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Get value of disabled control

  1. #1
    Mar 16, 2009, 7:15 AM

    Get value of disabled control

    Hi,

    When I try to get a value of a disabled control (combobox, datefield,...) it's empty, but the fields have content. Is it a bug?


    Thanks.
  2. #2
    Mar 16, 2009, 7:38 PM

    RE: Get value of disabled control

    I've also noted this. Would be nice to have fixed.

    Cheers,
    Timothy
  3. #3
    Mar 16, 2009, 9:03 PM

    RE: Get value of disabled control

    Hi,

    Can you post a sample which reproduces the error, or modify the code sample below.

    Example

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

<%@ Register assembly="Coolite.Ext.Web" namespace="Coolite.Ext.Web" tagprefix="ext" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.Page.IsPostBack || !Ext.IsAjaxRequest)
        {
            this.TextField1.Text = "Hello";
            this.TextBox1.Text = "World";
        }
    }
    
    protected void Button1_Click(object sender, EventArgs e)
    {
        string tmp = "TextField1: {0}<br />TextBox1: {1}<br />{2}";

        this.Label1.Html = string.Format(tmp, this.TextField1.Text, this.TextBox1.Text, DateTime.Now.ToLongTimeString());
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Coolite Toolkit Example</title>
</head>
<body>
    <form runat="server">
        <ext:ScriptManager ID="ScriptManager1" runat="server" />
    
        <ext:TextField ID="TextField1" runat="server" Enabled="false" />
        
        <asp:TextBox ID="TextBox1" runat="server" Enabled="false" />
        
        <ext:Button ID="Button1" runat="server" Text="Submit">
            <AjaxEvents>
                <Click OnEvent="Button1_Click" />
            </AjaxEvents>
        </ext:Button>
        
        <ext:Label ID="Label1" runat="server" />
    </form>
</body>
</html>
    Geoffrey McGill
    Founder
    Ext.NETASP.NET UI Component framework
    RetypeDocumentation website generator
    MojeeLightning fast Emoji library for .NET
    Ext.NET Examples|Ext.NET API Docs|ExtJS API Docs|Twitter
  4. #4
    Mar 16, 2009, 9:11 PM

    RE: Get value of disabled control

    Use a regular post back with AutoPostBack="True" should do it Geoffrey.

    Cheers,
    Timothy
  5. #5
    Mar 16, 2009, 9:26 PM

    RE: Get value of disabled control

    I'll retest with AutoPostback="true", although I would expect the same results because a standard PostBack and an AjaxEvent both use exactly the same internals. An AjaxEvent is a PostBack, but only performed asynchronously. But... I will test the scenario to confirm.

    Geoffrey McGill
    Founder
    Ext.NETASP.NET UI Component framework
    RetypeDocumentation website generator
    MojeeLightning fast Emoji library for .NET
    Ext.NET Examples|Ext.NET API Docs|ExtJS API Docs|Twitter
  6. #6
    Mar 16, 2009, 9:29 PM

    RE: Get value of disabled control

    Here's what I'm testing with now.

    Example

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

<%@ Register assembly="Coolite.Ext.Web" namespace="Coolite.Ext.Web" tagprefix="ext" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.Page.IsPostBack)
        {
            this.TextField1.Text = "Hello";
            this.TextBox1.Text = "World";
        }
    }
    
    protected void Button1_Click(object sender, EventArgs e)
    {
        string tmp = "TextField1: {0}<br />TextBox1: {1}<br />{2}";

        this.Label1.Html = string.Format(tmp, this.TextField1.Text, this.TextBox1.Text, DateTime.Now.ToLongTimeString());
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Coolite Toolkit Example</title>
</head>
<body>
    <form runat="server">
        <ext:ScriptManager ID="ScriptManager1" runat="server" />
    
        <ext:TextField ID="TextField1" runat="server" Enabled="false" />
        
        <asp:TextBox ID="TextBox1" runat="server" Enabled="false" />
        
        <ext:Button ID="Button1" runat="server" Text="Submit" AutoPostBack="true" &#111;nclick="Button1_Click" />
        
        <ext:Label ID="Label1" runat="server" />
    </form>
</body>
</html>
    Hope this helps.

    Geoffrey McGill
    Founder
    Ext.NETASP.NET UI Component framework
    RetypeDocumentation website generator
    MojeeLightning fast Emoji library for .NET
    Ext.NET Examples|Ext.NET API Docs|ExtJS API Docs|Twitter
  7. #7
    Mar 17, 2009, 5:09 AM

    RE: Get value of disabled control

    <P class=MsoNormal style="MARGIN: 0cm 0cm 4.5pt"> Hi,

    For example, I have this combobox:



    
<P class=MsoNormal style="MARGIN: 0cm 0cm 4.5pt"><ext:ComboBox ID="cbChannel" AllowBlank="false" BlankText="<%$Resources: itemObligatory %>" runat="server" StoreID="storeChannelsTypes" Width="120" DisplayField="Description" ValueField="UniqueId" TypeAhead="true" Mode="Local" TriggerAction="All" Editable="false" ItemSelector="div.list-item" SelectOnFocus="true" EmptyText="<%$ Resources: cbEmptyText %>">
    <Template ID="Template4" runat="server">
        <tpl for=".">
            <div class="list-item">
                <h3>{Description}</h3>
            

        </tpl>
    </Template>
</ext:ComboBox>

    If I do the next operations:

     
<P class=MsoNormal style="MARGIN: 0cm 0cm 4.5pt">    this.cbChannel.Disable();
    string sValue = this.cbChannel.SelectedItem.Value;
    sValue always is empty, even if I have selected any item of the combobox.
    Then... if I disable the combo I can't get its value.

    I hope that this example can be useful to you.


    Thank you for your time.


  8. #8
    Mar 17, 2009, 5:19 AM

    RE: Get value of disabled control

    With the textfield itsn't happend. It happends, almost, with the combobox control and datafield control.
  9. #9
    Mar 27, 2009, 3:53 AM

    RE: Get value of disabled control

    I modify it. I also had problems with the textfield when it was disabled.


    Best wishes.

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