asp.net - 将 Gridview 导出到 Excel，并将行格式化为文本

Question

我在网上阅读了一些教程，但似乎遗漏了一些东西。我试图通过将格式设置为文本来让前导 0 显示在列中。

如有任何建议，我们将不胜感激。

    ''' <summary>
    ''' This is required for the grid view to export properly
    ''' </summary>
    ''' <param name="control"></param>
    ''' <remarks></remarks>
    Public Overrides Sub VerifyRenderingInServerForm(ByVal control As System.Web.UI.Control)
    End Sub

    Protected Overrides Sub OnInitComplete(ByVal e As System.EventArgs)

            Dim List As System.Web.UI.WebControls.GridView = CType(Page.FindControl("List"), System.Web.UI.WebControls.GridView)
            AddHandler List.RowDataBound, AddressOf RowDataBound

            List.DataSource = myList
            List.DataBind()

            Response.Clear()
            Response.ContentType = "application/vnd.ms-excel"
            HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=ExportList.xls")

            Response.Write("<style> .text {mso-number-format:\@; } </style>")

            Using strwriter As New System.IO.StringWriter
                Using htmlwriter As New HtmlTextWriter(strwriter)

                    List.RenderControl(htmlwriter)

                    HttpContext.Current.Response.Write(strwriter.ToString)
                    HttpContext.Current.ApplicationInstance.CompleteRequest()
                End Using
            End Using

    End Sub

    Protected Sub RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs)

        If e.Row.RowType = DataControlRowType.DataRow Then

            e.Row.Cells(0).Attributes.Add("class", "text")

            Dim dtview As System.Data.DataRowView
            Dim dt As DateTime
            Dim intCounter As Integer

            dtview = e.Row.DataItem

            For intCounter = 0 To dtview.Row.ItemArray.Length - 1

                If TypeOf dtview.Row.Item(intCounter) Is System.DateTime Then
                    dt = dtview.Row.Item(intCounter)
                    e.Row.Cells(intCounter).Text = dt.ToLongDateString
                End If

            Next
        End If

    End Sub

Answer 1

有一种更好的方法可以达到相同的结果，只需添加一行即可。而不是创建样式表并为所有<TD>添加属性使用循环的标签，直接在所有TD标签上应用样式。

string style = @"<style> TD { mso-number-format:\@; } </style>";