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WorkbookBase.BeforeXmlExport 事件

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在 Microsoft Office Excel 儲存或匯出活頁簿資料至 XML 資料檔前發生。

命名空間：  Microsoft.Office.Tools.Excel
組件：  Microsoft.Office.Tools.Excel.v4.0.Utilities (在 Microsoft.Office.Tools.Excel.v4.0.Utilities.dll 中)

語法

'宣告
Public Event BeforeXmlExport As WorkbookEvents_BeforeXmlExportEventHandler

public event WorkbookEvents_BeforeXmlExportEventHandler BeforeXmlExport

備註

當您儲存為 XML 試算表檔案格式時，不會發生此事件。

範例

下列程式碼範例示範如何將 XML 資料從活頁簿中匯出。 範例會從 DataSet 匯入 XML 資料至目前活頁簿的 XmlMap。 然後此範例會呼叫 SaveAsXMLData 方法，將資料從 XmlMap 匯出至 XML 檔中。 當呼叫 SaveAsXMLData 方法時，BeforeXmlExport 事件處理常式會報告 XML 正在匯出，而 AfterXmlExport 事件處理常式則會報告 XML 是否已成功匯出。

這是示範文件層級自訂的範例。

Private Sub WorkbookXmlExportEvents()

    ' Create a new DataTable.
    Dim ds As New DataSet()
    Dim dt As DataTable = ds.Tables.Add("Customers")
    dt.Columns.Add(New DataColumn("LastName"))
    dt.Columns.Add(New DataColumn("FirstName"))

    ' Add a new row to the DataTable.
    Dim dr As DataRow = dt.NewRow()
    dr("LastName") = "Chan"
    dr("FirstName") = "Gareth"
    dt.Rows.Add(dr)

    ' Add a new XML map.
    Dim xmlMap1 As Excel.XmlMap = Me.XmlMaps.Add( _
        ds.GetXmlSchema())

    ' Import the data into Sheet1. 
    Dim range1 As Excel.Range = Globals.Sheet1.Range("A1")
    Me.XmlImportXml(ds.GetXml(), xmlMap1, True, _
        range1)

    If xmlMap1.IsExportable Then
        Me.SaveAsXMLData(Me.Name & ".xml", xmlMap1)
    End If
End Sub

Sub ThisWorkbook_BeforeXmlExport(ByVal Map As Excel.XmlMap, _
    ByVal Url As String, ByRef Cancel As Boolean) _
    Handles Me.BeforeXmlExport

    MsgBox("Microsoft Excel is exporting XML from " & _
        "the XmlMap.")
End Sub

Sub ThisWorkbook_AfterXmlExport(ByVal Map As Excel.XmlMap, _
    ByVal Url As String, ByVal Result As Excel.XlXmlExportResult) _
    Handles Me.AfterXmlExport

    If Result = Excel.XlXmlExportResult.xlXmlExportSuccess Then
        MsgBox("XML export succeeded.")
    Else
        MsgBox("XML export failed.")
    End If
End Sub

private void WorkbookXmlExportEvents()
{
    this.BeforeXmlExport +=
        new Excel.WorkbookEvents_BeforeXmlExportEventHandler(
        ThisWorkbook_BeforeXmlExport);

    this.AfterXmlExport +=
        new Excel.WorkbookEvents_AfterXmlExportEventHandler(
        ThisWorkbook_AfterXmlExport);

    // Create a new DataTable.
    DataSet ds = new DataSet();
    DataTable dt = ds.Tables.Add("Customers");
    dt.Columns.Add(new DataColumn("LastName"));
    dt.Columns.Add(new DataColumn("FirstName"));

    // Add a new row to the DataTable.
    DataRow dr = dt.NewRow();
    dr["LastName"] = "Chan";
    dr["FirstName"] = "Gareth";
    dt.Rows.Add(dr);

    // Add a new XML map.
    Excel.XmlMap xmlMap1 = this.XmlMaps.Add(
        ds.GetXmlSchema());

    // Import the data into Sheet1. 
    Excel.Range range1 = Globals.Sheet1.Range["A1"];
    this.XmlImportXml(ds.GetXml(), out xmlMap1, true,
       range1);

    // Export the data.
    if (xmlMap1.IsExportable)
    {
        this.SaveAsXMLData(this.Name + ".xml", xmlMap1);
    }
}

void ThisWorkbook_BeforeXmlExport(Excel.XmlMap Map, string Url,
    ref bool Cancel)
{
    MessageBox.Show("Microsoft Excel is exporting XML from " +
        "the XmlMap.");
}

void ThisWorkbook_AfterXmlExport(Excel.XmlMap Map, string Url,
    Excel.XlXmlExportResult Result)
{
    if (Result == Excel.XlXmlExportResult.xlXmlExportSuccess)
    {
        MessageBox.Show("XML export succeeded.");
    }
    else
    {
        MessageBox.Show("XML export failed.");
    }
}

.NET Framework 安全性

請參閱

參考

WorkbookBase 類別

Microsoft.Office.Tools.Excel 命名空間