Making sure the RadRichTextBox has finished loading and processing the document

[Oliver]

Is there definitive way for making sure the RadRichTextBox has finished loading and processing the document? And by that I mean that DocumentContentChanged events are fired anymore without user interaction.

[Ivailo Karamanolev]

Hello Oliver,

DocumentContentChanged is a relatively special event. It is not fired when the change happens, but instead the change triggers a timer which dispatches the event with a delay. This is done to ease the development in cases where heavy computation happens in the event handler. The delay is controlled by the DocumentContentChangedInterval property. This means that you cannot know precisely when it will be fired.

Regards,
Ivailo
the Telerik team

[xusan Rahimov]

Hi team,

I need your help, I want to replace some tokens in my document with some words from my appSetting in loading stage(in runtime), for example initialy word document contains the following text:

Birthday on token2, token3

Person: token1

token5, token6token7

token8

After replace it should look like this:

Birthday on 22.12.1999, 22:00

Person: Lokesh Samandar

Program, 40days

Jared

I used your replace api as described in Documentation API but it works correct when document is loaded, but when I use it in loading document/in runtime some tokens is not replaced correctly and sometime I get NullReference exception

You can try to reproduce it, just call replace method after word document is imported:
            RadDocument doc = null;
            using (System.IO.Stream fileStream = stream)
            {
                IDocumentFormatProvider docxProvider = new DocxFormatProvider(); 
                doc = docxProvider.Import(fileStream);
                fileStream.Close();
                this.editor.Document = doc;
            }
            //Replace all tokens
            ReplaceAllMatches("token1", "Firtst");
            ReplaceAllMatches("token2", "Second");
            ReplaceAllMatches("token3", "Third");
            ReplaceAllMatches("token4", "Fourth");
            ReplaceAllMatches("token5", "Fiveth");
            ReplaceAllMatches("token6", "Sixth");
            ReplaceAllMatches("token7", "Seventh");
            ReplaceAllMatches("token8", "Eghtyth");

Can you please send me some advise or code to help replace all tokens in runtime/in loading stage?

Thanks in addvance
Khasan

[Iva Toteva]

Hi Khasan,

In the previous versions of the control, RadRichTextBox's document had to be measured and arranged before some operations could be performed on it. The document is measured by the framework when it is shown on screen, but if you need to perform some modifications before that, you had to manually invoke the following method:

public void MeasureAndArrangeInDefaultSize(RadDocument document)
{
    document.Measure(RadDocument.MAX_DOCUMENT_SIZE);
    document.Arrange(new RectangleF(PointF.Empty, document.DesiredSize));
}

Could you try invoking this method after loading the document and before invoking the ReplaceAllMatches method and let us know if it does not help.

On a side note, in Q2 2011 we introduced merge fields, which should be able to fit your scenario much better than the programmatic find and replace. You can preview them in our online Telerik Demo, using the buttons in the Mailings tab of the ribbon UI. As you can see by switching to the Source tab in the top-right corner, the buttons are bound to commands of the editor, but there are also respective methods for inserting merge fields, updating the state of the merge field, etc. You should also note how the mail merge data source is set:

this.editor.Document.MailMergeDataSource.ItemsSource = new 
ExamplesDataContext().Employees;

Then, you can insert merge fields in the following way:

this.editor.InsertField(newMergeField() { PropertyPath = "FirstName"});

provided that the Employee class has a FirstName property.

All the best,
Iva
the Telerik team

[xusan Rahimov]

Hi Iva,

Thanks for help, I invoked this method and it resolved my problem.

Thanks
Khasan