MQL5 ReferenceStandard LibraryStringsCStringAssign StrLenCopyFillAssignAppendInsertCompareCompareNoCaseLeftRightMidTrimTrimLeftTrimRightClearToUpperToLowerReverseFindFindRevRemoveReplace Assign Assigns a string. void Assign( const string str // string ) Parameters str [in] String to assign. Assign Assigns a string from the CString class instance. void Assign( CString* str // pointer ) Parameters str [in] Pointer to the CString class instance to assign. Fill Append