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Problem with HtmlTextBox error in Report

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Manuel asked on 20 Dec 2011, 03:15 PM

reportereror.png

Hi there,

In my database I have a field that have html code in a string, like this example:

<!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><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Untitled</title><style type="text/css">
.p_CC664AAA { margin: 0px 0px 12px 0px;text-align: left;text-indent: 0pt;padding: 0px 0px 0px 0px; }
.s_E6FD2046 { font-family: 'Verdana';font-style: Normal;font-weight: normal;font-size: 16px;color: #000000; }
</style></head><body><p class="p_CC664AAA"><span class="s_E6FD2046">assunto 1</span></p></body></html>

So when I try show this in a report using HtmlTextBox control occures one error. Please see the picture.

I read somewhere in this forum, that this happens because the control don´t support chars like < & or > .. This is true?

How workaround?

Thanks

6 Answers, 1 is accepted

answered on 26 Dec 2011, 05:07 PM

Hello Manual,

Please, take a look at the documentation for the HtmlTextBox item. It renders only specific HTML tags and not entire html pages as it is in your case.

As a workaround you can use the WebBrowser control to create a bitmap with the rendered html page and then pass the image to a PictureBox item to display it in a report. You may find useful the Get Bitmap of Web Browser Control in C# discussion about how to achieve this.

Hope this helps.

All the best,
Chavdar
the Telerik team

Q3’11 of Telerik Reporting is available for download. Register for the What's New in Data Tools webinar to see what's new and get a chance to WIN A FREE LICENSE!

Accepted

answered on 26 Dec 2011, 08:21 PM

Hello,

You can use a user function and pass the value of the field as an argument. Consider the following code snippet:

public Report()

{

/// <summary>

/// Required for telerik Reporting designer support

/// </summary>

InitializeComponent();

//

// TODO: Add any constructor code after InitializeComponent call

//

this.pictureBox1.Value = "=GetImage(Fields.CONTEUDO)";

}

public static Image GetImage(string html)

{

return new Bitmap(100, 100);

}

All the best,
Chavdar
the Telerik team

Q3’11 of Telerik Reporting is available for download. Register for the What's New in Data Tools webinar to see what's new and get a chance to WIN A FREE LICENSE!