GridView里的按钮事件

问题参考：

下面是Insus.NET实现演示：

CObj.cs代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

/// <summary>
/// Summary description for CObj
/// </summary>
namespace Insus.NET
{
    public class CObj
    {
        private int _Nbr;
        private int _Val;
                

        public int Nbr
        {
            get { return _Nbr; }
            set { _Nbr = value; }
        }

        public int Val
        {
            get { return _Val; }
            set { _Val = value; }
        }
        public CObj()
        {
            //
            // TODO: Add constructor logic here
            //
        }
    }
}

GridView代码：

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" Width="230px" OnRowCreated ="GridView1_RowCreated">
                <Columns>
                    <asp:TemplateField>
                        <HeaderTemplate>
                            key
                        </HeaderTemplate>
                        <ItemTemplate>
                            <%# Eval("Nbr") %>
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField>
                        <HeaderTemplate>
                            Value
                        </HeaderTemplate>
                        <ItemTemplate>
                            <asp:Label ID="LabelVal" runat="server" Text='<%# Eval("Val") %>'></asp:Label>
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField>
                        <HeaderTemplate>
                            operator
                        </HeaderTemplate>
                        <ItemTemplate>
                            <asp:Button ID="ButtonAdd" runat="server" Text="+" />&nbsp;&nbsp;
                            <asp:Button ID="ButtonSubtract" runat="server" Text="-" />
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>
            </asp:GridView>

引用  using Insus.NET;

 

xxx.aspx.cs代码：

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Data_Binding();
        }
    }

    private void Data_Binding()
    {
        List<CObj> MyObj = new List<CObj>();

        CObj o = new CObj();
        o.Nbr = 1;
        o.Val = 100;
        MyObj.Add(o);

        this.GridView1.DataSource = MyObj;
        this.GridView1.DataBind();
    }

    protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType != DataControlRowType.DataRow) return;

        if (e.Row.FindControl("ButtonAdd") != null)
        {
            var ButtonAdd = e.Row.FindControl("ButtonAdd") as Button;
            ButtonAdd.Click += ButtonAdd_Click;
        }

        if (e.Row.FindControl("ButtonSubtract") != null)
        {
            var ButtonSubtract = e.Row.FindControl("ButtonSubtract") as Button;
            ButtonSubtract.Click += ButtonSubtract_Click;
        }
    }

    private void ButtonAdd_Click(object sender, EventArgs e)
    {
        var button = sender as Button;
        GridViewRow gvr = (GridViewRow)button.Parent.Parent;
        var Label = (Label)this.GridView1.Rows[gvr.RowIndex].FindControl("LabelVal");
        int v = Convert.ToInt32(Label.Text);
        Label.Text = (v + 1).ToString();
    }

    private void ButtonSubtract_Click(object sender, EventArgs e)
    {
        var button = sender as Button;
        GridViewRow gvr = (GridViewRow)button.Parent.Parent;
        var Label = (Label)this.GridView1.Rows[gvr.RowIndex].FindControl("LabelVal");
        int v = Convert.ToInt32(Label.Text);
        Label.Text = (v - 1).ToString();
    }

 于 11：46分，Insus.NET添加二笔记录，分别测试每一行效果：