本文實(shí)例分析了ASP.NET2.0使用Enter Key作為默認(rèn)提交的方法。分享給大家供大家參考，具體如下：
網(wǎng)頁開發(fā)中最煩人的事情之一就是為表單處理"Enter key" ,"Enter key"已經(jīng)成為用戶提交表單的偏好。雖然我們?yōu)橛脩籼峁┝颂峤话粹o，但是最簡單也是最直接的方式仍然是：輸入文字，然后回車完成提交
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(fā)事件的按鈕控件的ID上就可以了。
在表單級(jí)別和面板級(jí)別（asp:panel> 標(biāo)記）均可以指定"defaultbutton"。當(dāng)表單和面板中同時(shí)指定了defaultbutton，則如果在面板中觸發(fā)了"Enter key",則執(zhí)行面板中的
下面的實(shí)例代碼中有一個(gè)表單和4個(gè)面板，報(bào)單和面板中都有按鈕。情各位注意：在文本框中回車后會(huì)觸發(fā)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(shí)例代碼代碼點(diǎn)擊此處本站下載。
希望本文所述對(duì)大家asp.net程序設(shè)計(jì)有所幫助。
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