按钮-Button

按钮添加JaveScript代码

1<asp:Button ID="Button1" runat="server" Height="28px" Text="点我" Width="93px"
2onmouseover="c=this.style.backgroundColor; this.style.backgroundColor='#00ff99'; this.style.width='150';"
3onmouseout="this.style.backgroundColor=c;this.style.width='93';" Font-Bold="true"/>

按钮添加属性

protected void Button2_Load(object sender, EventArgs e)
    {
        
        Button2.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#00ff99';");
        Button2.Attributes.Add("onmouseout", "this.style.backgroundColor=c");
        Button2.Text = DateTime.Now.ToString();
    }

按钮CommandName属性
PS:三个按钮同时触发button2_Click事件，根据事件惩罚者((Button)sender)的CommandName来判断

<asp:Button ID="Button2" runat="server" CommandName="a" OnClick="Button2_Click" Text="小明" OnLoad="Button2_Load" />
        <asp:Button ID="Button3" runat="server" CommandName="b" OnClick="Button2_Click" Text="小里" />&nbsp;
        <asp:Button ID="Button4" runat="server" CommandName="c" OnClick="Button2_Click" Text="小王" />

protected void Button2_Click(object sender, EventArgs e)
    {
        switch (((Button)sender).CommandName)
        {
            case "a":
                lb1.Text = ((Button)sender).Text;
                break;
            case "b":
                lb1.Text = ((Button)sender).Text;
                break;
            default:
                lb1.Text = "33333";
                break;
        }

    }