如何在单击按钮时立即将 dataGridView 数据导出到 Excel? [英] How to export dataGridView data Instantly to Excel on button click?

问题描述

我的数据网格视图中有 10k 行和 15 列.我想将此数据导出到 Excel 表 o 按钮单击.我已经尝试过下面的代码.

I have 10k rows and 15 column in my data grid view. I want to export this data to an excel sheet o button click. I have already tried with the below code.

private void btExport_Click(object sender, EventArgs e)
    {
        Microsoft.Office.Interop.Excel._Application app  = new Microsoft.Office.Interop.Excel.Application();
        Microsoft.Office.Interop.Excel._Workbook workbook =  app.Workbooks.Add(Type.Missing);        
        Microsoft.Office.Interop.Excel._Worksheet worksheet = null;                   
        app.Visible = true;
        worksheet = workbook.Sheets["Sheet1"];
        worksheet = workbook.ActiveSheet;                  
        for(int i=1;i<dataGridView1.Columns.Count+1;i++)
        {
             worksheet.Cells[1, i] = dataGridView1.Columns[i-1].HeaderText;
        }    
        for (int i=0; i < dataGridView1.Rows.Count-1 ; i++)
        {
            for(int j=0;j<dataGridView1.Columns.Count;j++)
            {
                if (dataGridView1.Rows[i].Cells[j].Value != null)
                {
                    worksheet.Cells[i + 2, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString();
                }
                else
                {
                    worksheet.Cells[i + 2, j + 1] = "";
                }
            }
        }
    }

这对我有用，但完成导出过程需要很多时间.

是否可以从 dataGridView(包含 10k 行)导出以在单击按钮时立即表现出色?

除此之外，当我尝试将所有 dataGridview 内容复制到剪贴板，然后手动将其粘贴到 Excel 工作表时，它几乎立即发生.

Other than this, when I tried copy all dataGridview contents to clip board and then paste it to excel sheet manually, it happen almost instantly.

那么有没有办法通过单击按钮将所有 dataGridView 单元格复制到剪贴板并粘贴到 Excel 工作表(带有单元格格式)?

我有复制到剪贴板的代码，如下所示，但我不知道如何通过打开将其粘贴到新的 Excel 工作表中.

I have code for copy to clipboard as below, but I don't know how to paste it in to a new excel sheet by opening it.

        private void copyAllToolStripMenuItem_Click(object sender, EventArgs e)
    {
        dataGridView1.SelectAll();
        DataObject dataObj = dataGridView1.GetClipboardContent();
        if (dataObj != null)
            Clipboard.SetDataObject(dataObj);
    }

请帮忙举个例子.我是 C# 新手.

Please help with an example. I am new to C#.

推荐答案

我通过简单的复制和粘贴方法解决了这个问题.我不知道这是最好的方法，但是，对我来说，它效果很好，而且几乎是即时的.这是我的代码.

I solved this by simple copy and paste method. I don't know it is the best way to do this but,for me it works good and almost instantaneously. Here is my code.

    private void copyAlltoClipboard()
    {
        dataGridView1.SelectAll();
        DataObject dataObj = dataGridView1.GetClipboardContent();
        if (dataObj != null)
            Clipboard.SetDataObject(dataObj);
    }
    private void button3_Click_1(object sender, EventArgs e)
    {
        copyAlltoClipboard();
        Microsoft.Office.Interop.Excel.Application xlexcel;
        Microsoft.Office.Interop.Excel.Workbook xlWorkBook;
        Microsoft.Office.Interop.Excel.Worksheet xlWorkSheet;
        object misValue = System.Reflection.Missing.Value;
        xlexcel = new Excel.Application();
        xlexcel.Visible = true;
        xlWorkBook = xlexcel.Workbooks.Add(misValue);
        xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
        Excel.Range CR = (Excel.Range)xlWorkSheet.Cells[1, 1];
        CR.Select();
        xlWorkSheet.PasteSpecial(CR, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, true);          
    }

谢谢.

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