- The string to search for.
The zero-based index of the first item found; returns -1 if no match is found, or 0 if the s parameter specifies string.Empty.
The search performed by this method is not case-sensitive. The s parameter is a string to compare against the text associated with the items in the combo box list. The search looks for a match starting from the beginning of the text, returning the first item in the list that matches the specified substring. You can then perform tasks, such as removing the item that contains the search text using the System.Windows.Forms.ComboBox.ObjectCollection.Remove(object) method or changing the item's text. Once you have found the specified text, if you want to search for other instances of the text in the System.Windows.Forms.ComboBox, you must use the version of the ComboBox.FindStringExact(string) method that provides a parameter for specifying a starting index within the System.Windows.Forms.ComboBox. If you want to perform partial word search instead of an exact word match, use the ComboBox.FindString(string) method.