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ASP.NET 2.0 - Enter Key - Default Submit Button

 2006-08-23 17:14:06 来源:WEB开发网   
核心提示: 网页开发中最烦人的事情之一就是为表单处理"Enter key" ,"Enter key"已经成为用户提交表单的偏好,虽然我们为用户提供了提交按钮,ASP.NET 2.0 - Enter Key - Default Submit Button,但是最简单也是最直接的方式仍然是:输

网页开发中最烦人的事情之一就是为表单处理"Enter key" ,"Enter key"已经成为用户提交表单的偏好。虽然我们为用户提供了提交按钮,但是最简单也是最直接的方式仍然是:输入文字,然后回车完成提交

asp.net 2.0中为此提供了很好的解决方法。只需要将"defaultbutton"属性指定到想要引发事件的按钮控件的ID上就可以了。

在表单级别和面板级别(<asp:panel> 标记)均可以指定"defaultbutton"。当表单和面板中同时指定了defaultbutton,则如果在面板中触发了"Enter key",则执行面板中的

下面的实例代码中有一个表单和4个面板,报单和面板中都有按钮。情各位注意:在文本框中回车后会触发哪些按钮的事件

<form id="form1" runat="server" defaultbutton="btn1">

<div>


<asp:TextBox ID="txt" runat="server"></asp:TextBox>


<asp:Button ID="Button5" runat="server" Text="Cancel" />


<asp:Button ID="btn1" runat="server" Text="Submit" />


<asp:Panel ID="pnl1" runat="server" defaultbutton="Button1">


<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>


<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>


<asp:Button ID="Button1" runat="server" Text="Button1" />


</asp:Panel>


<asp:Panel ID="Panel1" runat="server" defaultbutton="Button2">


<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>


<asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>


<asp:Button ID="Button2" runat="server" Text="Button2" />


</asp:Panel>


<asp:Panel ID="Panel2" runat="server" defaultbutton="Button3">


<asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>


<asp:TextBox ID="TextBox6" runat="server"></asp:TextBox>


<asp:Button ID="Button3" runat="server" Text="Button3" />


</asp:Panel>


<asp:Panel ID="Panel3" runat="server" defaultbutton="Button4">


<asp:TextBox ID="TextBox7" runat="server"></asp:TextBox>


<asp:TextBox ID="TextBox8" runat="server"></asp:TextBox>


<asp:Button ID="Button4" runat="server" Text="Button4" />


</asp:Panel>


</div>


</form>

The corresponding, sample events for the button clicks are


PRotected void Button1_Click(object sender, EventArgs e)
{
Response.Write(Button1.Text);
}


protected void Button2_Click(object sender, EventArgs e)
{
Response.Write(Button2.Text);
}


protected void Button3_Click(object sender, EventArgs e)
{
Response.Write(Button3.Text);
}


protected void Button4_Click(object sender, EventArgs e)
{
Response.Write(Button4.Text);
}


protected void btn1_Click(object sender, EventArgs e)
{
Response.Write(btn1.Text);
}


protected void Button5_Click(object sender, EventArgs e)
{
Response.Write(Button5.Text);
}


原文:http://forums.asp.net/thread/1270048.aspx


原文:http://forums.asp.net/thread/1270048.aspx
 代码下载

实在不知道"Entry key"应该如何翻译,请各位指教。
谢谢

Tags:ASP NET Enter

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