// Create a Recordset from all the records in the Orders table.
ADODB.Connection objConn = new ADODB.Connection();
ADODB._Recordset objRS = null;
objConn.Open("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" +
m_strNorthwind + ";", "", "", 0);
objConn.CursorLocation = ADODB.CursorLocationEnum.adUseClient;
object objRecAff;
objRS = (ADODB._Recordset)objConn.Execute("Orders", out objRecAff,
(int)ADODB.CommandTypeEnum.adCmdTable);
// Start a new workbook in Excel.
m_objExcel = new Excel.Application();
m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;
m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt));
m_objSheets = (Excel.Sheets)m_objBook.Worksheets;
m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1));
// Get the Fields collection from the recordset and determine
// the number of fields (or columns).
System.Collections.IEnumerator objFields = objRS.Fields.GetEnumerator();
int nFields = objRS.Fields.Count;
// Create an array for the headers and add it to the
// worksheet starting at cell A1.
object[] objHeaders = new object[nFields];
ADODB.Field objField = null;
for(int n=0;n<nFields;n++)
{
objFields.MoveNext();
objField = (ADODB.Field)objFields.Current;
objHeaders[n] = objField.Name;
}
m_objRange = m_objSheet.get_Range("A1", m_objOpt);
m_objRange = m_objRange.get_Resize(1, nFields);
m_objRange.Value = objHeaders;
m_objFont = m_objRange.Font;
m_objFont.Bold=true;
// Transfer the recordset to the worksheet starting at cell A2.
m_objRange = m_objSheet.get_Range("A2", m_objOpt);
m_objRange.CopyFromRecordset(objRS, m_objOpt, m_objOpt);
// Save the Workbook and quit Excel.
m_objBook.SaveAs(m_strSampleFolder + "Book3.xls", m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange,
m_objOpt, m_objOpt, m_objOpt, m_objOpt);
m_objBook.Close(false, m_objOpt, m_objOpt);
m_objExcel.Quit();
// Close the recordset and connection.
objRS.Close();
objConn.Close();
// Connect to the data source.
System.Data.OleDb.OleDbConnection objConn = new System.Data.OleDb.OleDbConnection(
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + m_strNorthwind + ";");
objConn.Open();
// Execute a command to retrieve all records from the Employees table.
System.Data.OleDb.OleDbCommand objCmd = new System.Data.OleDb.OleDbCommand(
"Select * From Employees", objConn);
System.Data.OleDb.OleDbDataReader objReader;
objReader = objCmd.ExecuteReader();
// Create the FileStream and StreamWriter object to write
// the recordset contents to file.
System.IO.FileStream fs = new System.IO.FileStream(
m_strSampleFolder + "Book6.txt", System.IO.FileMode.Create);
System.IO.StreamWriter sw = new System.IO.StreamWriter(
fs, System.Text.Encoding.Unicode);
// Write the field names (headers) as the first line in the text file.
sw.WriteLine(objReader.GetName(0) + "\t" + objReader.GetName(1) +
"\t" + objReader.GetName(2) + "\t" + objReader.GetName(3) +
"\t" + objReader.GetName(4) + "\t" + objReader.GetName(5));
// Write the first six columns in the recordset to a text file as
// tab-delimited.
while(objReader.Read())
{
for(int i=0;i<=5;i++)
{
if(!objReader.IsDBNull(i))
{
string s;
s = objReader.GetDataTypeName(i);
if(objReader.GetDataTypeName(i)=="DBTYPE_I4")
{
sw.Write(objReader.GetInt32(i).ToString());
}
else if(objReader.GetDataTypeName(i)=="DBTYPE_DATE")
{
sw.Write(objReader.GetDateTime(i).ToString("d"));
}
else if (objReader.GetDataTypeName(i)=="DBTYPE_WVARCHAR")
{
sw.Write(objReader.GetString(i));
}
}
if(i<5) sw.Write("\t");
}
sw.WriteLine();
}
sw.Flush(); // Write the buffered data to the filestream.
