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VB.NET Excel

When it comes to report design applications, it is not intended that Microsoft's Excel is a unique show. VB.NET Excel is an application used for table and report design. It has excellent grid control and macro code customization functions. So if you can integrate Excel when designing your own application, then your application should be quite perfect, because Excel provides a very * solution for both editing and printing functions, so what your application needs to do is to achieve communication between the program and Excel.

In fact, you can use VBScript to connect the two VB Excel. The following is a brief introduction to the development of Excel-based programming ideas under VB.

There are roughly five objects that deal with Excel in VB: Application object, WorkBook object, WorkSheet object, Range object, and Cell object. Their functions are as follows:

◆ Application: used to refer to the entire application.

◆ WorkBook: represents a workbook object

◆ WorkSheet: represents a worksheet object. Note that a workbook can contain multiple worksheets, just like a frame window in multiple documents and a single view in it.

◆ Range: represents a range-scoped object in a worksheet or, in special cases, only one Cell.

◆ Cell: represents a cell object for a specific worksheet. The frequency of use of this object is *.

Knowing the scope of the above five objects, it is easy to use them, but you need to declare them before you can use them. The method is to select "Microsoft Excel9.0 Object Library" under the reference dialog box of the Project, so that the entire Excel object library is introduced into the program.

The following is an example of opening a workbook.

Function OpenBook (strFilePath As String) As Boolean 'This procedure checks to see if the workbook' specified in the strFilePath argument is open. ' If it is open, the workbook is activated. If it is' not open, the procedure opens it. Dim wkbCurrent As Excel.Workbook Dim strBookName As String On Error GoTo OpenBook_Err 'Determine the name portion of the strFilePath argument. StrBookName = NameFromPath (strFilePath) If Len (strBookName) = 0 Then Exit Function If Workbooks.Count > 0 Then For Each wkbCurrent In Workbooks If UCase$ (wkbCurrent.Name) = UCase$ (strBookName) Then wkbCurrent.Activate Exit Function End If Next wkbCurrent End If Workbooks.Open strBookName OpenBook = True OpenBook_End: Exit Function OpenBook_Err: OpenBook = False Resume OpenBook_End End Function Thank you for reading! This is the end of the article on "how to use VB.NET Excel". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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