.NET Excel 2003 批量插入数据很慢的解决办法

.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
Next
Next之后代码：

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)

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
Next
Next

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;