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分享高分求解 当前页面上那个控件获得了焦点
假设1个aspx页面上有2个TextBox 2个DropDownList 我想知道这4个控件中 那个控件获得了焦点.请问这个问题如何解决?谢谢!
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singlepine 2006-06-28
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<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
<script language="javascript">
function focuswhat(obj)
{
//debugger;
document.getElementById("Label1").innerText=obj.id;
}
</script>
</head>
<body scroll=yes>
<form id="form1" runat="server">
<div>
<asp:DropDownList ID="DropDownList1" runat="server">
<asp:ListItem Value=1>1</asp:ListItem>
</asp:DropDownList>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:DropDownList ID="DropDownList2" runat="server">
<asp:ListItem Value=2>2</asp:ListItem>
</asp:DropDownList>
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
<asp:Label ID="Label1" runat="server" Text="Label" Width="78px"></asp:Label></div>
</form>
</body>
</html>
protected void Page_Load(object sender, EventArgs e)
{
this.TextBox1.Attributes.Add("onfocus", "focuswhat(this);");
this.TextBox2.Attributes.Add("onfocus", "focuswhat(this);");
this.DropDownList1.Attributes.Add("onfocus", "focuswhat(this);");
this.DropDownList2.Attributes.Add("onfocus", "focuswhat(this);");
}
<head runat="server">
<title>Untitled Page</title>
<script language="javascript">
function focuswhat(obj)
{
//debugger;
document.getElementById("Label1").innerText=obj.id;
}
</script>
</head>
<body scroll=yes>
<form id="form1" runat="server">
<div>
<asp:DropDownList ID="DropDownList1" runat="server">
<asp:ListItem Value=1>1</asp:ListItem>
</asp:DropDownList>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:DropDownList ID="DropDownList2" runat="server">
<asp:ListItem Value=2>2</asp:ListItem>
</asp:DropDownList>
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
<asp:Label ID="Label1" runat="server" Text="Label" Width="78px"></asp:Label></div>
</form>
</body>
</html>
protected void Page_Load(object sender, EventArgs e)
{
this.TextBox1.Attributes.Add("onfocus", "focuswhat(this);");
this.TextBox2.Attributes.Add("onfocus", "focuswhat(this);");
this.DropDownList1.Attributes.Add("onfocus", "focuswhat(this);");
this.DropDownList2.Attributes.Add("onfocus", "focuswhat(this);");
}
yybb520 2006-06-28
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用JAVa脚本可以实现！
huhong81312 2006-06-28
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