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我有這個代碼的簡單用戶控件:ASP.NET:按鈕在用戶控件不回發
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="Pager.ascx.cs" Inherits="Pager" %>
<table style="width: 100%;">
<tr>
<td runat="server" id="PageControls">
<!-- This button has the problem: -->
<asp:Button ID="btnPrevPage" runat="server" Text="←" OnClick="btnPrevPage_Click" />
Page
<asp:DropDownList runat="server" ID="ddlPage" AutoPostBack="true" OnSelectedIndexChanged="ddlPage_SelectedIndexChanged" />
of
<asp:Label ID="lblTotalPages" runat="server" />
<!-- This button has the problem: -->
<asp:Button ID="btnNextPage" runat="server" Text="→" OnClick="btnNextPage_Click" />
</td>
<td align="right" runat="server" id="itemsPerPageControls">
<asp:Literal ID="perPageText1" runat="server" />
<asp:DropDownList ID="ddlItemsPerPage" runat="server" AutoPostBack="true" OnSelectedIndexChanged="ddlItemsPerPage_SelectedIndexChanged" />
<asp:Literal ID="perPageText2" runat="server" />
</td>
</tr>
</table>
正如你所看到的,2個按鈕連接到單擊事件,這是在正確定義代碼隱藏。
現在,這裏是我包括我的頁面上的控件的實例:
<uc:Pager ID="Pager1" runat="server" TotalRecords="100" DisplayItemsPerPage="true"
ItemsPerPageChoices="10,25,50,100" ItemsPerPageFormatString="Sessions/Page: {0}"
PageSize="25" OnPageChanged="PageChanged" OnPageSizeChanged="PageChanged" />
我注意到雖然,在我的用戶控制2個按鈕,點擊後並沒有引起後背部。不過,下拉列表確實會導致回發。以下是呈現的HTML:
<table style="width: 100%;">
<tr>
<td id="ctl00_MainContent_Pager1_PageControls" align="left">
<!-- No onclick event! Why? -->
<input type="submit" name="ctl00$MainContent$Pager1$btnPrevPage" value="←" id="ctl00_MainContent_Pager1_btnPrevPage" />
Page
<select name="ctl00$MainContent$Pager1$ddlPage" onchange="javascript:setTimeout('__doPostBack(\'ctl00$MainContent$Pager1$ddlPage\',\'\')', 0)"
id="ctl00_MainContent_Pager1_ddlPage">
<option value="1">1</option>
<option selected="selected" value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
</select>
of <span id="ctl00_MainContent_Pager1_lblTotalPages">6</span>
<!-- No onclick event! Why? -->
<input type="submit" name="ctl00$MainContent$Pager1$btnNextPage" value="→" id="ctl00_MainContent_Pager1_btnNextPage" />
</td>
<td id="ctl00_MainContent_Pager1_itemsPerPageControls" align="right">
Sessions/Page:
<select name="ctl00$MainContent$Pager1$ddlItemsPerPage" onchange="javascript:setTimeout('__doPostBack(\'ctl00$MainContent$Pager1$ddlItemsPerPage\',\'\')', 0)"
id="ctl00_MainContent_Pager1_ddlItemsPerPage">
<option value="10">10</option>
<option selected="selected" value="25">25</option>
<option value="50">50</option>
<option value="100">100</option>
</select>
</td>
</tr>
</table>
而且,正如您所看到的,在按鈕的輸入元素中沒有呈現onclick屬性。爲什麼不?
編輯
羅尼,你爲什麼這麼愚蠢??? <input type="submit" />
不使用JavaScript發佈表單!
我有頁面上的jQuery驗證。向按鈕添加cssclass =「cancel」會導致它們不會導致驗證。我沒有看到驗證錯誤,因爲它們顯示在隱藏的模式對話框中。 – 2010-04-23 17:22:32