有麻烦的DevExpress GridControl和导入Excel文件

我导入Excel文件GridControl在的DevExpress我有没有问题导入Excel文件网格控制，但是当我将列添加到我的GridControl然后尝试导入我的excel文件，它将覆盖那些列，有麻烦的DevExpress GridControl和导入Excel文件

我也试过用CustomColumnUnBoundData事件从GridView的，它似乎工作，并添加未绑定列时，它不会覆盖列，但在点击按钮创建两个c由于某些原因，列名为[NAME]并查询行值两次。

VB示例：

Private Sub SimpleButton2_Click(sender As System.Object, e As System.EventArgs) Handles SimpleButton2.Click, GridView1.DataSourceChanged 
     OFD.ImportMe(GridControl1, TextEdit1) 
     view = GridControl1.MainView 
     'Dim Columns As GridColumn 
     GridColumn1 = GridView1.Columns.AddField("NAME") 
     GridColumn1.VisibleIndex = view.Columns.Count 

    End Sub 

    Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load 

    End Sub 

    Private Sub GridView1_CustomUnboundColumnData(sender As Object, e As DevExpress.XtraGrid.Views.Base.CustomColumnDataEventArgs) Handles GridView1.CustomUnboundColumnData 
     Dim Fields() As String = {"NAME", "DESCRIPTION", "STOCK", "ORDERED"} 

     GridColumn1.VisibleIndex = GridView1.Columns.Count - 1 
     For i As Integer = 0 To GridView1.Columns.Count 

      If e.Column.FieldName = Fields(0) AndAlso e.IsGetData Then 
       e.Value = e.ListSourceRowIndex 
      End If 
      ' OFD.Listing(e.ListSourceRowIndex) 
     Next 
    End Sub

我建立了一个不同的类连接：

类VB：

Public Function openMe(ByVal path As TextEdit) 

     Dim ofd As New OpenFileDialog 
     ofd.Filter = "Excel Files (*.xls)|*.xls|All Files (*.)|*.*" 

     If ofd.ShowDialog() = DialogResult.OK Then 
      path.Text = ofd.FileName 
     End If 
     Return 0 
    End Function 

    Public Function ImportMe(ByVal gc As GridControl, ByVal file As TextEdit) 

     Dim Connect As OleDbConnection 
     Dim Command As OleDbDataAdapter 
     Dim con As String 

     con = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + file.Text + ";Extended Properties=Excel 8.0" 

     Connect = New OleDbConnection(con) 
     Command = New OleDbDataAdapter("Select * from [Sheet1$]", Connect) 
     DD = New DataSet() 

     Command.Fill(DD) 
     gc.DataSource = DD.Tables(0) 
     Connect.Close() 
     Return DD 
    End Function 

    Public Function Listing(ByVal sender As Object, ByVal listSource As Integer) 
     Dim DR As DataRow = DD.Tables("NAME").Rows(listSource) 
     Return DR 
    End Function

我道歉了很长的帖子我只是不我不知道是什么触发了这个事件，所以我不得不彻底解释它。谢谢

来源

2016-07-23 Ivan Lorenzo

Excel中的列和列的名称是否相同？ –

如果您的网格在设置其datasouce时没有列，网格将自动生成GridColumns。您可以将GridView.OptionsBehavior.AutoPopulateColumns设置为false以避免此行为。

来源

2016-07-25 12:01:46 Kinetic

有麻烦的DevExpress GridControl和导入Excel文件

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