Problems with class TextSearchResults and FindAll method.

[Jose Antonio]

Hi, im having some problems using TextSearchResults and FindAll. Here is part of my code:

private List<Syncfusion.Windows.Controls.RichTextBoxAdv.TextSearchResult> searchResults = new List<Syncfusion.Windows.Controls.RichTextBoxAdv.TextSearchResult>();

foreach (var term in searchTerms)

{

    string normalizedTerm = RemoveDiacritics(term);

    string regexPattern = GenerateDiacriticInsensitiveRegex(normalizedTerm);

    TextSearchResults results = richTextBoxAdv.FindAll(new Regex(regexPattern, RegexOptions.IgnoreCase), FindOptions.None);

    if (results != null && results.Count > 0)

    {

        for (int i = 0; i < results.Count; i++) {

            var result = results[i]; // Acceder al resultado por índice

            if (result.Start != null && result.End != null)

            {

                searchResults.Add(result);

                TextPosition start = result.Start;

                TextPosition end = result.End;

                richTextBoxAdv.Selection.Select(start, end);

                richTextBoxAdv.Selection.CharacterFormat.HighlightColor = HighlightColor.Turquoise;

            }

        }

    }

}

What I'm doing is I'm trying to search for more than one search term in my document. First, I use findAll with a regex to look for my first searchTerm, then I save those results in my List named searchResults.  You can see the contents of this list in the first iteration in one of the attached images. As you can see in said image, I have all the information properly inserted in my List (start, end and text).

The problem comes when we get into the second iteration. When I do exactly the same process, the results I previously inserted in my searchResultsList are now gone and only the latter remains. As you can see in the second image.

I've tested it and the previous results disappear when executing the findAll method for the second term. 

Why is this happening? Is this a bug or a mistake on my part? 

Thank you in advance, Jose Antonio.

Attachment: sfImages_eb1de912.zip

[Kalaivannan Ganesan]

Jose Antonio, we attempted to reproduce the issue you reported using the details you provided, but we were unable to do so.

In our testing, we loaded the document and searched all occurence for three texts using a Regex pattern. All three words were successfully found and highlighted, and the details of each search result were stored in the collections without missing.

We have attached a sample application and a video illustration of our attempts. If you continue to experience the issue, please modify the application provided to demonstrate the problem on our side. This will assist us in reproducing the issue, validating it, and providing you with a solution as soon as possible.

Attachment: SfRichTextBoxAdv_FindAll_4c4eaf3c.zip

[Jose Antonio]

Hi Kalaivannan,

I've reproduced my issue in your sample application without making any modifications. I've also attached a video illustrating the problem.

As you can see, when I start adding occurrences of the second term to my list, the values of the previous term— which I had already stored—disappear. Finding and highlighting have never been the issue, but I need to retain the information in  searchList to use it in another method.

Thanks again,
Jose Antonio

Attachment: RE_SfRichTextBoxAdv_FindAll_4c4eaf3c_40ac0320.zip

[Kalaivannan Ganesan]

Jose Antonio, we have reproduced the reported issue where the `TextSearchResults` of a previous search are missing when finding all occurrences of a subsequent text in the `SfRichTextBoxAdv` control. 

SfRichTextBoxAdv Behaviour: This control operates at the UI level and can only find all occurrences of one text string at a time. When a new search is initiated for another text, the results of the previous search are disposed of because they should not be retained. Subsequently, a fresh search operation is performed for the new text and shows the latest search results in the search panel.

If the previous results were also maintained while searching for new text, both the previous and current search results would be shown in the search panel.

In your implementation, you're using the backend code of this functionality. This means that when you search for a new text, the previous results are cleared due to the functionality of the SfRichTextBoxAdv. Once these results are disposed of in the SfRichTextBoxAdv control, they are also removed from your collection.

Solution: If you plan to use these search results for other functionalities, we recommend processing them immediately before initiating a new search. This approach will ensure that the data is utilized before being cleared.