Hello,
I didn't find the best solution but I found a easy one. I didn't find any methods in TextEditorControl API that allow to find a string in the associated file and then select the line that contains this string. But I find the method JumpTo in the TxtAreaControl that allow me to select a specific line. As I save the line number in witch the string I search is, the code is simple. This is a exemple of my source code:
TextAreaControl
txtAreaControl = dropEditor.TextEditor.ActiveTextAreaControl;
// myLine is a integer containing the line number where the occurrence of the searching string is.
txtAreaControl.JumpTo(myLine - 1);
Rakoun
/°\
Pa konèt mové, dèyè do sé on péyi.