按钮-Button

按钮添加JaveScript代码

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

    }