Question

vb net data grid view计算列的问题

data grid view是绑定数据库

这段代码出错
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim count As Integer = Me.DataGridView1.Rows.Count
Dim sum As Double = 0
For i = 0 To count - 1
sum += Val(Me.DataGridView1.Item("Amount", i).Value)
Next
MsgBox("和是:" & sum)
End Sub

未能找到名为 Amount 的列。 参数名: columnName

Answer 1

改成这个试试呢？

.Item(3, i)