allow you to persist your dynamic controls across postbacks.

    
            <%@ Page Language="C#" AutoEventWireup="true" CodeFile="TabStrip.aspx.cs" Inherits="TabStrip" %> 
        
            <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <html xmlns="http://www.w3.org/1999/xhtml"> 
        
            <head runat="server"> 
        
                <title>Untitled Page</title> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server"> 
        
                    <telerik:RadScriptManager ID="RadScriptManager1" runat="server" /> 
        
                    <telerik:RadTabStrip ID="RadTabStrip1" runat="server" 
        
                        MultiPageID="RadMultiPage1"> 
        
                        <Tabs> 
        
                            <telerik:RadTab Text="One" /> 
        
                            <telerik:RadTab Text="Two" /> 
        
                        </Tabs> 
        
                    </telerik:RadTabStrip> 
        
                    <telerik:RadMultiPage ID="RadMultiPage1" runat="server"> 
        
                        <telerik:RadPageView ID="RadPageView1" runat="server" 
        
                            OnLoad="RadPageView1_Load" > 
        
                            <asp:Button ID="Button1" runat="server"  
        
                                Text="Add TextBox"  
        
                                OnClick="Button1_Click" /> 
        
                        </telerik:RadPageView> 
        
                        <telerik:RadPageView ID="RadPageView2" runat="server" 
        
                            OnLoad="RadPageView2_Load" > 
        
                            <asp:Button ID="Button2" runat="server"  
        
                                Text="Add Button" 
        
                                OnClick="Button2_Click" /> 
        
                        </telerik:RadPageView> 
        
                    </telerik:RadMultiPage> 
        
                </form> 
        
            </body> 
        
            </html>

    
            using System; 
        
            using System.Web.UI.WebControls; 
        
            public partial class TabStrip : System.Web.UI.Page 
        
            { 
        
                protected void RadPageView1_Load(object sender, EventArgs e) 
        
                { 
        
                    if (ViewState["RadPageView1_Button_Text"] != null) 
        
                    { 
        
                        var button = new Button(); 
        
                        button.Text = ViewState["RadPageView1_Button_Text"] as string; 
        
                        button.Click += new EventHandler(Button_Click); 
        
                        RadPageView1.Controls.Add(button); 
        
                    } 
        
                } 
        
                protected void RadPageView2_Load(object sender, EventArgs e) 
        
                { 
        
                    if (ViewState["RadPageView2_TextBox_Text"] != null) 
        
                    { 
        
                        var textbox = new TextBox(); 
        
                        textbox.Text = ViewState["RadPageView2_TextBox_Text"] as string; 
        
                        RadPageView2.Controls.Add(textbox); 
        
                    } 
        
                } 
        
                protected void Button1_Click(object sender, EventArgs e) 
        
                { 
        
                    var button = new Button { Text = "Click me!" }; 
        
                    button.Click += new EventHandler(Button_Click); 
        
                    RadPageView1.Controls.Add(button); 
        
                    ViewState["RadPageView1_Button_Text"] = button.Text; 
        
                } 
        
                protected void Button2_Click(object sender, EventArgs e) 
        
                { 
        
                    var textbox = new TextBox { Text = "Write in me!" }; 
        
                    RadPageView2.Controls.Add(textbox); 
        
                    ViewState["RadPageView2_TextBox_Text"] = textbox.Text; 
        
                } 
        
                protected void Button_Click(object sender, EventArgs e) 
        
                { 
        
                    // Do something 
        
                } 
        
            }

Please let me know if you continue to need help.

Sincerely,
Kevin Babcock