dataGridView导出Excel

添加com中引用microsoft excel 11.0 object library

添加引用using Microsoft.Office.Interop.Excel;

public static void print(DataGridView dataGridView1)

{//导出到execl

try

{

if (dataGridView1.Rows.Count == 0)

return;

Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Applicati on();

excel.Application.Workbooks.Add(true);

excel.Visible = true;

//生成字段名称

for (int i = 0; i < dataGridView1.Columns.Count; i++)

{

excel.Cells[1, i + 1] = dataGridView1.Columns.HeaderText;

}

//填充数据

for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)

{

for (int j = 0; j < dataGridView1.Columns.Count; j++)

{

if (dataGridView1[j, i].ValueType == typeof(string))

{

excel.Cells[i + 2, j + 1] = "'" + dataGridView1[j, i].Value.ToString();

}

else

{

excel.Cells[i + 2, j + 1] = dataGridView1[j, i].Value.ToString();

}

}

}

}

catch (Exception ex)

{

MessageBox.Show(ex.Message, "错误提示");

}

}

很好很强大！

///

///

/// add com "Microsoft Excel 11.0 Object Library"

/// using Excel=Microsoft.Office.Interop.Excel;

/// using System.Reflection;

///

/// DataGridView

public static void DataGridViewToExcel(DataGridView dgv)

{

#region 验证可操作性

//申明保存对话框

SaveFileDialog dlg = new SaveFileDialog();

//默然文件后缀

dlg.DefaultExt = "xls ";

//文件后缀列表

dlg.Filter = "EXCEL文件(*.XLS)|*.xls ";

//默然路径是系统当前路径

dlg.InitialDirectory = Directory.GetCurrentDirectory();

//打开保存对话框

if (dlg.ShowDialog() == DialogResult.Cancel) return;

//返回文件路径

string fileNameString = dlg.FileName;

//验证strFileName是否为空或值无效

if (fileNameString.Trim() == " ")

{ return; }

//定义表格内数据的行数和列数

int rowscount = dgv.Rows.Count;

int colscount = dgv.Columns.Count;

//行数必须大于0

if (rowscount <= 0)

{

MessageBox.Show("没有数据可供保存 ", "提示 ", MessageBoxButtons.OK, https://www.sodocs.net/doc/505271234.html,rmation);

return;

}

//列数必须大于0

if (colscount <= 0)

{

MessageBox.Show("没有数据可供保存 ", "提示 ", MessageBoxButtons.OK, https://www.sodocs.net/doc/505271234.html,rmation);

return;

}

//行数不可以大于65536

if (rowscount > 65536)

{

MessageBox.Show("数据记录数太多(最多不能超过65536条)，不能保存 ", "提示 ", MessageBoxButtons.OK, https://www.sodocs.net/doc/505271234.html,rmation);

}

//列数不可以大于255

if (colscount > 255)

{

MessageBox.Show("数据记录行数太多，不能保存 ", "提示 ", MessageBoxButtons.OK, https://www.sodocs.net/doc/505271234.html,rmation);

return;

}

//验证以fileNameString命名的文件是否存在，如果存在删除它

FileInfo file = new FileInfo(fileNameString);

if (file.Exists)

{

try

{

file.Delete();

}

catch (Exception error)

{

MessageBox.Show(error.Message, "删除失败 ", MessageBoxButtons.OK, MessageBoxIcon.Warning);

return;

}

}

#endregion

Microsoft.Office.Interop.Excel.Application objExcel = null;

Microsoft.Office.Interop.Excel.Workbook objWorkbook = null;

Microsoft.Office.Interop.Excel.Worksheet objsheet = null;

try

{

//申明对象

objExcel = new Microsoft.Office.Interop.Excel.Application();

objWorkbook = objExcel.Workbooks.Add(Missing.Value);

objsheet = (Microsoft.Office.Interop.Excel.Worksheet)objWorkbook.ActiveSheet;

//设置EXCEL不可见

objExcel.Visible = false;

//向Excel中写入表格的表头

int displayColumnsCount = 1;

for (int i = 0; i <= dgv.ColumnCount - 1; i++)

{

if (dgv.Columns.Visible == true)

{

objExcel.Cells[1, displayColumnsCount] = dgv.Columns.HeaderText.Trim();

displayColumnsCount++;

}

//设置进度条

//tempProgressBar.Refresh();

//tempProgressBar.Visible = true;

//tempProgressBar.Minimum=1;

//tempProgressBar.Maximum=dgv.RowCount;

//tempProgressBar.Step=1;

//向Excel中逐行逐列写入表格中的数据

for (int row = 0; row <= dgv.RowCount - 1; row++)

{

//tempProgressBar.PerformStep();

displayColumnsCount = 1;

for (int col = 0; col < colscount; col++)

{

if (dgv.Columns[col].Visible == true)

