Question

所以基本上我创建了7列[Particular] ,[Category] ,[Warranty] ,[Name] [Description] ,[Stocks],[Orders] [Particular] ,[Category]和[Warranty]列是使用DataTable创建的，并且位于Form_load Event

Dim tbl As New DataTable
        tbl.Columns.Add("Particular")
        tbl.Columns.Add("Category")
        tbl.Columns.Add("Warranty")
        tbl.Rows.Add("Select Particular", "Select Category", "Select Warranty")
        GridControl.DataSource = dtbl

使用UnBoundColumnData创建剩余的4列此列将接收我要导入的Excel文件

我如何创建列，也可以位于Form_Load event

Dim Fields() As String = {"NAME", "DESCRIPTION", "STOCK", "ORDERED"}
        Dim View As ColumnView = GridControl1.MainView
        Dim gc3 As New GridColumn
        For i As Integer = 0 To Fields.Length - 1
            gc3 = GridView1.Columns.AddField(Fields(i))
            gc3.VisibleIndex = View.Columns.Count
            gc3.UnboundType = UnboundColumnType.String
        Next

然后我为特殊类别保修列创建了RepositoryItemComboBox，并且位于GridView1_CustomRowCellEdit Event

内

 Dim rcb As RepositoryItemComboBox
        rcb = New RepositoryItemComboBox
        rcb.Items.Add("AA")
        rcb.Items.Add("BB")
        rcb.Items.Add("CC")
        GridView1.Columns("Particular").ColumnEdit = rcb

这会填充特定列并生成ColumnEdit = RepositoryItemComboBox

现在，当我加载表单而不导入Excel文件时，[Particular]列中的值即使在我聚焦到不同的行时也会保留。但是当我开始导入excel文件然后尝试从RepositoryItemComboBox中选择一个项目时它会在我关注不同的行时清除值

我真的需要一些帮助，因为我不知道如何保持这些价值观。谢谢

Answer 1

从Excel加载数据后，您必须添加未绑定的列。

private void FillExcelToGrid() {
   var tbl = GetExcelAsDataTable(); // this method wraps your existing code, you return the datatabele
   tbl.Columns.Add("Particular")
   tbl.Columns.Add("Category")
   tbl.Columns.Add("Warranty")

   for (var ii = 0; ii < tbl.Rows.Count; ii++) {
     tbl.Rows[ii]["Particular"] = "Select Particular";
     tbl.Rows[ii]["Category"] = "Select Category";
     tbl.Rows[ii]["Warranty"] = "Select Warranty";
   }
   GridControl.DataSource = tbl;
}

RepositoryItemComboBox清除项目不在焦点时

1 个答案: