C＃查找替换单词

Question

I recently started learning C#. I'm trying to write some of my macros (written in VBA) in C# - actually I'm trying to make a new ribbon for Word with buttons doing some activities... So, I'm trying to make a button doing simple find/replace in active document. I copied this code from Microsoft site, but it keeps underlining word MISSING:

public void button1_Click(object sender, RibbonControlEventArgs e){
        Word.Find findObject = Globals.c_sharp.Application.Selection.Find;
        findObject.ClearFormatting();
        findObject.Text = "find me";
        findObject.Replacement.ClearFormatting();
        findObject.Replacement.Text = "Found";

        object replaceAll = Word.WdReplace.wdReplaceAll;
        findObject.Execute(ref missing, ref missing, ref missing, ref missing, ref missing,
            ref missing, ref missing, ref missing, ref missing, ref missing,
            ref replaceAll, ref missing, ref missing, ref missing, ref missing);
    }

What's the problem here?

Answer 1

Type.Missing is needed in older versions of C#. In current versions, it can be simplified:

Globals.c_sharp.Application.ActiveDocument.Content.Find.Execute("find me", 
               Format: false, ReplaceWith: "Found", Replace: Word.WdReplace.wdReplaceAll);