C# 由DataGridView导出到Excel

C# 由DataGridView导出到Excel

C#语言: 由 dataGridView导出到Excel

private void buttonToExcel_Click( object sender , EventArgs e)
{

    SaveFileDialog saveFileDialog = new SaveFileDialog();
    saveFileDialog . Filter = "Execl files (*.xls)|*.xls";
    saveFileDialog . FilterIndex = 0;
    saveFileDialog . RestoreDirectory = true;
    saveFileDialog . CreatePrompt = true;
    saveFileDialog . Title = "Export Excel File To";
    saveFileDialog . ShowDialog();
    Stream myStream;
    myStream = saveFileDialog . OpenFile();
    StreamWriter sw = new StreamWriter( myStream , System . Text . Encoding . GetEncoding (- 0));
    string str = "";
    try
    {
        //写标题
        for ( int i = 0; i < this . dataGridView3 . ColumnCount; i ++)
        {
            if ( i > 0)
            {
                str += "\t";
            }

            str += this . dataGridView3 . Columns [ i ]. HeaderText;
        }
        sw . WriteLine( str);
        //写内容
        for ( int j = 0; j < this . dataGridView3 . Rows . Count; j ++)
        {
            string tempStr = "";
            for ( int k = 0; k < this . dataGridView3 . Columns . Count; k ++)
            {
                if ( k > 0)
                {
                    tempStr += "\t";
                }
                tempStr += this . dataGridView3 . Rows [ j ]. Cells [ k ]. Value + "";
            }
            sw . WriteLine( tempStr);
        }

        sw . Close();
        myStream . Close();
    }
    catch ( Exception ex)
    {
        MessageBox . Show( ex . ToString());
    }

    finally
    {
        sw . Close();
        myStream . Close();
    }    
    MessageBox . Show( "OK");
}