本文實例分析了ASP.NET2.0使用Enter Key作為默認提交的方法。分享給大家供大家參考,具體如下:
網頁開發中最煩人的事情之一就是為表單處理"Enter key" ,"Enter key"已經成為用戶提交表單的偏好。雖然我們為用戶提供了提交按鈕,但是最簡單也是最直接的方式仍然是:輸入文字,然後回車完成提交
ASP.NET 2.0中為此提供了很好的解決方法。只需要將"defaultbutton"屬性指定到想要引發事件的按鈕控件的ID上就可以了。
在表單級別和面板級別(<asp:panel> 標記)均可以指定"defaultbutton"。當表單和面板中同時指定了defaultbutton,則如果在面板中觸發了"Enter key",則執行面板中的
下面的實例代碼中有一個表單和4個面板,報單和面板中都有按鈕。情各位注意:在文本框中回車後會觸發哪些按鈕的事件
<form id="form1" runat="server" defaultbutton="btn1"> <div> <asp:TextBox ID="txt" runat="server"></asp:TextBox> <asp:Button ID="Button5" runat="server" Text="Cancel" 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); }
完整實例代碼代碼點擊此處本站下載。
希望本文所述對大家asp.net程序設計有所幫助。