主题：在导入数据过程中对话框总是消失不了，我想换成正在加载中，怎么弄？

Dim js1 As Integer = Tables("学生信息表").Rows.Count

Forms("主界面").Open()
MainTable = Tables("主界面")

Dim dlg As new OpenFileDialog
dlg.Filter= "Excel文件|*.xls"
If dlg.ShowDialog = DialogResult.Ok Then
    application.DoEvents
    Dim Book As New XLS.Book(dlg.FileName)
    Dim Sheet As XLS.Sheet = Book.Sheets(0)
    StatusBar.Message1= "正在统计"
    StatusBar.ProgressBar.Maximum = sheet.Rows.Count
    StatusBar.ProgressBar.Minimum = 0
    StatusBar.ProgressBar.Visible =True
    application.DoEvents
    If sheet(0,0).text <> "序号" Or sheet(0,1).text <> "学校代码" Or sheet(0,2).text <> "学校名称" Or sheet(0,3).text <> "班代码" Then
        MessageBox.Show("您的数据源不符合国家开放大学报表平台的数据格式,不能导入学生信息表数据!", "提示")
    Else
        DataTables("学生信息表").StopRedraw
        DataTables("学生信息表").DataCols("照片").DefaultFolder = ProjectPath & "\证件照片"
        For i As Integer  = 1 To sheet.Rows.Count -1
            Dim dr As DataRow = DataTables("学生信息表").find("学号 = '" & sheet(i,0).text & "'")
            If dr IsNot Nothing Then
                dr("学籍状态") = sheet(i,9).text
            Else
                dr = DataTables("学生信息表").AddNew()
                dr("序号") = sheet(i,0).text
                dr("学校代码") = sheet(i,1).text
                dr("学校名称") = sheet(i,2).text
                dr("班代码") = sheet(i,3).text
                dr("班名称") = sheet(i,4).text
                dr("姓名") = sheet(i,5).text
                dr("学号") = sheet(i,6).text
                dr("性别") = sheet(i,7).text
                dr("学籍状态") = sheet(i,8).text
                dr("出生年月") = sheet(i,9).text
                dr("学生类型代码") = sheet(i,10).text
                dr("学生类型") = sheet(i,11).text
                dr("民族") = sheet(i,12).text
                dr("身份证号") = sheet(i,13).text
                dr("专业代码") = sheet(i,14).text
                dr("专业名称") = sheet(i,15).text
                dr("入学年度") = sheet(i,16).text
                dr("学期") = sheet(i,17).text
                dr("规则号") = sheet(i,18).text
                dr("入学前专业所属学科门类代码") = sheet(i,19).text
                dr("原毕业时间") = sheet(i,20).text
                dr("毕业学校") = sheet(i,21).text
                dr("原专业名称") = sheet(i,22).text
                dr("文化程序") = sheet(i,23).text
               
            End If
            dr("照片") = dr("身份证号") & ".jpg"
            If FileSys.FileExists(DataTables("学生信息表").DataCols("照片").DefaultFolder & "\" & dr("照片")) = True Then
                dr("是否有照片") = True
            End If
            Dim s As String = dr("班名称")
            If s.Contains("4200311") Then
                dr("班名称中文") = s.SubString(0,s.Length - 15)
            Else
                dr("班名称中文") = dr("班名称")
            End If
           
            StatusBar.ProgressBar.Value = i
            StatusBar.Message2= Math.Ceiling(i/sheet.Rows.Count * 100) & "%"
            application.DoEvents
        Next
        DataTables("学生信息表").ResumeRedraw
    End If
   
End If

MessageBox.Show("祝贺你!本次共成功导入" & js3 & "人!")
MainTable = Tables("学生信息表")

什么意思？什么图

1、不要永远要别人帮你写完全部的代码；导入参考 http://www.foxtable.com/help/topics/2492.htm

2、参考 http://www.foxtable.com/help/topics/0639.htm