// Close the FileStream.
fs.Close();
// Close the reader and the connection.
objReader.Close();
objConn.Close();
// Open the text file in Excel.
m_objExcel = new Excel.Application();
m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;
m_objBooks.OpenText(m_strSampleFolder + "Book6.txt", Excel.XlPlatform.xlWindows, 1,
Excel.XlTextParsingType.xlDelimited, Excel.XlTextQualifier.xlTextQualifierDoubleQuote,
false, true, false, false, false, false, m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt);
m_objBook = m_objExcel.ActiveWorkbook;
// Save the text file in the typical workbook format and quit Excel.
m_objBook.SaveAs(m_strSampleFolder + "Book6.xls", Excel.XlFileFormat.xlWorkbookNormal,
m_objOpt, m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange, m_objOpt, m_objOpt,
m_objOpt, m_objOpt);
m_objBook.Close(false, m_objOpt, m_objOpt);
m_objExcel.Quit();
將資料傳送至工作表藉由使用 ADO . NET
您可以使用 Microsoft Jet OLE DB 提供者若要將資料錄加入資料表在現有的 Excel 活頁簿中。 在 Excel 表格 是只是某個範圍的儲存格 ; 範圍可能會有一個已定義的名稱。 通常, 第一列的範圍包含標頭 (或欄位名稱), 並範圍中的所有資料列更新的版本包含資料錄。
下列程式碼將兩個新資料錄至 Book7.xls 中的資料表。 在這個案例資料表是 Sheet 1:
// Establish a connection to the data source.
System.Data.OleDb.OleDbConnection objConn = new System.Data.OleDb.OleDbConnection(
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + m_strSampleFolder +
"Book7.xls;Extended Properties=Excel 8.0;");
objConn.Open();
// Add two records to the table named 'MyTable'.
System.Data.OleDb.OleDbCommand objCmd = new System.Data.OleDb.OleDbCommand();
objCmd.Connection = objConn;
objCmd.CommandText = "Insert into MyTable (FirstName, LastName)" +
" values ('Bill', 'Brown')";
objCmd.ExecuteNonQuery();
objCmd.CommandText = "Insert into MyTable (FirstName, LastName)" +
" values ('Joe', 'Thomas')";
objCmd.ExecuteNonQuery();
// Close the connection.
objConn.Close();
當您新增具有 ADO . NET 的記錄, 如這個範例, 所示是維護活頁簿中的格式設定。 每個資料錄加入至資料列的格式與資料列之前, 採用。
在 [ COM ] 索引標籤, 找出 Microsoft Excel 10.0 Object Library 或 Microsoft Excel 11.0 Object Library , 並按一下 選取 。
請注意 在 Visual Studio 2005, 您沒有, 按一下 [ 選取 。
注意 如果您是使用 Microsoft Excel 2002 且您尚未如此, Microsoft 建議您下載並再安裝 Microsoft Office XP Primary Interop Assemblies (PIA)。 如需有關 Office XP PIA 的詳細資訊,請按一下下面的文件編號,檢視「Microsoft 知識庫」中的文件::
328912 (http://support.microsoft.com/kb/328912/)
INFO: Microsoft Office XP PIA 可供下載
// Excel object references.
private Excel.Application m_objExcel = null;
private Excel.Workbooks m_objBooks = null;
private Excel._Workbook m_objBook = null;
private Excel.Sheets m_objSheets = null;
private Excel._Worksheet m_objSheet = null;
private Excel.Range m_objRange = null;
private Excel.Font m_objFont = null;
private Excel.QueryTables m_objQryTables = null;
private Excel._QueryTable m_objQryTable = null;
// Frequenty-used variable for optional arguments.
private object m_objOpt = System.Reflection.Missing.Value;
// Paths used by the sample code for accessing and storing data.
