DataGridView导出Excel问题
我使用了一个datagridview控件，用数据源绑定了。我想在FORM上设置一个Button，用来将datagridview当前显示的数据导出成Excel格式。请问大家具体怎么执行了，最好能给出详细的代码。
[解决办法]
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)
[解决办法]
*.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);
}
