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Changing RadTextBox ForeColor In CodeBehind Works Only For One Time And Fore More Problems Appear

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Majid Darab
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Majid Darab asked on 29 Jun 2010, 09:33 PM
hi dear telerik team :
my aspx code is like this :
<html xmlns="http://www.w3.org/1999/xhtml" > 
<head runat="server"> 
    <title></title> 
     
     
    <link href="App_Themes/Input/Office2007ByMe/Input.Office2007ByMe.css" rel="stylesheet" 
        type="text/css" /> 
     
</head> 
<body> 
    <form id="form1" runat="server"> 
    <telerik:RadScriptManager ID="RadScriptManager1" runat="server"> 
    </telerik:RadScriptManager> 
    <div> 
        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server"> 
            <AjaxSettings> 
                <telerik:AjaxSetting AjaxControlID="Button1"> 
                    <UpdatedControls> 
                        <telerik:AjaxUpdatedControl ControlID="RadTextBox1" /> 
                        <telerik:AjaxUpdatedControl ControlID="Button1" /> 
                    </UpdatedControls> 
                </telerik:AjaxSetting> 
                <telerik:AjaxSetting AjaxControlID="Button2"> 
                    <UpdatedControls> 
                        <telerik:AjaxUpdatedControl ControlID="RadTextBox1" /> 
                        <telerik:AjaxUpdatedControl ControlID="Button2" /> 
                    </UpdatedControls> 
                </telerik:AjaxSetting> 
                <telerik:AjaxSetting AjaxControlID="Button3"> 
                    <UpdatedControls> 
                        <telerik:AjaxUpdatedControl ControlID="RadTextBox1" /> 
                        <telerik:AjaxUpdatedControl ControlID="Button3" /> 
                    </UpdatedControls> 
                </telerik:AjaxSetting> 
            </AjaxSettings> 
        </telerik:RadAjaxManager> 
        <telerik:RadTextBox ID="RadTextBox1" runat="server" EnableEmbeddedSkins="False"  
            Width="125px" Skin="Office2007ByMe"> 
        </telerik:RadTextBox> 
        <br /> 
        <br /> 
        <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" /> 
        <asp:Button ID="Button2" runat="server"  Text="Button"  
            onclick="Button2_Click" /> 
        <asp:Button ID="Button3" runat="server"  Text="Button"  
            onclick="Button3_Click" /> 
    </div> 
    </form> 
</body> 
</html> 

and codebehind :
using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
 
namespace ChatRoomByMajid 
{ 
    public partial class WebForm2 : System.Web.UI.Page 
    { 
        protected void Page_Load(object sender, EventArgs e) 
        { 
             
        } 
 
 
        protected void Button1_Click(object sender, EventArgs e) 
        { 
            RadTextBox1.ForeColor = System.Drawing.Color.Red; 
             
        } 
 
        protected void Button2_Click(object sender, EventArgs e) 
        { 
            RadTextBox1.ForeColor = System.Drawing.Color.Yellow; 
        } 
 
        protected void Button3_Click(object sender, EventArgs e) 
        { 
            RadTextBox1.ForeColor = System.Drawing.Color.Blue; 
        } 
    } 
} 
 


when i click those buttons so the forecolor changes , but when the radtextbox gets focus for entering data so the previous color is shown!

how can i fix this problem ?
(i made the simple upper code for understanding)

best regards








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Dimo
Telerik team
answered on 01 Jul 2010, 01:16 PM
Hi Majid,

Please use

RadTextBox1.EnabledStyle.ForeColor = System.Drawing.Color.Red;
RadTextBox1.HoveredStyle.ForeColor = System.Drawing.Color.Red;
RadTextBox1.FocusedStyle.ForeColor = System.Drawing.Color.Red;

The single ForeColor property can be used only on initial page load.

Regards,
Dimo
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Lenny_shp
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answered on 06 Jul 2010, 08:58 PM
Same issue here (only works the first time), I set all 3 in TextChanged event with 2009.3.1503.35 and is still not working for me in IE8.