private object m_strSampleFolder = "C:\\ExcelData\\";
private string m_strNorthwind = "C:\\Program Files\\Microsoft Office\\Office10\\Samples\\Northwind.mdb";
private void Form1_Load(object sender, System.EventArgs e)
{
comboBox1.DropDownStyle = ComboBoxStyle.DropDownList;
comboBox1.Items.AddRange(new object[]{
"Use Automation to Transfer Data Cell by Cell ",
"Use Automation to Transfer an Array of Data to a Range on a Worksheet ",
"Use Automation to Transfer an ADO Recordset to a Worksheet Range ",
"Use Automation to Create a QueryTable on a Worksheet",
"Use the Clipboard",
"Create a Delimited Text File that Excel Can Parse into Rows and Columns",
"Transfer Data to a Worksheet Using ADO.NET "});
comboBox1.SelectedIndex = 0;
button1.Text = "Go!";
}
private void button1_Click(object sender, System.EventArgs e)
{
switch (comboBox1.SelectedIndex)
{
case 0 : Automation_CellByCell(); break;
case 1 : Automation_UseArray(); break;
case 2 : Automation_ADORecordset(); break;
case 3 : Automation_QueryTable(); break;
case 4 : Use_Clipboard(); break;
case 5 : Create_TextFile(); break;
case 6 : Use_ADONET(); break;
}
//Clean-up
m_objFont = null;
m_objRange = null;
m_objSheet = null;
m_objSheets = null;
m_objBooks = null;
m_objBook = null;
m_objExcel = null;
GC.Collect();
}
private void Automation_CellByCell()
{
// Start a new workbook in Excel.
m_objExcel = new Excel.Application();
m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;
m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt));
// Add data to cells of the first worksheet in the new workbook.
m_objSheets = (Excel.Sheets)m_objBook.Worksheets;
m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1));
m_objRange = m_objSheet.get_Range("A1", m_objOpt);
m_objRange.set_Value(m_objOpt,"Last Name");
m_objRange = m_objSheet.get_Range("B1", m_objOpt);
m_objRange.set_Value(m_objOpt,"First Name");
m_objRange = m_objSheet.get_Range("A2", m_objOpt);
m_objRange.set_Value(m_objOpt,"Doe");
m_objRange = m_objSheet.get_Range("B2", m_objOpt);
m_objRange.set_Value(m_objOpt,"John");
// Apply bold to cells A1:B1.
m_objRange = m_objSheet.get_Range("A1", "B1");
m_objFont = m_objRange.Font;
m_objFont.Bold=true;
// Save the workbook and quit Excel.
m_objBook.SaveAs(m_strSampleFolder + "Book1.xls", m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange,
m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt);
m_objBook.Close(false, m_objOpt, m_objOpt);
m_objExcel.Quit();
}
private void Automation_UseArray()
{
// Start a new workbook in Excel.
m_objExcel = new Excel.Application();
m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;
m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt));
m_objSheets = (Excel.Sheets)m_objBook.Worksheets;
m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1));
// Create an array for the headers and add it to cells A1:C1.
object[] objHeaders = {"Order ID", "Amount", "Tax"};
m_objRange = m_objSheet.get_Range("A1", "C1");
m_objRange.set_Value(m_objOpt,objHeaders);
m_objFont = m_objRange.Font;
m_objFont.Bold=true;
// Create an array with 3 columns and 100 rows and add it to
// the worksheet starting at cell A2.
object[,] objData = new Object[100,3];
Random rdm = new Random((int)DateTime.Now.Ticks);
double nOrderAmt, nTax;
for(int r=0;r<100;r++)
{
objData[r,0] = "ORD" + r.ToString("0000");
nOrderAmt = rdm.Next(1000);
objData[r,1] = nOrderAmt.ToString("c");
nTax = nOrderAmt*0.07;
objData[r,2] = nTax.ToString("c");
}
m_objRange = m_objSheet.get_Range("A2", m_objOpt);
m_objRange = m_objRange.get_Resize(100,3);
m_objRange.set_Value(m_objOpt,"objData");
// Save the workbook and quit Excel.
m_objBook.SaveAs(m_strSampleFolder + "Book2.xls", m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange,
m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt);
m_objBook.Close(false, m_objOpt, m_objOpt);
m_objExcel.Quit();
}
private void Automation_ADORecordset()
{
// Create a Recordset from all the records in the Orders table.
ADODB.Connection objConn = new ADODB.Connection();
ADODB._Recordset objRS = null;
objConn.Open("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" +
m_strNorthwind + ";", "", "", 0);
objConn.CursorLocation = ADODB.CursorLocationEnum.adUseClient;
object objRecAff;
objRS = (ADODB._Recordset)objConn.Execute("Orders", out objRecAff,
(int)ADODB.CommandTypeEnum.adCmdTable);
// Start a new workbook in Excel.
m_objExcel = new Excel.Application();
m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;
m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt));
m_objSheets = (Excel.Sheets)m_objBook.Worksheets;
m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1));
// Get the Fields collection from the recordset and determine
// the number of fields (or columns).
