Programmatically check spelling in documents

To check the spelling in a document, use the CheckSpelling method. This method returns a Boolean value that indicates whether the supplied parameter is spelled correctly.

Applies to: The information in this topic applies to document-level projects and VSTO Add-in projects for Word. For more information, see Features available by Office application and project type.

1. Call the CheckSpelling method and pass it a range of text to check for spelling errors. To use this code example, run it from the ThisDocument or ThisAddIn class in your project.

   • C#
   • VB

   string result = "Spelled incorrectly.";
   
   object startLocation = this.Content.Start;
   object endLocation = this.Content.End;
   bool spellCheck = this.Application.CheckSpelling(
       this.Range(ref startLocation, ref endLocation).Text);
   
   if (spellCheck == true)
   {
       result = "Spelled correctly.";
   }
   
   MessageBox.Show(result);
   

• How to: Programmatically define and select ranges in documents
• Optional parameters in Office solutions