Unable to get HTML content from one window to another

3 posts, 0 answers
  1. Huzefa
    Huzefa avatar
    4 posts
    Member since:
    Oct 2008

    Posted 22 Oct 2008 Link to this post

    Hi Everyone,

    I have taken one Radwindow and have a rad editor displayed in that window.
    Now with the help of javascript i taking a reference to the editor and passing the html content from the window to the form.

    Here is the javascript in the RadWindow having editor

    function saveClicked() 
            var editor = $find('ReditorGc')//GetRadEditor("ReditorGc"); //get a reference to RadEditor client object 
            var oValue = editor.get_html(false); //get the HTML content 
            oValue = oValue.replace("<","&lt;"); 
            oValue = oValue.replace(">","&gt;");
            var oWindow = GetRadWindow(); 
            var arg = new Object();      
            arg.content = oValue; 
            oWindow.argument = arg; 
        function GetRadWindow() 
            var oWindow = null
            if (window.radWindow) oWindow = window.radWindow; 
            else if (window.frameElement.radWindow) oWindow = window.frameElement.radWindow; 
            return oWindow; 

    OnClientClose event of the RadWindow and i taking the value of the Editor and savin in the database.

    Code for OnClientClose is below :

    sScript.Append("function OnClientClose(radWindow){if(radWindow.argument){alert(radWindow.argument.content);document.getElementById('" + hfPropertyChanged.ClientID + "').value = radWindow.argument.content;__doPostBack('" + hfPropertyChanged.UniqueID + "','');}}"); 
                Telerik.Web.UI.RadScriptManager.RegisterClientScriptBlock(this.Page, this.Page.GetType(), "OnClientClose", sScript.ToString(), true); 

    The problem is :
    When i type normal text without any formatting like making it bold,underline etc i am  ABLE to get the value.
    But when i add the Bold, underline etc it FAILS with error:

    Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occured while processing the request on the server. The status code returned from the server was: 500

    I am unable to figure out the problem. What i think is it is not able to parse html tags like "<,>,/" etc thats why its failing to send the content.

    Can you please provide a solution or feedback


  2. Serrin
    Serrin avatar
    286 posts
    Member since:
    Sep 2008

    Posted 22 Oct 2008 Link to this post

    Hi Huzefa,

    Generally this problem comes from trying to move un-encoded data around, it doesn't like when you try to move data that has markup tags.  Normally I only encounter this on the server side, so I can use htmlencode/htmldecode to modify the code for safe transmission in my code-behind.

    Anyone have any clue how to do this in javascript?  Google isn't being very forthcoming today. ;D
  3. Huzefa
    Huzefa avatar
    4 posts
    Member since:
    Oct 2008

    Posted 23 Oct 2008 Link to this post


    I am not sure how to use htmlencode/htmldecode on server side though... As stated i was able to do away with this problem by using this :

    var oValue = editor.get_html(false); //get the HTML content 
    oValue = oValue.replace(/</ig,"&lt;"); 
    oValue = oValue.replace(/>/ig,"&gt;"); 

    I just replaced all the < with its equivalent &lt; and all the > with its equivalent &gt;

    But what now i am facing is when i put content in the label control its not able to recognize the html content. Like when i set the text property of Label to the content returned from editor it dispays as it is
    eg Text : Hello and if i bold it then the html would be

    This same Text is displayed in the Label as
    which means its not able to recognize the html tags and again when i pass this text to editor I put text value into session variable and pass it to editor
    then use this code :

    if (Session["Content"] != null
         //Control ctr = (Control)Session["Content"]; 
         ReditorGc.Content = ((Label)Session["Content"]).Text; 

    and in the editor the text is displayed as it is like <STRONG>Hello</STRONG>

    Why is it not able to recognoze the html tags ?
    What should be done to make it right ?

    Thank you.
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