How to use gembox to control chexbox in word?

GemBox.Document
1

As title,

I hope to be able to specify the checkbox name in the program and choose whether to check it. I can also specify the change caption through the name.

Picture2
Picture2554×312 69.4 KB

2

Hi,

I’m not sure if you have content controls or legacy form fields, the screenshot isn’t clear.
Nevertheless, I’ll presume that you have content controls, so please try using the following:

var document = DocumentModel.Load("input.docx");

string name = "MyCheckBox1";
var checkbox = document.GetChildElements(true)
    .OfType<IContentControl>()
    .First(contentControl =>
        contentControl.ContentControlType == ContentControlType.CheckBox &&
        contentControl.Properties.Title == name);

checkbox.Properties.Checked = true;

document.Save("output.docx");

Also, please check our Content Controls examples:

Regards,
Mario