Hyperlink Find and Replace

GemBox.Document
1

I’m trialing GemBox.Document for a specific task as an in-house path updater for our stored and archived documents.

Initially, I would like it simply to find->replace hyperlinks in our documents. I ran into an issue where I can get the hyperlink.Content to update but the hyperlink.Address does not.

The example I have created:
Assuming links in doc are Google | http://www.google.com
replacing with Microsoft | http://www.microsoft.com

using GemBox.Document;

private void SaveLink("file-to-open.docx")
{
    ComponentInfo.SetLicense("FREE-LIMITED-KEY");

    var document = DocumentModel.Load("file-to-open.docx");
    Hyperlink[] doclinks = document.GetChildElements(true, ElementType.Hyperlink).Cast<Hyperlink>().ToArray();

    foreach (var hyperlink in doclinks)
    {
        if (hyperlink.Address == "http://www.google.com/")
        {
            Hyperlink newlink = new Hyperlink(document, "http://www.microsoft.com/", "Microsoft");

            //works
            hyperlink.Content.Replace(hyperlink.Content.ToString(), newlink.Content.ToString());
            //does not work
            hyperlink.Address.Replace(hyperlink.Address, newlink.Address);

            /* Also tried this below. Will update 'Content' but not address if is hyperlink.
             * But as expected if finds the non-hyperlink word 'Google' will replace with 'Microsoft AND will make it a link */
            foreach (ContentRange searchedContent in document.Content.Find(hyperlink.Content.ToString()).Reverse())
            {
                Hyperlink newlink = new Hyperlink(document, "http://www.microsoft.com/", "Microsoft");
                searchedContent.Set(newlink.Content);
            }

            document.Save("newfile.docx");
        }
    }
}

Any direction would be appreciated

2

Hi Ron,

The method you commented with “works” is ContentRange.Replace, and the method you commented with “does not work” is String.Replace.
The String objects are immutable, the Replace method returns a new String object.

Anyway, can you please try this:

if (hyperlink.Address == "http://www.google.com/")
{
    hyperlink.DisplayInlines.Content.LoadText("Microsoft");
    hyperlink.Address = "http://www.microsoft.com/";
}

Does this solve your issue?

As an FYI, the reason why that “searchedContent” replacement didn’t work is because that is a display inline of a parent hyperlink.
Instead, you would need to use something like this:

Hyperlink newlink = new Hyperlink(document, "http://www.microsoft.com/", "Microsoft");
hyperlink.Content.Set(newlink.Content);

However, note that newlink will have the default formatting while the original hyperlink might have something else.
So in short, you’re replacing the previous hyperlink with a new one that has a default style.
But in the first example, the LoadText will use the previous formatting when loading the new text.

Regards,
Mario

3

That was great, thank you. I am putting together a proof of concept for purchase for management.