VSTO学习之路:学习使用Epplus——读写VBA代码
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创建xlsm工作簿:
宏工作簿,必须有VBProject对象,至少要有一个工作表
1 string path = @"E:\studyvs\open xml\test.xlsm"; 2 var package = new ExcelPackage(); 3 package.Workbook.Worksheets.Add("Sheet1"); 4 //创建工程对象 5 package.Workbook.CreateVBAProject(); 6 //保存工作簿 7 package.SaveAs(new FileInfo(path)); 8 System.Windows.Forms.MessageBox.Show("创建成功");
向宏文件写入代码:
1 string path = @"E:\studyvs\open xml\test.xlsm"; 2 var package = new ExcelPackage(); 3 package.Workbook.Worksheets.Add("Sheet1"); 4 //创建工程对象 5 package.Workbook.CreateVBAProject(); 6 //也可以using OfficeOpenXml.VBA 7 OfficeOpenXml.VBA.ExcelVbaProject proj = package.Workbook.VbaProject; 8 //sheet1工作表模块 9 OfficeOpenXml.VBA.ExcelVBAModule sheetmodule =proj.Modules["Sheet1"]; 10 //为sheet1模块命名,和工作表名称一致 11 sheetmodule.Name = "sheet1"; 12 sheetmodule.Code += "\r\nPrivate Sub Worksheet_SelectionChange(ByVal Target As Range)"; 13 sheetmodule.Code += "\r\nMsgBox(\"Test of the VBA Feature!\")\r\nEnd Sub\r\n"; 14 15 16 //工作簿模块 17 OfficeOpenXml.VBA.ExcelVBAModule workbookmodule = package.Workbook.CodeModule; 18 workbookmodule.Name = "workbook"; 19 //给工作簿模块添加代码 20 workbookmodule.Code += "\r\nPrivate Sub Workbook_Open()\r\nsheet1.Cells(1,1).Value = \"VBA test\""; 21 workbookmodule.Code += "\r\nMsgBox \"VBA is running!\"\r\nEnd Sub"; 22 23 //创建一个标准模块 24 var m = package.Workbook.VbaProject.Modules.AddModule("Module1"); 25 m.Code += "Public Sub Test(param1 as string)\r\n\r\nEnd sub\r\n"; 26 m.Code += "Public Function functest() As String\r\n\r\nEnd Function\r\n"; 27 28 //创建两个类模块 29 var c = package.Workbook.VbaProject.Modules.AddClass("Class1", false); 30 c.Code += "Private Sub Class_Initialize()\r\n\r\nEnd Sub\r\nPrivate Sub Class_Terminate()\r\n\r\nEnd Sub"; 31 var c2 = package.Workbook.VbaProject.Modules.AddClass("Class2", true); 32 c2.Code += "Private Sub Class_Initialize()\r\n\r\nEnd Sub\r\nPrivate Sub Class_Terminate()\r\n\r\nEnd Sub"; 33 34 //设置工程的访问密码 35 proj.Protection.SetPassword("EPPlus"); 36 37 //保存工作簿 38 package.SaveAs(new FileInfo(path)); 39 System.Windows.Forms.MessageBox.Show("写入成功");
对于已存在的test.xlsm文件,另存为test2.xlsm
1 string path = @"E:\studyvs\open xml\test.xlsm"; 2 var package = new ExcelPackage(new FileInfo(path)); 3 package.SaveAs(new FileInfo(@"E:\studyvs\open xml\test2.xlsm"));
读取test.xlsm中各个模块的代码,写入文本文件
1 string path = @"E:\studyvs\open xml\test.xlsm"; 2 var package = new ExcelPackage(new FileInfo(path)); 3 foreach (var module in package.Workbook.VbaProject.Modules) 4 { 5 File.WriteAllText(string.Format(@"E:\studyvs\open xml\{0}.txt", module.Name), module.Code); 6 } 7 8 System.Windows.Forms.MessageBox.Show("ok");
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