{

try

{

objExcel.Cells[row + 2, displayColumnsCount] = dgv.Rows[row].Cells[col].Value.ToS tring().Trim();

displayColumnsCount++;

}

catch (Exception)

{

}

}

}

}

//隐藏进度条

//tempProgressBar.Visible = false;

//保存文件

objWorkbook.SaveAs(fileNameString, Missing.Value, Missing.Value, Missing.Value, Missing.V alue,

Missing.Value, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlShared, Missing.Value, Missing.Value, Missing.Value,

Missing.Value, Missing.Value);

}

catch (Exception error)

{

MessageBox.Show(error.Message, "警告 ", MessageBoxButtons.OK, MessageBoxIcon.Warning);

return;

}

{

//关闭Excel应用

if (objWorkbook != null) objWorkbook.Close(Missing.Value, Missing.Value, Missing.Value);

if (objExcel.Workbooks != null) objExcel.Workbooks.Close();

if (objExcel != null) objExcel.Quit();

objsheet = null;

objWorkbook = null;

objExcel = null;

}

MessageBox.Show(fileNameString + "\n\n导出完毕! ", "提示 ", MessageBoxButtons.OK, https://www.sodocs.net/doc/505271234.html,rmation);

}

如果要从C#中将一些内容导出到Excel，有一个简单的办法新建一个类，然后在导出按钮中调用它就可以了，下面是导出类和调用方法。

导出类：

public class ExportXLS

{

public ExportXLS()

{

}

public static void ExportDataGridViewToExcel(DataGridView dataGridview1)

{

SaveFileDialog saveFileDialog = new SaveFileDialog();

saveFileDialog.Filter = "Execl files (*.xls)|*.xls";

saveFileDialog.FilterIndex = 0;

saveFileDialog.RestoreDirectory = true;

saveFileDialog.CreatePrompt = true;

saveFileDialog.Title = "导出Excel文件到";

DateTime now = DateTime.Now;

saveFileDialog.FileName = now.Year.ToString().PadLeft(2) + now.Month.ToString().PadLeft(2, '0')

+ now.Day.ToString().PadLeft(2, '0') + "-"

+ now.Hour.ToString().PadLeft(2, '0')

+ now.Minute.ToString().PadLeft(2, '0')

+ now.Second.ToString().PadLeft(2, '0');

saveFileDialog.ShowDialog();

Stream myStream;

myStream = saveFileDialog.OpenFile();

StreamWriter sw = new StreamWriter(myStream,

System.Text.Encoding.GetEncoding("gb2312"));

string str = "";

try

{

//写标题

for (int i = 0; i < dataGridview1.ColumnCount; i++) {

if (i > 0)

{

str += "\t";

}

str += dataGridview1.Columns[i].HeaderText;

}

sw.WriteLine(str);

//写内容

for (int j = 0; j < dataGridview1.Rows.Count-1; j++) {

string tempStr = "";

for (int k = 0; k < dataGridview1.Columns.Count; k++) {

if (k > 0)

{

tempStr += "\t";

}

tempStr +=

dataGridview1.Rows[j].Cells[k].Value.ToString();

}

sw.WriteLine(tempStr);

}

sw.Close();

myStream.Close();

}

catch (Exception e)

{

MessageBox.Show(e.ToString());

}

finally

{

sw.Close();

myStream.Close();

}

}

调用方法：

private void 导出ToolStripMenuItem_Click(object sender, EventArgs e) {

ExportXLS.ExportDataGridViewToExcel(dataGridView1);

}

如果还需要其它文件格式，可以在类中红字地方加上你所要的文件格式，如saveFileDialog.Filter = "Execl files (*.xls)|*.xls|All files (*.*)|*.*";

excel导入导出通用方法

1.package https://www.sodocs.net/doc/505271234.html,mon.utils; 2.import java.io.OutputStream; 3.import java.util.List; 4.import javax.servlet.http.HttpServletResponse; 5.import org.apache.struts2.ServletActionContext; 6.import https://www.sodocs.net/doc/505271234.html,ng.reflect.Field; 7. 8.import jxl.Workbook; 9.import jxl.format.Alignment; 10.import jxl.format.Border; 11.import jxl.format.BorderLineStyle; 12.import jxl.format.VerticalAlignment; 13.import https://www.sodocs.net/doc/505271234.html,bel; 14.import jxl.write.WritableCellFormat; 15.import jxl.write.WritableFont; 16.import jxl.write.WritableSheet; 17.import jxl.write.WritableWorkbook; 18./*** 19. * @author lsf 20. */ 21.public class ExportExcel { 22./*************************************************************************** 23. * @param fileName EXCEL文件名称 24. * @param listTitle EXCEL文件第一行列标题集合 25. * @param listContent EXCEL文件正文数据集合 26. * @return 27. */ 28.public final static String exportExcel(String fileName,String[] Title, List