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Dynamic create a TextField and Button

  1. #1
    Dec 16, 2010, 8:48 AM

    Dynamic create a TextField and Button

    Dynamic create a TextField and Button in the OnInit event.
    but i cann't get the correct value of TextField which user input or evaluate in the program.
    Who can help me.
    Thans
    Andy

    //Page UI:  
<body>
    <form id="form1" runat="server">
    <ext:ResourceManager ID="ResourceManager1"  runat="server" />
    <ext:Button ID="test" runat="server" Text="test">
        <DirectEvents>
            <Click OnEvent="btnClick"></Click>
        </DirectEvents>
    
    </ext:Button>
    </form>
</body>
</html>

//Page code:

    Ext.Net.Button b;
    Ext.Net.TextField c;
    protected override void OnInit(EventArgs e)
    {
        b = new Ext.Net.Button("Click Me");
        b.ID = "myID";
        b.DirectEvents.Click.Event += new ComponentDirectEvent.DirectEventHandler(AddClick);
        b.Render();
        this.Controls.Add(b);

        c = new Ext.Net.TextField();
        c.ID = "edt1";
        c.Render();
        this.Controls.Add(b);


    }

    protected void btnClick(object sender, DirectEventArgs e)
    {
        c.Text="123";
        c.Render();

    }

    protected virtual void AddClick(object sender, EventArgs e)
    {
        X.Msg.Alert("value",c.Text).Show();//<not show the  correct value   which user input  or evaluate in the program

     }
  2. #2
    Dec 16, 2010, 11:40 AM
    Hi,

    Render is not required in your case (if control is rendered during initial page load)
    Also need to add controls to the Form instead page if you need automatically submit of its values
    protected override void OnInit(EventArgs e)
{
        b = new Ext.Net.Button("Click Me");
        b.ID = "myID";
        b.DirectEvents.Click.Event += new ComponentDirectEvent.DirectEventHandler(AddClick);
        this.Form.Controls.Add(b);
 
        c = new Ext.Net.TextField();
        c.ID = "edt1";
        this.Form.Controls.Add(b);  
    }
 
    protected void btnClick(object sender, DirectEventArgs e)
    {
        c.Text="123"; 
    }
  3. #3
    Dec 16, 2010, 12:04 PM
    Hi,

    Here is a full sample.

    Example
    <%@ Page Language="C#" %>

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<%@ Register Assembly="Ext.Net.UX" Namespace="Ext.Net.UX" TagPrefix="ux" %>

<script runat="server">
    Ext.Net.Button b;
    Ext.Net.TextField c;

    protected override void OnInit(EventArgs e)
    {
        b = new Ext.Net.Button("Get .Text");
        b.DirectEvents.Click.Event += AddClick;
        this.Form.Controls.Add(b);

        c = new Ext.Net.TextField();
        this.Form.Controls.Add(c);
    }

    protected void btnClick(object sender, DirectEventArgs e)
    {
        c.Text = "123";
    }

    protected virtual void AddClick(object sender, EventArgs e)
    {
        X.Msg.Alert("value", c.Text).Show();
    }
</script>

<!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>Ext.Net Example</title>
</head>
<body>
    <form runat="server">
    <ext:ResourceManager runat="server" />
    <ext:Button runat="server" Text="Set .Text" OnDirectClick="btnClick" />
    </form>
</body>
</html>
  4. #4
    Dec 17, 2010, 1:16 AM

    It is right!

    It is right!
    Thank Vladimir and Daniil

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