.NET Excel 2003 批量插入数据很慢的解决办法-建站知识-成都网站建设|郫县网页制作|微信开发|微信商城-中原动力

文章系统图片系统下载系统个人求职企业招聘房产系统展会系统供求系统产品系统商城系统自定义系统后台一览

建站知识

.NET Excel 2003 批量插入数据很慢的解决办法

来源：网络作者：网络

.Net利用Office组件的操作Excel批量插入数据据的时候，会非常慢。
我也曾经想利用其它组件来实现这个功能，但是效果不是很理想。后来经过查阅资料，发现Excel.Range的Value属性是Object的二维数组。
于是我想，不去遍历每个单元格，而是一次取得所要操作区域（Range）的Value属性，对这个二维数组操作，最后再把这个二维数组赋回去，就大功能告成了。

经过编码测试，与我想象中的一样，速度非常之快。
之前代码：

Dim app As New Excel.Application

app.Visible = True

Dim book As Excel.Workbook = app.Workbooks.Add()

Dim sheet As Excel.Worksheet = book.Sheets(1)

For i As Integer = 1 To 1000

For j As Integer = 1 To 26

sheet.Cells(i, j).Value = "R" & i & "C" & j

Dim app As New Excel.Application

app.Visible = True

Dim book As Excel.Workbook = app.Workbooks.Add()

Dim sheet As Excel.Worksheet = book.Sheets(1)

Dim ary As Object(,) = sheet.Range("A1:Z1000").Value

For i As Integer = 1 To 1000

For j As Integer = 1 To 26

ary(i, j) = "R" & i & "C" & j

sheet.Range("A1:Z1000").Value = ary

附上C#的代码

            Excel.Application app = new Excel.Application();
            app.Visible = true;
            Excel.Workbook book = app.Workbooks.Add(Missing.Value);
            Excel.Worksheet sheet = (Excel.Worksheet)(book.Sheets[1]);

            object[,] ary = (object[,])(sheet.get_Range("A1:Z1000", Missing.Value).Value2);

            for (int i = 1; i <= 1000; i++)
            {
                for (int j = 1; j <= 26; j++)
                {
                    ary[i, j] = "R" + i.ToString() + "C" + j.ToString();
                }
            }

            sheet.get_Range("A1:Z1000", Missing.Value).Value2 = ary;