111,092
社区成员




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, 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 > 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100
if (colscount > 100)
{
MessageBox.Show("数据记录列数太多,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 = 1;
for (int i = 0; i <= dgv.ColumnCount - 1; i++)
{
if (dgv.Columns[i].Visible == true)
{
objExcel.Cells[1, displayColumnsCount] = dgv.Columns[i].HeaderText.Trim();
displayColumnsCount++;
}
}
//设置进度条
//this.tempProgressBar.Refresh();
//this.tempProgressBar.Visible = true;
//this.tempProgressBar.Minimum = 1;
//this.tempProgressBar.Maximum = dgv.RowCount;
//this.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++)
{
//this.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.ToString().Trim();
displayColumnsCount++;
}
catch (Exception)
{
}
}
}
}
//隐藏进度条
//this.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.xlExclusive, 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);
}
public static void ExcelSave (DataGridView dgv)
{
if(dgv.RowCount<=0)
{
MessageBox.Show("缺少可以导出的数据!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
string saveFileName=string.Empty;
SaveFileDialog sfd=new SaveFileDialog();
sfd.DefaultExt="xlsx";
sfd.Filter="Excel文件|*.xlsx";
sfd.FileName="sheet1";
sfd.ShowDialog();
saveFileName=sfd.FileName;
if(saveFileName.IndexOf(".")<0)
{
return;
}
Microsoft.Office.Interop.Excel.Application myExcelApp=new Microsoft.Office.Interop.Excel.Application();
if(myExcelApp==null)
{
MessageBox.Show("无法创建Excel,可能您未安装Excel","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
Microsoft.Office.Interop.Excel.Workbooks workbooks=myExcelApp.Workbooks;
Microsoft.Office.Interop.Excel.Workbook workbook=workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
Microsoft.Office.Interop.Excel.Sheets sheets=workbook.Worksheets;
Microsoft.Office.Interop.Excel.Worksheet worksheet=(Microsoft.Office.Interop.Excel.Worksheet)sheets.get_Item(1);
Microsoft.Office.Interop.Excel.Range range;
object oMis=System.Reflection.Missing.Value;
//显示为文本格式
range=worksheet.get_Range(worksheet.Cells[1,1],worksheet.Cells[dgv.RowCount+1,dgv.ColumnCount]);
range.NumberFormatLocal="@";
//读入数据
for (int i=0; i<dgv.ColumnCount;i++ )
{
worksheet.Cells [1, i+1]=dgv.Columns [i].HeaderText.ToString().Trim();
}
for (int r=0; r<dgv.RowCount;r++ )
{
for (int i=0; i<dgv.ColumnCount;i++ )
{
worksheet.Cells [r+2, i+1]=dgv.Rows [r].Cells [i].Value.ToString().Trim();
}
}
range=worksheet.get_Range( worksheet.Cells [1, 1], worksheet.Cells [dgv.RowCount+1, dgv.ColumnCount] );
range.Columns.AutoFit();
range.RowHeight=18;
range.HorizontalAlignment=Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignLeft;
//保存
if (saveFileName!=string.Empty)
{
try
{
workbook.Saved=true;
workbook.SaveCopyAs( saveFileName );
}
catch (Exception ex)
{
MessageBox.Show( "导出文件时出错,文件可能正被打开!\n"+ex.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information );
}
}
else
{
MessageBox.Show( "文件名不能为空", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information );
}
myExcelApp.Visible=false;
myExcelApp.Quit();
GC.Collect();//垃圾回收
}
}
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"));
try
{
//写标题 ,就是把 dataGridview1的 Header也转到EXCEL,看你需要
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 < this.dataGridView2.Rows.Count ; j++)
{
string tempStr = "";
for (int k = 0; k < this.dataGridView2.Columns.Count; k++)
{
if (k > 0)
{
tempStr += "\t";
}
tempStr += this.dataGridView2.Rows[j].Cells[k].Value.ToString();
}
sw.WriteLine(tempStr);
}
sw.Close();
myStream.Close();
MessageBox.Show("导出成功");
}
catch (Exception yy)
{
MessageBox.Show(yy.ToString());
}
finally
{
sw.Close();
myStream.Close();
}