I want to use spaces instead of tabs. I found this SO post that seems to address the issue. I used the accepted answer, but I'm still having a problem. If I hit the tab key at the beginning of a line that starts with non-spaces, the tabbing works correctly. However, if I click anywhere on a line past the IndentWidth and hit the tab key, it tabs up to 8 spaces.
E.g.
My IndentWidth is 2. My text is ABCDEFGHI. I'm using periods to represent spaces.
If I click in front of the A and hit tab, my text becomes ..ABCDEFGHI (this is correct)
If I click in front of the B and hit tab, my text becomes A.BCDEFGHI (this is correct)
If I click in front of the C and hit tab, my text becomes AB......CDEFGHI (this is NOT correct)
Also, if the cursor is anywhere in the leading spaces of a line, when I hit the tab key, the cursor moves to the first non-space character, and then tabs from there.
E.g.
My IndentWidth is 2. My text is ....WXYZ. I'm using periods to represent spaces.
If I click anywhere in the first four spaces and hit tab, the cursor moves to the W and then my text becomes ........WXYZ. (this is NOT correct)
UPDATE
I neglected to mention that I had specifically set the Indentation properties in code as below:
scintilla.Indentation.ShowGuides = true;
scintilla.Indentation.IndentWidth = 2;
scintilla.Indentation.TabIndents = true;
scintilla.Indentation.UseTabs = false;
I just tried setting the IndentWidth to 2 in the property editor at design time, and now it seems to be working correctly.
Conclusion: There is some disjoin between how the editor behaves when the properties are set at design-time vs. run-time.