System.Collections.IEnumerator objFields = objRS.Fields.GetEnumerator();
int nFields = objRS.Fields.Count;
// Create an array for the headers and add it to the
// worksheet starting at cell A1.
object[] objHeaders = new object[nFields];
ADODB.Field objField = null;
for(int n=0;n<nFields;n++)
{
objFields.MoveNext();
objField = (ADODB.Field)objFields.Current;
objHeaders[n] = objField.Name;
}
m_objRange = m_objSheet.get_Range("A1", m_objOpt);
m_objRange = m_objRange.get_Resize(1, nFields);
m_objRange.set_Value(m_objOpt,objHeaders);
m_objFont = m_objRange.Font;
m_objFont.Bold=true;
// Transfer the recordset to the worksheet starting at cell A2.
m_objRange = m_objSheet.get_Range("A2", m_objOpt);
m_objRange.CopyFromRecordset(objRS, m_objOpt, m_objOpt);
// Save the workbook and quit Excel.
m_objBook.SaveAs(m_strSampleFolder + "Book3.xls", m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange,
m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt);
m_objBook.Close(false, m_objOpt, m_objOpt);
m_objExcel.Quit();
//Close the recordset and connection
objRS.Close();
objConn.Close();
}
private void Automation_QueryTable()
{
// Start a new workbook in Excel.
m_objExcel = new Excel.Application();
m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;
m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt));
// Create a QueryTable that starts at cell A1.
m_objSheets = (Excel.Sheets)m_objBook.Worksheets;
m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1));
m_objRange = m_objSheet.get_Range("A1", m_objOpt);
m_objQryTables = m_objSheet.QueryTables;
m_objQryTable = (Excel._QueryTable)m_objQryTables.Add(
"OLEDB;Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" +
m_strNorthwind + ";", m_objRange, "Select * From Orders");
m_objQryTable.RefreshStyle = Excel.XlCellInsertionMode.xlInsertEntireRows;
m_objQryTable.Refresh(false);
// Save the workbook and quit Excel.
m_objBook.SaveAs(m_strSampleFolder + "Book4.xls", m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange, m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt);
m_objBook.Close(false, m_objOpt, m_objOpt);
m_objExcel.Quit();
}
private void Use_Clipboard()
{
// Copy a string to the clipboard.
string sData = "FirstName\tLastName\tBirthdate\r\n" +
"Bill\tBrown\t2/5/85\r\n" +
"Joe\tThomas\t1/1/91";
System.Windows.Forms.Clipboard.SetDataObject(sData);
// Start a new workbook in Excel.
m_objExcel = new Excel.Application();
m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;
m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt));
// Paste the data starting at cell A1.
m_objSheets = (Excel.Sheets)m_objBook.Worksheets;
m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1));
m_objRange = m_objSheet.get_Range("A1", m_objOpt);
m_objSheet.Paste(m_objRange, false);
// Save the workbook and quit Excel.
m_objBook.SaveAs(m_strSampleFolder + "Book5.xls", m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange, m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt);
m_objBook.Close(false, m_objOpt, m_objOpt);
m_objExcel.Quit();
}
private void Create_TextFile()
{
// Connect to the data source.
System.Data.OleDb.OleDbConnection objConn = new System.Data.OleDb.OleDbConnection(
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + m_strNorthwind + ";");
objConn.Open();
// Execute a command to retrieve all records from the Employees table.
System.Data.OleDb.OleDbCommand objCmd = new System.Data.OleDb.OleDbCommand(
"Select * From Employees", objConn);
System.Data.OleDb.OleDbDataReader objReader;
objReader = objCmd.ExecuteReader();
// Create the FileStream and StreamWriter object to write
// the recordset contents to file.
