今天做机房收费系统做到了报表打印部分了。

在将dataGridView中的数据导出到excel时，到网上找了一些相关的内容，个人感觉不是太好，有的在复杂了。

下面是简单的实现dataGridView数据到excel:

当然首先要添加引用：Microsoft.Office.Interop.Excel

 Dim MyExcel As New Microsoft.Office.Interop.Excel.Application()
        MyExcel.Application.Workbooks.Add()
        MyExcel.Visible = True

        '获取标题
        Dim Cols As Integer
        For Cols = 1 To DataGridView1.Columns.Count
            MyExcel.Cells(1,Cols) = DataGridView1.Columns(Cols - 1).HeaderText
        Next

        '往excel表里添加数据()
        Dim i As Integer
        For i = 0 To DataGridView1.RowCount - 1
            Dim j As Integer
            For j = 0 To DataGridView1.ColumnCount - 1
                If Me.DataGridView1(j,i).Value Is System.DBNull.Value Then

                    MyExcel.Cells(i + 2,j + 1) = ""
                Else
                    MyExcel.Cells(i + 2,j + 1) = DataGridView1(j,i).Value.ToString

                End If
            Next j
        Next i