VB datagridview底部合计
如何在datagridview的最后一行做某列值的和或是乘积。要计算3、4、5列各列的和,
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
DataGridView1.Rows.Add(TextBox3.Text, TextBox2.Text)
For i As Int32 = 0 To DataGridView1.Rows.Count - 1
DataGridView1.Rows(i).Cells(2).Value = DataGridView1.Rows(i).Cells(0).Value * _
DataGridView1.Rows(i).Cells(1).Value
DataGridView1.Rows(i).Cells(3).Value = DataGridView1.Rows(i).Cells(2).Value * _
CDbl(Val(TextBox1.Text))
DataGridView1.Rows(i).Cells(4).Value = DataGridView1.Rows(i).Cells(2).Value * _
CDbl(Val(Text
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6表示毫米
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'初始坐标
x = 1
y = 4
'最大的线筐
Printer.DrawStyle = 0
Printer.Line (x, y)-(x + 132.5, y) ......
从网上找了一个版本，源代码如下：
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Option Explicit
'Global DefLang As String
Const WebURL As String = "http://translate.google.com/translate_t"
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共有4个示例顶点缓存InstanceVB1，InstanceVB2,InstanceVB3，InstanceVB4，它们的值都是通过一个循环进行赋值，请问可以如下操作吗，怎么操作效率最高？
InstanceVB1->Lock（...);
InstanceVB2->Loc ......
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'sqlstr = "INSERT INTO useinfo " & "(usename ,password)" & " values (' " & usename & " ' " & ",'" & password & ......
