本文实例分析了ASP.NET2.0使用Enter Key作为默认提交的方法。分享给大家供大家参考,具体如下:
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
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<form id= "form1" runat= "server" defaultbutton= "btn1" > <div> <asp:TextBox ID= "txt" runat= "server" ></asp:TextBox> <asp:Button ID= "Button5" runat= "server" Text= "Cancel" OnClick= "Button5_Click" /> <asp:Button ID= "btn1" runat= "server" Text= "Submit" OnClick= "btn1_Click" /> <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" OnClick= "Button1_Click" /> </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" OnClick= "Button2_Click" /> </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" OnClick= "Button3_Click" /> </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" OnClick= "Button4_Click" /> </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); } |
完整实例代码代码点击此处本站下载。
希望本文所述对大家asp.net程序设计有所帮助。