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| meta content= text/html and gridview export to excel |
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| 資料匯出 |
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| 由於是meta content= text/html 格式，所以報錯 |
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| 格式與網頁一樣 |
.ASP
......................
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Button ID="btnExport" runat="server" Text="匯出" Font-Size="X-Large" Width="100px" />
<asp:GridView ID="GridView1" runat="server" />
</ContentTemplate>
<triggers>
<asp:postbacktrigger controlid="btnExport" />
</triggers>
</asp:UpdatePanel>
</div>
</form>
</body>
.ASP.VB
......................
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
DatatableBindToGridview()
End If
End Sub
Private Sub DatatableBindToGridview()
Dim dt As New DataTable
With dt
.Columns.Add("格式1", GetType(String))
.Columns.Add("格式2", GetType(String))
For i As Integer = 0 To 10
.Rows.Add()
.Rows(i).Item(0) = Format(i, "00")
.Rows(i).Item(1) = Format(i, "00")
Next
End With
With GridView1
.DataSource = dt
.DataBind()
.HorizontalAlign = HorizontalAlign.Center
.GridLines = GridLines.Both
.HeaderStyle.BorderColor = Drawing.Color.Black
.HeaderStyle.BackColor = Drawing.Color.Gray
.HeaderStyle.ForeColor = Drawing.Color.White
.Font.Size = 14
End With
End Sub
Private Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
If GridView1.Rows.Count < 0 Then Exit Sub
If e.Row.RowType = DataControlRowType.DataRow Then
If e.Row.RowIndex Mod 2 = 0 Then
e.Row.BackColor = Drawing.Color.LemonChiffon
Else
e.Row.BackColor = Drawing.Color.AliceBlue
End If
End If
End Sub
Public Overrides Sub VerifyRenderingInServerForm(ByVal control As Control)
'少了這個Sub
'GridView1.RenderControl 時會產生
'型別 'GridView' 的控制項
'GridView1 必須置於有 runat=server 的表單標記之中。
End Sub
Protected Sub btnExport_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnExport.Click
Dim sw As New System.IO.StringWriter
Dim hw As New System.Web.UI.HtmlTextWriter(sw)
GridView1.RenderControl(hw)
With Response
.ClearContent()
.AppendHeader("Content-Disposition", "attachment; filename=" & Format(Now, "yyyyMMdd HHmmss") & ".xls")
.ContentType = "application/vnd.ms-excel"
.Write("<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>")
.Write("<style type=text/css>")
.Write("td{mso-number-format:\@;}")
.Write("</style>")
.Write(sw.ToString())
.End()
End With
End Sub
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