DataGridView行过滤器不适用

Question

我有一个DataGridView1，我正在尝试使用行过滤器对其进行过滤。 我也有一个字符串：SomethingHere

我有一个FilterString，它以以下格式用作字符串：

 Dim DGVDV As New DataView
 Using iConn As New OleDbConnection(ConnString)
      Using iDA As New OleDbDataAdapter(iSelectString, Conn)
           iDA.MissingSchemaAction = MissingSchemaAction.AddWithKey
           iDA.FillSchema(DS.Tables("Table"), SchemaType.Source)
           iDA.Fill(DS.Tables("Table"))
           iBS.DataSource = DS.Tables("Table")
           DGVDV = DS.Tables("Table").DefaultView

           With DataGridView1
                .DataSource = iBS
           End With
      End Using
 End Using





 DGVDV = DS.Tables("Table").DefaultView
 DGVDV.RowFilter = FilterString

为了证明它能正常工作，我在下面进行了说明：

 Msgbox("Filter: " & DGVDV.RowFilter.ToString)

仅当FilterString为以下格式时，才会触发此消息框：

 FilterString = "[Status] = '" & SomethingHere & "'"

但是，行过滤器似乎忽略了以下两个字符串：

 FilterString = "([Status] = '" & CMBFilter & "')" & " AND ([ID] LIKE '%" & SomethingHere & "%' OR [Name] LIKE '%" & SomethingHere & "%')"

 FilterString = "([ID] LIKE '%" & TextFilter & "%' OR [Name] LIKE '%" & TextFilter & "%')"

我尝试了谷歌搜索，但我只是想不出问题所在。

    If CMBBool = True And TextBool = False Then
        FilterString = "[Status] = '" & CMBFilter & "'"
    ElseIf CMBBool = False And TextBool = True Then 
        FilterString = "([ID] LIKE '%" & TextFilter & "%' OR [Name] LIKE '%" & TextFilter & "%')"
        MsgBox(FilterString)
    ElseIf CMBBool = True And TextBool = True Then
        FilterString = "([Status] = '" & CMBFilter & "')" & " AND ([ID] LIKE '%" & TextFilter & "%' OR [Name] LIKE '%" & TextFilter & "%')"
        MsgBox(FilterString)
    ElseIf CMBBool = False And TextBool = False Then
        FilterString = String.Empty
    End If
    DGVDV.RowFilter = FilterString
    MsgBox("Filter: " & DGVDV.RowFilter.ToString)

当FilterString如下

 FilterString = "[Status] = '" & CMBFilter & "'"

Msgbox弹出。 对于其他FilterString，没有Msgbox弹出，使我怀疑FilterString从未应用于行过滤器。

有人可以帮忙吗？

Answer 1

使用这种格式可以：

DataView.RowFilter = string.Concat("CONVERT(", COLUMNNAME,",System.String) LIKE '%", TEXTBOXorSTRING, "%'")