你datacolchanged事件影响了
Dim dlg As New OpenFileDialog
dlg.MultiSelect = True
dlg.Filter= "数据库文件|*.dbf;*.xls;*.xlsx|全部|*.*"
If dlg.ShowDialog = DialogResult.OK Then
systemready = False
For Each fl As String In dlg.FileNames
If fl.ToLower.EndsWith(".dbf") Then
Dim wjm As String = FileSys.GetName(fl)
Dim mg As New Merger
mg.SourcePath = FileSys.GetParentPath(fl) '指定数据文件所在目录
mg.Format = "dbase" '指定格式
mg.SourceTableName = wjm '指定要合并的dbase文件,无需扩展名
mg.DataTableName = "成绩库" '指定接收数据的表
mg.Merge() '开始合并
Else If fl.ToLower.EndsWith(".xls") Then
Dim Book As New xls.Book(fl)
For Each Sheet As xls.Sheet In Book.Sheets '引用新增加的工作表
Dim mg As New Merger
mg.SourcePath = fl '指定数据文件所在目录
mg.Format = "excel" '指定格式
mg.SourceTableName = sheet.Name & "$"
mg.DataTableName = "成绩库" '指定接收数据的表
mg.Merge() '开始合并
Next
Else If fl.ToLower.EndsWith(".xlsx") Then
Dim Book As New xls.Book(fl)
For Each Sheet As xls.Sheet In Book.Sheets '引用新增加的工作表
Dim mg As New Merger
mg.SourcePath = fl '指定数据文件所在目录
mg.Format = "excel2007" '指定格式
mg.SourceTableName = sheet.Name & "$"
mg.DataTableName = "成绩库" '指定接收数据的表
mg.Merge() '开始合并
Next
End If
Next
DataTables("成绩库").DeleteFor("单位 is null")
systemready = True
End If
e.Form.Controls("Label1").Text = "数据导入结束,可以进行分项统计!"