整理的 C# DataSet导出至Excel文件（2）

整理的 C# DataSet导出至Excel文件

//方法1

public bool SavetoExcel(string Path, DataSet ds)

{

try

{

string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Path + ";" + "Extended Properties=Excel 8.0;";

OleDbConnection conn = new OleDbConnection(strConn);

conn.Open();

System.Data.OleDb.OleDbCommand cmd = new OleDbCommand();

cmd.Connection = conn;

int RowCount = ds.Tables[0].Rows.Count;

string strfiles = "";

for (int i = 1; i <= ds.Tables[0].Columns.Count; i++)

{

strfiles = strfiles + "A" + i.ToString() + " ,";

}

for (int i = 0; i < RowCount; i++)

{

string strValues = "";

for (int j = 0; j < ds.Tables[0].Columns.Count; j++)

{

strValues = strValues + " '" + ds.Tables[0].Rows[i][j].ToString() + "' ,";

}

//cmd.CommandText = "INSERT INTO [sheet1$] VALUES("+strValues.TrimEnd(',') +" )";

cmd.CommandText = "INSERT INTO [sheet1$](" + strfiles.TrimEnd(',') + ") select " + strValues.TrimEnd(',') + " ";

cmd.ExecuteNonQuery();

}

conn.Close();

cmd.Dispose();

return true;

}

catch (System.Data.OleDb.OleDbException ex)

{

System.Diagnostics.Debug.WriteLine("写入Excel发生错误：" + ex.Message);

}

return false;

}

* */

#endregion

//方法2 导出 EXCEL 文件

protected void ExportExcel(string strExportFilename, DataSet dsResultData)

{

if (dsResultData == null) return;

string saveFileName = strExportFilename;

Excel.Application xlApp = new Excel.Application();

object missing = System.Reflection.Missing.Value;

if (xlApp == null)

{

MessageBox.Show("无法创建Excel对象，可能您的机子未安装Excel");

return;

}

Excel.Workbooks workbooks = xlApp.Workbooks;

Excel.Workbook workbook = workbooks.Add(Excel.XlWBATemplate.xlWBATWorksheet);

Excel.Worksheet worksheet = (Excel.Worksheet)workbook.Worksheets[1];//取得sheet1

// string oldCaption = Title_label.Text.Trim();

long totalCount = dsResultData.Tables[0].Rows.Count;

for (int i = 0; i < dsResultData.Tables[0].Columns.Count; i++)

{

int IndexCol = arrColumn.IndexOf(dsResultData.Tables[0].Columns[i].Caption );

if (IndexCol > -1)

{

worksheet.Cells[1, i + 1] = arrColumnName[IndexCol ];// dsResultData.Tables[0].Columns[i].ColumnName;

}

}

//写入数值

// System.Windows.Forms.VisualStyles.VisualStyleElement.Window.Caption.Visible = true;

for (int r = 0; r < dsResultData.Tables[0].Rows.Count; r++)

{

for (int i = 0; i < dsResultData.Tables[0].Columns.Count; i++)

{

worksheet.Cells[r + 2, i + 1] = dsResultData.Tables[0].Rows[r][i].ToString();

}

Application.DoEvents();

}

worksheet.SaveAs(saveFileName, missing, missing, missing, missing, missing, missing, missing, missing, missing);

//worksheet.SaveAs(saveFileName, missing, missing, missing, missing, missing, missing, missing, missing);

//this.Caption.Visible = false;

//this.Caption.Text = oldCaption;

//range = worksheet.get_Range(worksheet.Cells[2, 1], worksheet.Cells[dsResultData.Tables[0].Rows.Count + 2, dsResultData.Tables[0].Columns.Count]);

////range.BorderAround(Excel.XlLineStyle.xlContinuous, Excel.XlBorderWeight.xlThin, Excel.XlColorIndex.xlColorIndexAutomatic, null);

////range.Borders[Excel.XlBordersIndex.xlInsideHorizontal].ColorIndex = Excel.XlColorIndex.xlColorIndexAutomatic;

////range.Borders[Excel.XlBordersIndex.xlInsideHorizontal].LineStyle = Excel.XlLineStyle.xlContinuous;

////range.Borders[Excel.XlBordersIndex.xlInsideHorizontal].Weight = Excel.XlBorderWeight.xlThin;

//if (dsResultData.Tables[0].Columns.Count > 1)

//{

// range.Borders[Excel.XlBordersIndex.xlInsideVertical].ColorIndex = Excel.XlColorIndex.xlColorIndexAutomatic;

//}

workbook.Close(missing, missing, missing);

xlApp.Quit();

}

-------------------------

给自己淘宝小店做个广告：新上品质超好的婴幼儿用品，大家快来看看哦，针对老顾客全部进价销售！

http://lovehealthylife.taobao.com/

主营孕妇装，防辐射装，婴幼儿用品，自用送人都很合适！虽然没有搞折扣优惠之类的活动，但绝对质优价廉！比搞活动的还便宜！你懂滴