检测AutoCompleteExtender选择事件

捕获AutoCompleteExtender选择事件的最佳方法是什么，因为控件没有此事件？检测AutoCompleteExtender选择事件

这里是我正在谈论的示例。我有两个带有链接AutoCompleteExtender控件的texbox（Location1TextBox，Location2TextBox）。这部分运作良好。现在的问题是，当用户从任何我需要捕获此事件并尝试计算location1和location2之间距离的AutoCompleteExtender进行选择时。结果应该自动填充到DistanceTextBox。有什么好的建议？我只希望它不会与onchange事件的文本框结束了......

<asp:UpdatePanel ID="UpdatePanel2" runat="server"> 
     <ContentTemplate> 
      <asp:Label ID="TitleLabel" runat="server" Text='<% $resources:AppResource,LocationStart %>' 
       CssClass="OneColumnLabel"></asp:Label>:<br /> 
      <asp:TextBox ID="Location1TextBox" runat="server" CssClass="TwoColumnMiddleLongText" 
       ValidationGroup="Edit" AutoPostBack="true"></asp:TextBox>* 
      <asp:RequiredFieldValidator ID="TitleRequiredFieldValidator" runat="server" ControlToValidate="Location1TextBox" 
       Display="None" ErrorMessage='<% $resources:AppResource,LocationRequired %>' ValidationGroup="Edit"></asp:RequiredFieldValidator> 
      <ajaxToolkit:AutoCompleteExtender runat="server" ID="AutoCompleteExtender1" TargetControlID="Location1TextBox" 
       ServiceMethod="GetCompletionList" ServicePath="TravelOrder.aspx" MinimumPrefixLength="1" 
       CompletionInterval="300" UseContextKey="True"> 
      </ajaxToolkit:AutoCompleteExtender> 
      <asp:Label ID="Label7" runat="server" Text='<% $resources:AppResource,LocationArrival %>' 
       CssClass="OneColumnLabel"></asp:Label>:<br /> 
      <asp:TextBox ID="Location2TextBox" runat="server" CssClass="TwoColumnMiddleLongText" 
       ValidationGroup="Edit"></asp:TextBox>* 
      <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ControlToValidate="Location2TextBox" 
       Display="None" ErrorMessage='<% $resources:AppResource,LocationRequired %>' ValidationGroup="Edit"></asp:RequiredFieldValidator> 
      <ajaxToolkit:AutoCompleteExtender runat="server" ID="AutoCompleteExtender2" TargetControlID="Location2TextBox" 
       ServiceMethod="GetCompletionList" ServicePath="TravelOrder.aspx" MinimumPrefixLength="1" 
       CompletionInterval="300" UseContextKey="True"> 
      </ajaxToolkit:AutoCompleteExtender> 
      <asp:Label ID="Label8" runat="server" Text='<% $resources:AppResource,Distance %>' 
       CssClass="OneColumnLabel"></asp:Label>:<br /> 
      <asp:TextBox ID="DistanceTextBox" runat="server" CssClass="OneColumnText" ValidationGroup="Edit"></asp:TextBox>* 
      <asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ControlToValidate="DistanceTextBox" 
       Display="None" ErrorMessage='<% $resources:AppResource,DistanceRequired %>' ValidationGroup="Edit"></asp:RequiredFieldValidator> 
     </ContentTemplate> 
    </asp:UpdatePanel>

来源

2012-10-11 Gregor Primar

你可以从目标文本删除AutoPostBack="true"，认购对TextChanged事件，并使用下面的功能处理程序itemSelected扩展的客户端事件OnClientItemSelected="autoCompleteEx_ItemSelected"：

<script type="text/javascript"> 
    function autoCompleteEx_ItemSelected(sender, args) { 
      __doPostBack(sender.get_element().name, ""); 
    } 
</script>

来源

2012-10-12 08:40:29

尤里你救了我的一天！这正是我所期待的，很好而且有效！ :) –

检测AutoCompleteExtender选择事件

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