For Each dt As DataTable In DataTables
dt.Load()
Next
'Dim dr3 As DataTables("库存明细").Select("VT_Spessore > 0").Count
If DataTables("库存明细").Select("VT_Spessore > 0").Count>10 Then
DataTables("原片仓库").DeleteFor("[读取时间] = #" & Date.Today & "#")
For Each dr1 As DataRow In DataTables("库存明细").Select("VT_Spessore > 0")
Dim dr2 As DataRow = DataTables("原片仓库").AddNew()
For Each dc As DataCol In DataTables("库存明细").DataCols
dr2(dc.Name) = dr1(dc.name)
Next
Next
DataTables("原片仓库").Save()
Else
MessageBox.Show("没有读取数据!")
End If
DataTables("原片内库存总计").Load()
老师我执行的就是这段程序,请问老师我怎么在代码中加入一个提示,比如说正在执行,请等待,否则可以用户以为程序死掉了。