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FieldSet's property Collapsed seems not work well

  1. #1
    Jan 26, 2011, 1:58 PM

    FieldSet's property Collapsed seems not work well

    Hi:
    Here is my codes:

    Exaple:
                <ext:FieldSet id="fs" Title="FieldSet1" Collapsible="true" runat="server">
            </ext:FieldSet>

            <ext:Button ID="btn" Text="button1" runat="server">
                <DirectEvents>
                    <Click OnEvent="btn_Click"></Click>
                </DirectEvents>
            </ext:Button>
    Code Behind:
        protected void Page_Load(object sender, EventArgs e)
    {
        fs.Collapsed = true; // let the fieldset collapsed in codebehind
    }

    protected void btn_Click(object sender, DirectEventArgs e)
    {
        X.MessageBox.Alert("is collapsed?", fs.Collapsed.ToString()).Show(); // show the fieldset's status
    }
    Do as follow:
    Let the fieldset collapsed in codebehind, and then expand it in IE, click the button to check the result.
    The alert shows 'True'!
    When the page postback, the fieldset has been expanded, why the Collapsed=true?:p
  2. #2
    Jan 26, 2011, 3:07 PM
    Hi,

    When DirectEvent is initiated, whole page life cycle is executed including Page_Load. So, it .Collapsed is set to true during DirectEvent also.

    To avoid this please wrap Page_Load code in 
    if (!X.IsAjaxRequest)
{
    this.FieldSet1.Collapsed = true;
}
    Full 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.FieldSet1.Collapsed = true;
        }
    }

    protected void Button_Click(object sender, DirectEventArgs e)
    {
        X.MessageBox.Alert("Is collapsed?", this.FieldSet1.Collapsed.ToString()).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:FieldSet 
        ID="FieldSet1" 
        runat="server" 
        Collapsible="true" 
        Width="200">
        <Items>
            <ext:TextField runat="server" />
        </Items>
    </ext:FieldSet>
    <ext:Button runat="server" Text="Is collapsed" OnDirectClick="Button_Click" />
    </form>
</body>
</html>

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