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RadTextBox Cut and Paste IE 7

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This is a migrated thread and some comments may be shown as answers.

9 Answers, 1 is accepted

answered on 05 Apr 2010, 02:06 PM

Hi Mark,

I am sorry, I don't see any problems with pasting inside RadTextBox in IE7 and RadControls 2009.3.1314. I tried pasting with right-clicking the mouse and with Ctrl-V - both worked.

Please provide a full runnable web page or modify the following until the issue is reproduced:

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

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<!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">

<meta http-equiv="content-type" content="text/html;charset=utf-8" />

<title>RadControls</title>

</head>

<body>

<form id="form1" runat="server">

<telerik:RadScriptManager ID="RadScriptManager1" runat="server" />

<telerik:RadTextBox ID="RadTextBox1" runat="server" MaxLength="200" TextMode="MultiLine" Width="800px" Height="500px" />

</form>

</body>

</html>

Best wishes,
Dimo
the Telerik team

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answered on 24 May 2010, 03:55 PM

We found the issue had to do with a local administrative IE setting set by the internal IT department. Here is how you can replicate the behavior.

In IE go to Tools>internet Options> Security Tab. select the Internet zone and click on Custom Level. Scroll to near the bottom under the section called scripting. "Allow Programmatic clipboard access". Select Disable.

In IE go to http://demos.telerik.com/aspnet-ajax/input/examples/radtextbox/firstlook/defaultcs.aspx

Set Max Length: 100

In the Multi-Line: Textbox try to copy and paste some text.

It doesn't work.

In a Asp.Net TextBox control we don't have this issue.

It relates to setting the max length and Multi Line.

answered on 26 May 2010, 09:18 AM

Hello Mark,

In order to support MaxLength for <textarea> elements (which normally do not have such a feature), we use programmatic access to the clipboard during paste operations.

In your case you can use the following workaround, which will probably be included in the next RadControls version, after some testing. The additional Javascript must be added to the page (or registered in an external JS file) in the <body>, not the <head>.

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

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<!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">

<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" MaxLength="3" TextMode="MultiLine" />

<script type="text/javascript">

if (typeof(Telerik) != "undefined" && typeof(Telerik.Web.UI.RadInputControl) != "undefined")

{

Telerik.Web.UI.RadInputControl.prototype._onTextBoxPasteHandler = function(e)

{

if (this.isMultiLine() && this._maxLength > 0)

{

if ($telerik.isSafari) // also Chrome

{

var thisObj = this;

window.setTimeout(function() { thisObj._textBoxElement.value = thisObj._textBoxElement.value.substr(0, thisObj._maxLength) }, 1);

}

else // IE

{

if (!e) var e = window.event;

var clipBoardAccessEnabled = true;

try

{

var clipString = window.clipboardData.getData("Text");

}

catch(e)

{

clipBoardAccessEnabled = false;

}

if (clipBoardAccessEnabled && clipString != "")

{

if (e.preventDefault) e.preventDefault();

var selection = this._textBoxElement.document.selection.createRange();

var length = this._maxLength - this._textBoxElement.value.length + selection.text.length;

var text = this._escapeNewLineChars(window.clipboardData.getData("Text"), "%0A").substr(0, length);

selection.text = text;

}

else

{

var thisObj = this;

window.setTimeout(function() { thisObj._textBoxElement.value = thisObj._textBoxElement.value.substr(0, thisObj._maxLength) }, 1);

}

</script>

</form>

</body>

</html>

All the best,
Dimo
the Telerik team