System.IO.FileStream fs = new System.IO.FileStream(
m_strSampleFolder + "Book6.txt", System.IO.FileMode.Create);
System.IO.StreamWriter sw = new System.IO.StreamWriter(
fs, System.Text.Encoding.Unicode);
// Write the field names (headers) as the first line in the text file.
sw.WriteLine(objReader.GetName(0) + "\t" + objReader.GetName(1) +
"\t" + objReader.GetName(2) + "\t" + objReader.GetName(3) +
"\t" + objReader.GetName(4) + "\t" + objReader.GetName(5));
// Write the first six columns in the recordset to a text file as
// tab-delimited.
while(objReader.Read())
{
for(int i=0;i<=5;i++)
{
if(!objReader.IsDBNull(i))
{
string s;
s = objReader.GetDataTypeName(i);
if(objReader.GetDataTypeName(i)=="DBTYPE_I4")
{
sw.Write(objReader.GetInt32(i).ToString());
}
else if(objReader.GetDataTypeName(i)=="DBTYPE_DATE")
{
sw.Write(objReader.GetDateTime(i).ToString("d"));
}
else if (objReader.GetDataTypeName(i)=="DBTYPE_WVARCHAR")
{
sw.Write(objReader.GetString(i));
}
}
if(i<5) sw.Write("\t");
}
sw.WriteLine();
}
sw.Flush(); // Write the buffered data to the FileStream.
// Close the FileStream.
fs.Close();
// Close the reader and the connection.
objReader.Close();
objConn.Close();
// ==================================================================
// Optionally, automate Excel to open the text file and save it in the
// Excel workbook format.
// Open the text file in Excel.
m_objExcel = new Excel.Application();
m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;
m_objBooks.OpenText(m_strSampleFolder + "Book6.txt", Excel.XlPlatform.xlWindows, 1,
Excel.XlTextParsingType.xlDelimited, Excel.XlTextQualifier.xlTextQualifierDoubleQuote,
false, true, false, false, false, false, m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt);
m_objBook = m_objExcel.ActiveWorkbook;
// Save the text file in the typical workbook format and quit Excel.
m_objBook.SaveAs(m_strSampleFolder + "Book6.xls", Excel.XlFileFormat.xlWorkbookNormal,
m_objOpt, m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange, m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt);
m_objBook.Close(false, m_objOpt, m_objOpt);
m_objExcel.Quit();
}
private void Use_ADONET()
{
// Establish a connection to the data source.
System.Data.OleDb.OleDbConnection objConn = new System.Data.OleDb.OleDbConnection(
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + m_strSampleFolder +
"Book7.xls;Extended Properties=Excel 8.0;");
objConn.Open();
// Add two records to the table named 'MyTable'.
System.Data.OleDb.OleDbCommand objCmd = new System.Data.OleDb.OleDbCommand();
objCmd.Connection = objConn;
objCmd.CommandText = "Insert into MyTable (FirstName, LastName)" +
" values ('Bill', 'Brown')";
objCmd.ExecuteNonQuery();
objCmd.CommandText = "Insert into MyTable (FirstName, LastName)" +
" values ('Joe', 'Thomas')";
objCmd.ExecuteNonQuery();
// Close the connection.
objConn.Close();
}
} // End Class
}// End namespace
請注意 您必須變更程式碼在 Visual Studio 2005。 根據預設值, Visual C# 中, 將一個表單加入至專案當您建立 Windows Form 專案。 將表單命名為 Form 1。 將兩個檔案, 表示表單則名為 Form 1. cs 和 Form1.designer.cs。 在 Form 1. cs 您撰寫程式碼。 Form1.designer.cs 檔案是您執行利用從 [ 工具箱 ] 拖放控制項撰寫 Windows Form 設計工具實作所有動作的程式碼。
如需在 Visual C# 2005, [ Windows Form 設計工具的資訊請造訪下列 Microsoft Developer Network (MSDN) 網站:
重要:本文是以 Microsoft 機器翻譯軟體翻譯而成,而非使用人工翻譯而成。Microsoft 同時提供使用者人工翻譯及機器翻譯兩個版本的文章,讓使用者可以依其使用語言使用知識庫中的所有文章。但是,機器翻譯的文章可能不盡完美。這些文章中也可能出現拼字、語意或文法上的錯誤,就像外國人在使用本國語言時可能發生的錯誤。Microsoft 不為內容的翻譯錯誤或客戶對該內容的使用所產生的任何錯誤或損害負責。Microsoft也同時將不斷地就機器翻譯軟體進行更新。如果您發現錯誤,並想要協助我們進行改善,請填寫本篇文章下方的問卷。
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