New Post: Conditional Formatting: Color Row

I finally found a solution.
The example for "Using Formulas" induced me to error.

If I use .WhenEquals() doesn't work, I have to use .WhenIsTrue()

Here is how I color a row from A to N depending on the value of M column:

ws.Range("A1:N100").AddConditionalFormat().WhenIsTrue("=$M1=\"Hello\"").Fill.SetBackgroundColor(XLColor.Gray);

And here is how it is shown on Excel:


It works correctly.
Thanks.