テーブルスキーマに対して実行できるクエリの結果と同じカラム情報にアクセスできます。返されるカラムについては、カラム を参照してください。

結果セットメタデータの取得

Microsoft SharePoint ExcelDataReader のGetSchemaTable メソッドを使用して、結果セットのメタデータを取得できます。GetSchemaTable は、ExecuteReader を呼び出してから呼び出します。

DataTable の各行は、クエリの結果のカラムを説明します。

C#

string connectionString = "Url=https://myorg.sharepoint.com;[email protected];Password=password;File=Book1.xlsx;";

using (Microsoft SharePoint ExcelConnection conn = new Microsoft SharePoint ExcelConnection(connectionString)) {
  Microsoft SharePoint ExcelCommand cmd = new Microsoft SharePoint ExcelCommand("SELECT * FROM Account WHERE Industry = 'Floppy Disks'", conn);
  Microsoft SharePoint ExcelDataReader rdr = cmd.ExecuteReader();
  DataTable schemaTable = rdr.GetSchemaTable();
  foreach (DataRow row in schemaTable.Rows) {
    foreach (DataColumn col in schemaTable.Columns) {
      Console.WriteLine("{0}: {1}", col.ColumnName, row[col]);
    }
  }
}

VB.NET

Dim connectionString As String = "Url=https://myorg.sharepoint.com;[email protected];Password=password;File=Book1.xlsx;"

Using conn As New Microsoft SharePoint ExcelConnection(connectionString)
  Dim cmd As New Microsoft SharePoint ExcelCommand("SELECT * FROM Account WHERE Industry = 'Floppy Disks'", conn)
  Dim rdr As Microsoft SharePoint ExcelDataReader = cmd.ExecuteReader()
  Dim schemaTable As DataTable = rdr.GetSchemaTable()
  For Each row As DataRow In schemaTable.Rows
    For Each col As DataColumn In schemaTable.Columns
      Console.WriteLine("{0}: {1}", col.ColumnName, row(col))
    Next
  Next
End Using