vb.net datagridview列求和

String[] s={"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};

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System.out.print("請(qǐng)輸入數(shù)字（1-12）：");

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

String str=br.readLine();

int m=Integer.parseInt(str);

if (m=0||m=13)

{

VB.NET 中datagrid一列怎么求和

Dim textColumn As New DataGridViewTextBoxColumn() '定義一個(gè)新的textbox格式的列

textColumn.Name = "Column1" '定義該列的Name

textColumn.HeaderText = "Column1" '定義該列的標(biāo)題

DataGridView1.Columns.Add(textColumn)

For Each r As DataGridViewRow In DataGridView1.Rows '循環(huán)DataGridView的行

r.Cells(textColumn.Index).Value = r.Cells(0).Value + r.Cells(1).Value '將第一列和第二列單元格數(shù)據(jù)相加，并顯示在新添加的單元格上

Next

vb.net中怎么對(duì)listview字段中的數(shù)據(jù)進(jìn)行求和

循環(huán)相加即可

Private?Sub?Button1_Click(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?Button1.Click

Dim?sum?As?Double?=?0

For?i?=?0?To?ListView1.Items.Count?-?1?'

sum?+=?Val(ListView1.Items(i).SubItems(2).Text)

Next

MsgBox("消費(fèi)金額："??sum)

End?Sub