Update ASP.net controls via Direct Method

  1. #1

    Update ASP.net controls via Direct Method

    Is it possible to update the ASP.net controls eg. TextBox, Repeater (not Coolite controls) via DirectMethod.

    Thanks
  2. #2
    Geoffrey McGill
    Founder & CEO
  3. #3
    oops... that link above was posted to the wrong thread. Please disregard.
    Geoffrey McGill
    Founder & CEO
  4. #4
    Yes, there are a couple ways to update non-Ext.NET controls during a DirectEvent/DirectMethod.

    The following sample demonstrates both.

    1. Getting a lite-weight "Element" instance of the Control which allows for setting of attributes of the underlying html element. The TextBox renders an <input> element, which has a "value" attribute, so calling .SetValue(...) will set this underlying "value".

    2. Calling the .Update() extension method on the Control which will completely re-render the html for this specific Control. The .Update() Method can be called on any ASP.NET Control.

    Example

    <%@ Page Language="C#" %>
     
    <%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
    
    <script runat="server">
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!X.IsAjaxRequest)
            {
                this.TextBox1.Text = DateTime.Now.ToLongTimeString();
                this.TextBox2.Text = DateTime.Now.ToLongTimeString();
            }
        }
        
        protected void Button1_Click(object sender, DirectEventArgs e)
        {
            X.Get(this.TextBox1).SetValue(DateTime.Now.ToLongTimeString());
            X.Get(this.TextBox2).SetValue(DateTime.Now.ToLongTimeString());
        }
    
        protected void Button2_Click(object sender, DirectEventArgs e)
        {
            this.TextBox1.Text = DateTime.Now.ToLongTimeString();
            this.TextBox2.Text = DateTime.Now.ToLongTimeString();
            
            // Call .Update()
            this.TextBox1.Update();
            this.TextBox2.Update();
        }
    </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" />
            
            <asp:TextBox ID="TextBox1" runat="server" />
            <asp:TextBox ID="TextBox2" runat="server" />
            
            <ext:Button runat="server" Text="Update TextBox1" OnDirectClick="Button1_Click" />
            <ext:Button runat="server" Text="Update TextBox2" OnDirectClick="Button2_Click" />
        </form>
    </body>
    </html>
    Hope this helps.
    Geoffrey McGill
    Founder & CEO
  5. #5
    In running these tests we did fix a defect with the .Update() Method. The fix has been committed to SVN and will be publicly available with the next v1.0 release.
    Geoffrey McGill
    Founder & CEO

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