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发表于 2016-7-2 11:58:40
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显示全部楼层
这个不是很简单吗?直接用datagrid或者datatable 到处即可,这是我以前直接导出的方法,你看看
/// <summary>
///方法,导出DataGridView中的数据到Excel文件
/// </summary>
/// <remarks>
/// add com "Microsoft Excel 11.0 Object Library"
/// using Excel=Microsoft.Office.Interop.Excel;
/// using System.Reflection;
/// </remarks>
/// <param name= "dgv"> DataGridView </param>
public void DataTableToExcel(System.Data.DataTable dt)
{
//定义表格内数据的行数和列数
int rowscount = dt.Rows.Count;
int colscount = dt.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, MessageBoxIcon.Information);
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, MessageBoxIcon.Information);
return;
}
//行数不可以大于65536
if (rowscount > 1048576) //office2010 1048576, office2003 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, MessageBoxIcon.Information);
return;
}
//列数不可以大于255
if (colscount > 16384)//office2010 16384, office2003 255
{
MessageBox.Show("数据记录行数太多,不能保存 ", "提示 ", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
#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 = "xlsx ";
//文件后缀列表
dlg.Filter = "EXCEL文件(*.XLSX)|*.xlsx ";
//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; }
//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;
dt.Columns[0].ColumnName = "时间";
for (int i = 0; i <= dt.Columns.Count - 1; i++)
{
//if (dt.Columns[i].Visible == true)
//{
objExcel.Cells[1, displayColumnsCount] = dt.Columns[i].ColumnName.Trim();
displayColumnsCount++;
// }
}
//设置进度条
//tempProgressBar.Refresh();
//tempProgressBar.Visible = true;
//tempProgressBar.Minimum=1;
//tempProgressBar.Maximum=dgv.RowCount;
//tempProgressBar.Step=1;
string values = "";
//向Excel中逐行逐列写入表格中的数据
for (int row = 0; row <= dt.Rows.Count - 1; row++)
{
//tempProgressBar.PerformStep();
displayColumnsCount = 1;
for (int col = 0; col < colscount; col++)
{
//if (dt.Columns[col].Visible == true)
//{
try
{
if (col == 0)
{
values = Convert.ToDateTime(dt.Rows[row][0].ToString().Trim()).ToString("yyyy-MM-dd HH-mm-ss");
}
else
{
values = dt.Rows[row][col].ToString().Trim();
}
objExcel.Cells[row + 2, displayColumnsCount] = values;
displayColumnsCount++;
}
catch (Exception)
{
}
// }
}
}
//隐藏进度条
//tempProgressBar.Visible = false; //"C:\\Documents and Settings\\Administrator\\桌面\\333.xls"
//保存文件
objWorkbook.SaveAs(fileNameString, Missing.Value, Missing.Value, Missing.Value, Missing.Value,
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;
}
finally
{
//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, MessageBoxIcon.Information);
} |
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