最近，在做CS端数据导出到Excel中时网上找了很多代码感觉都不是自己想要的，通过自己的整理归纳得到一个比较通用的方法，就给大家分享一下；
该方法需要用到两个参数(即对象),一个 DataGridView对象 另外一个是我自己添加的一个进度条的对象，这样导出数据的时候会出现一个进度条，废话就不多说了，直接上源码，大家有什么想法可以留言一起讨论。
第一种方式：
public static bool OutToExcelFromDataGridView(string title, DataGridView dgv, bool isShowExcel)
{
int titleColumnSpan = 0;//标题的跨列数
string fileName = "";//保存的excel文件名
int columnIndex = 1;//列索引
if (dgv.Rows.Count == 0)
return false;
/*保存对话框*/
SaveFileDialog sfd = new SaveFileDialog();
sfd.Filter = "导出Excel(*.xls)|*.xlsx";
sfd.FileName = title + DateTime.Now.ToString("yyyyMMddhhmmss"); if (sfd.ShowDialog() == DialogResult.OK)
{
fileName = sfd.FileName;
/*建立Excel对象*/
Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
if (excel == null)
{
MessageBox.Show("无法创建Excel对象,可能您的计算机未安装Excel!");
return false;
}
try
{
excel.Application.Workbooks.Add(true);
excel.Visible = isShowExcel;
/*分析标题的跨列数*/
foreach (DataGridViewColumn column in dgv.Columns)
{ if (column.Visible == true)
titleColumnSpan++;
}
/*合并标题单元格*/
Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)excel.ActiveSheet;
//worksheet.get_Range("A1", "C10").Merge();
worksheet.get_Range(worksheet.Cells[1, 1] as Range, worksheet.Cells[1, titleColumnSpan] as Range).Merge();
/*生成标题*/
excel.Cells[1, 1] = title;
(excel.Cells[1, 1] as Range).HorizontalAlignment = XlHAlign.xlHAlignCenter;//标题居中
//生成字段名称
columnIndex = 1;
for (int i = 0; i < dgv.ColumnCount; i++)
{
if (dgv.Columns[i].Visible == true && dgv.Columns[i].HeaderText != "删除")
{
excel.Cells[2, columnIndex] = dgv.Columns[i].HeaderText;
(excel.Cells[2, columnIndex] as Range).HorizontalAlignment = XlHAlign.xlHAlignCenter;//字段居中
columnIndex++;
}
}
//填充数据
for (int i = 0; i < dgv.RowCount; i++)
{
columnIndex = 1;
for (int j = 0; j < dgv.ColumnCount; j++)
{
if (dgv.Columns[j].Visible == true && dgv.Columns[j].HeaderText != "删除")
{
if (dgv[j, i].ValueType == typeof(string))
{
excel.Cells[i + 3, columnIndex] = "'" + dgv[j, i].Value.ToString();
}
else
{
excel.Cells[i + 3, columnIndex] = dgv[j, i].Value.ToString();
}
(excel.Cells[i + 3, columnIndex] as Range).HorizontalAlignment = XlHAlign.xlHAlignLeft;//字段居中
columnIndex++;
}
}
}
worksheet.SaveAs(fileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
}
catch { }
finally
{
excel.Quit();
excel = null;
GC.Collect();
}
KillProcess("Excel");
return true;
}
else
{
return false;
}
} private static void KillProcess(string processName)//杀死与Excel相关的进程
{
System.Diagnostics.Process myproc = new System.Diagnostics.Process();//得到所有打开的进程
try
{
foreach (System.Diagnostics.Process thisproc in System.Diagnostics.Process.GetProcessesByName(processName))
{
if (!thisproc.CloseMainWindow())
{
thisproc.Kill();
}
}
}
catch (Exception Exc)
{
throw new Exception("", Exc);
}
}
第二种方式
public static void DataGridViewToExcel(DataGridView dgv,ProgressBar tempProgressBar)
{
#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(*.XLS)|*.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; }
//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 <= )
{
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 <= )
{
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 > )
{
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 > )
{
MessageBox.Show("数据记录行数太多，不能保存 ", "提示 ", MessageBoxButtons.OK, MessageBoxIcon.Information);
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 = ;
for (int i = ; i <= dgv.ColumnCount - ; i++)
{
if (dgv.Columns[i].Visible == true&& dgv.Columns[i].HeaderText.Trim()!="删除" && dgv.Columns[i].HeaderText.Trim() !="")
{
objExcel.Cells[, displayColumnsCount] = dgv.Columns[i].HeaderText.Trim();
displayColumnsCount++;
}
}
//设置进度条
tempProgressBar.Refresh();
tempProgressBar.Visible = true;
tempProgressBar.Minimum =;
tempProgressBar.Maximum =dgv.RowCount;
tempProgressBar.Step = ;
//向Excel中逐行逐列写入表格中的数据
for (int row = ; row <= dgv.RowCount - ; row++)
{
tempProgressBar.PerformStep(); displayColumnsCount = ;
for (int col = ; col < colscount; col++)
{
if (dgv.Columns[col].Visible == true&& dgv.Columns[col].HeaderText!="删除" && dgv.Columns[col].HeaderText.Trim() != "")
{
try
{
string Val = dgv.Rows[row].Cells[col].Value.ToString().Trim();
if (Val.Length >)
{
Val = "'" + Val;//加单引号
}
objExcel.Cells[row + , displayColumnsCount] = Val;
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.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 + "导出完毕! ", "提示 ", MessageBoxButtons.OK, MessageBoxIcon.Information); }
个人推荐第一种，经过测试第一种也可以，但是比较麻烦一些，第二种通俗简单，推荐使用；
根据个人喜好的选择吧，欢迎大神前来提意见；