C# DataGridView导出到Excel_c# dgv to excel-优快云博客

本文链接：https://blog.youkuaiyun.com/formiss/article/details/6846449

本文介绍了一种将DataGridView中的数据导出到Excel的方法。通过使用SaveFileDialog获取文件路径，并利用StreamWriter进行数据写入，实现从DataGridView到Excel的简单转换。

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      private void ExportToExcel(DataGridView dgvGF_IN_INFO)
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog();
            saveFileDialog.Filter = "Execl files (*.xls)|*.xls";
            saveFileDialog.FilterIndex = 0;
            saveFileDialog.RestoreDirectory = true;
            saveFileDialog.CreatePrompt = true;
            saveFileDialog.Title = "保存为Excel文件";
            saveFileDialog.ShowDialog();

if (saveFileDialog.FileName.IndexOf(":") < 0) return; //被点了"取消"

            Stream myStream;
            myStream = saveFileDialog.OpenFile();
            StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding(-0));
            string columnTitle = "";
            try
            {
                //写入列标题
                for (int i = 0; i < dgvGF_IN_INFO.ColumnCount; i++)
                {
                    if (dgvGF_IN_INFO.Columns[i].Visible)
                    {
                        if (i > 0)
                        {
                            columnTitle += "\t";
                        }

                        columnTitle += dgvGF_IN_INFO.Columns[i].HeaderText;
                    }
                }
                sw.WriteLine(columnTitle);

                //写入列内容
                for (int j = 0; j < dgvGF_IN_INFO.Rows.Count; j++)
                {
                    string columnValue = "";
                    for (int k = 0; k < dgvGF_IN_INFO.Columns.Count; k++)
                    {
                        if (dgvGF_IN_INFO.Rows[j].Cells[k].Visible)
                        {
                            if (k > 0)
                            {
                                columnValue += "\t";
                            }

                            if (dgvGF_IN_INFO.Rows[j].Cells[k].Value == null)
                                columnValue += "";
                            else
                                columnValue += dgvGF_IN_INFO.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();
            }
        }