excel vba data types

You can create 4 auto-run macros in standard modules in Excel, which are Auto_Open (run automatically when you open the workbook), Auto_Close, Auto_Activate, Auto_Deactivate. These autorun macros are reserved for compatibility with EXCEL5 and 95. You can now replace them with the Open,close,activate,deactivate event of the workbook.So, what is a "standard module"? In fact, the module we inserted in the VBE, Microsoft called it a "standard module." Whi

IamlaosongWhen the Excel file is processed with VBA, the column number of the keyword segment is often not known when programming. Need to know by the number of parameters, so. When we program, we cannot use this statement to take a valid number of rows:Lineno = [B65536]. End (Xlup). Row ' find valid rows from bottom to topThe column name "B" in the above statement is assumed to be a variable. Can be implem

Empty.The storage space of the Variant numeric type is 16 bytes. Its value range is the same as that of the Double data type. The default value is Empty.(For more information about Variant data types, see a series of articles later .)(13) user-defined typesAllows users to create a special data type, which is composed

into Excel (two for loops are used here. When the row in the table is small and the column is small, but when there are many rows, the speed will be very slow, I tried to use 25,000 computers for minutes) For (INT I = 0; I { For (Int J = 0; j { Worksheet. cells [I + 2, J + 1] = maid [I] [J]. tostring (); } } Try { // Save the Excel file Workbook1.saved = true; Workbook1.savecopyas ("F: \ www.xlsx "); }

the following statement:Vbapp. Bookexcel.close ()' close Excel table vbapp.quit ()' destroy Excel.exe process Nothing ' Releasing object variablesAs we can see, when we write VBA code in Excel, we strictly use the complete expression to represent the object exactly, and we use the variable Vbapp to call "Application" when porting the code.Third,

Tags: convert sele record + + NEC Xtend out led jpgIt is very efficient to use microsoft.jet.oledb.4.0 to connect to Excel, to read data, and to read data relative to traditional COM. But relative to traditional COM operations Excel, and the existence of data type conversion

Tags: style blog http color os using IO ar for a complete solution to the problem of OLE DB connection Excel data type not uniform It is very efficient to use microsoft.jet.oledb.4.0 to connect to Excel, to read data, and to read data relative to traditional COM. But relati

Connectionstring = "provider = Microsoft. Jet. oledb.4.0;"; // Needless to say Connectionstring + = "Data source=xxx.xls;"; // same as above Connectionstring + = "extended properties = 'excel 8.01; HDR = YES2; IMEX = 13 ';" // Note:1: Excel 8.0 for Excel 2000 or later; Excel