[WinForm]dataGridView导出到EXCEL
方法一：
SaveFileDialog dlg = new SaveFileDialog();
dlg.Filter = "Execl files (*.xls)|*.xls";
dlg.FilterIndex = 0;
dlg.RestoreDirectory = true;
dlg.CreatePrompt = true;
dlg.Title = "保存为Excel文件";
dlg.FileName = "不合格记录";//保存的Excel名字
if (dlg.ShowDialog() == DialogResult.OK)
{
Stream myStream;
myStream = dlg.OpenFile();
StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding(-0));
string columnTitle = "";
try
{
//写入列标题
for (int i = 0; i < dgv.ColumnCount; i++)
{
if (i > 0)
{
columnTitle += "\t";
}
columnTitle += dgv.Columns[i].HeaderText;
}
sw.WriteLine(columnTitle);
//写入列内容
for (int j = 0; j < dgv.Rows.Count; j++)
{
string columnValue = "";
for (int k = 0; k < dgv.Columns.Count; k++)
{
if (k > 0)
{
columnValue += "\t";
}
if (dgv.Rows[j].Cells[k].Value == null)
columnValue += "";
else
columnValue += dgv.Rows[j].Cells[k].Value.ToString().Trim();
}
sw.WriteLine(columnValue);
}
sw.Close();
myStream.Close();
}
catch (Exception e)
{
MessageBox.Show(e.ToString());
}
finally
{
sw.Close();
myStream.Close();
}
}
方法二：包含图片
Microsoft.Office.Interop.Excel.Application Myexcel = new Microsoft.Office.Interop.Excel.Application();
if (Myexcel == null)
{
return;
}
Microsoft.Office.Interop.Excel._Workbook xBk;
xBk = Myexcel.Application.Workbooks.Add(true);
Microsoft.Office.Interop.Excel._Worksheet xSt;
xSt = (Microsoft.Office.Interop.Excel._Worksheet)xBk.ActiveSheet;
//设置标题等
string Title = null;
Title = DateTime.Now.ToLongDateString() + "报价表";
xSt.Name = Title;
//报表的格式设置
//xSt.Cells[1, 6] = Title;
// xSt.get_Range(Myexcel.Cells[1, 6], Myexcel.Cells[1, 6]).HorizontalAlignment = Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter;//设置标题格式为居中对齐
// xSt.get_Range(Myexcel.Cells[1, 6], Myexcel.Cells[1, 6]).Font.Bold = true;
//xSt.get_Range(Myexcel.Cells[1, 6], Myexcel.Cells[1, 6]).Font.Size = 20;
xSt.Cells[1, 1] = "品号";
xSt.Cells[1, 2] = "品名";
xSt.Cells[1, 3] = "客户品号";
xSt.Cells[1, 4] = "图片";
xSt.Cells[1, 5] = "客户编码";
xSt.Cells[1, 6] = "客户名称";
xSt.Cells[1, 7] = "数量";
xSt.Cells[1, 8] = "币种";
xSt.Cells[1, 9] = "汇率";
xSt.Cells[1, 10] = "原币单价";
xSt.Cells[1, 11] = "原币总价";
xSt.Cells[1, 12] = "本币单价";
xSt.Cells[1, 13] = "本币总价";
xSt.Cells[1, 14] = "创建时间";
//下面是用循环把datagridview中的内容写到excel
for (int rowIndex = 0; rowIndex < this.dgvQuotation.Rows.Count; rowIndex++)
{
int colIndex = 0;
for (colIndex = 1; colIndex <= dgvQuotation.ColumnCount; colIndex++)
{
String value = null;
if (dgvQuotation.Rows[rowIndex].Cells[colIndex - 1].Value != null)
{
value = dgvQuotation.Rows[rowIndex].Cells[colIndex - 1].Value.ToString();
if (dgvQuotation.Columns[colIndex - 1].Name == "图片") //处理
{
Image img;
//如果是二进制形式:
//MemoryStream ms = new MemoryStream((byte[])dgvQuotation.Rows[rowIndex].Cells[colIndex - 1].Value);
if (File.Exists(@"D:\产品图片\" + dgvQuotation.Rows[rowIndex].Cells[0].Value.ToString() + ".jpg"))
{
//需要判断是否存在图片
img = Image.FromFile(@"D:\产品图片\" + dgvQuotation.Rows[rowIndex].Cells[0].Value.ToString() + ".jpg");//双引号里是图片的路径
}
else
{
//需要判断是否存在图片
img = Image.FromFile(@"D:\产品图片\LOGO.jpg");//双引号里是图片的路径
}
//Image img = Image.FromStream(ms);
//路径
// Image img = GetImage(value);
string tmpName = tmpPath + "\\temp" + rowIndex + ".bmp";
img.Save(tmpName);
string cellAddr = (GetAddress(rowIndex + 4, colIndex));
Microsoft.Office.Interop.Excel.Range range = (Microsoft.Office.Interop.Excel.Range)xSt.get_Range(cellAddr, Type.Missing);
float left = float.Parse(range.Left.ToString());
float top = float.Parse(range.Top.ToString());
float width = float.Parse(range.Width.ToString());
float height = float.Parse(range.Height.ToString());
xSt.Shapes.AddPicture(tmpName, MsoTriState.msoFalse, MsoTriState.msoTrue, left, top, width, height);
//xSt.Shapes.AddPicture(tmpName, MsoTriState.msoFalse, MsoTriState.msoTrue, left, top, 200, 200);
continue;
}
}
xSt.Cells[rowIndex + 4, colIndex] = value;
}
}
//后台处理
//用户无法看到
Myexcel.Visible = false;
//允许打开对话框保存文件
Myexcel.DisplayAlerts = true;
// xBk.Close(true, "D:\\1.xls", null);
xSt = null;
xBk = null;
Myexcel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(Myexcel);
Myexcel = null;