Skin="Simple" ReadOnly="true"

Text shows, just the color isn't changing between black and red.

            txtEntityDesc.EnabledStyle.ForeColor = Drawing.Color.Red
            txtEntityDesc.HoveredStyle.ForeColor = Drawing.Color.Red
            txtEntityDesc.FocusedStyle.ForeColor = Drawing.Color.Red

0
Dimo
Telerik team
answered on 07 Jul 2010, 07:27 AM
Hi Lenny,

Here is a simple test page, which works as expected on my side. Please compare with your implementation.


<%@ Page Language="C#" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
 
<script runat="server">
 
    protected void RadTextBox1_TextChanged(object sender, EventArgs e)
    {
        (sender as RadTextBox).EnabledStyle.ForeColor = System.Drawing.Color.Red;
        (sender as RadTextBox).HoveredStyle.ForeColor = System.Drawing.Color.Red;
        (sender as RadTextBox).FocusedStyle.ForeColor = System.Drawing.Color.Red;
    }
     
</script>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 
<head runat="server">
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<title>RadControls</title>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
 
<telerik:RadTextBox ID="RadTextBox1" runat="server" OnTextChanged="RadTextBox1_TextChanged" Text="black text" />
 
<asp:Button ID="Button1" runat="server" Text="PostBack" />
 
</form>
</body>
</html>


Greetings,
Dimo
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Lenny_shp
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answered on 07 Jul 2010, 07:21 PM
It stopped working when ReadOnly="true".

Per Dino's message, setting ReadOnlyStyle.ForeColor worked!
0
Dimo
Telerik team
answered on 08 Jul 2010, 07:41 AM
Well, if you are using ReadOnly="true", you need to set ReadOnlyStyle.ForeColor.

Regards,
Dimo
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Infinity
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answered on 27 Feb 2011, 12:47 AM
I'm having the same issue with the RadTextbox's ReadOnlyStyle.ForeColor property, but I am also using Ajax.

In my project, I have a checkbox:

<asp:CheckBox ID="chkIncludeForm" AutoPostBack="true" runat="server" Text="Include Form with this filing." />

When clicked, the remaining RadTextbox controls on the panel are made ReadOnly or Writeable based on the value of the checkbox:

Private Sub chkIncludeForm_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles chkIncludeForm.CheckedChanged
  
     For Each pageControl As Control In pnlForm.Controls
  
          If TypeOf pageControl Is RadTextBox Then
               Dim refControl As RadTextBox = CType(pageControl, RadTextBox)
  
               If chkIncludeForm.Checked Then
                    refControl.ReadOnlyStyle.BackColor = Drawing.Color.AntiqueWhite
                    refControl.ReadOnly = False
               Else
                    refControl.ReadOnlyStyle.BackColor = Drawing.Color.DarkGray
                    refControl.ReadOnly = True
               End If
          End If
     Next
End Sub

The page is Ajaxified with the RadAjaxManager, like so:

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="chkIncludeForm">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="pnlForm" LoadingPanelID="ldpForm" />
                </UpdatedControls>
            </telerik:AjaxSetting>
        </AjaxSettings>
    </telerik:RadAjaxManager>

The click event of the checkbox fires properly on the server and each RadTexbox is disabled accordingly, but the ReadOnlyStyle.BackColor preoprty is not taking effect.  Do I need to call the updateCssClass method on the client-side for each control for the change to take effect or is there something else that needs to be done?

Thanks!

Steve
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Lenny_shp
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answered on 02 Mar 2011, 03:52 PM
Since you are setting ReadOnly to false in the condition you can try using

refControl.BackColor = Drawing.Color.AntiqueWhite
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Infinity
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answered on 02 Mar 2011, 03:58 PM
Thanks, Lenny...  But it's the ReadOnlyStyle.BackColor that's not working properly when when ReadOnly = True...  The standard control BackColor is working properly.  (You are correct that the first part of that If Statement isn't needed.)
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Lenny_shp
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answered on 02 Mar 2011, 04:28 PM
I am changing ReadOnlyStyle.Forecolor in an AJAX call and it works fine in 2010.2.809.35  IE8.

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Asked by
Majid Darab
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Answers by
Dimo
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Lenny_shp
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Infinity
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