我有一个autocompleteextender [英] I have an autocompleteextender

问题描述

我有使用TextBox的autocompleteextender但是当页面加载时它给我这个错误：



错误：无法获取属性'UI'的值：对象是null或undefined



On



$ create（Sys.Extended.UI.AutoCompleteBehavior，{completionSetCount ：20，delimiterCharacters：，id：AutoCompleteExtender2，serviceMethod：SearchLaborsUsernames，servicePath：WebServices / MyWebService.asmx}，null，null，$ get（txtXXX ））;



当我开始填充TextBox时，从不调用Web服务中的函数（调试时它永远不会到达我的Web服务中的函数）。 />


为什么不工作????我错过了什么。



代码：

< asp：UpdatePanel runat =serverID =UpdatePanelLaborNameChildrenAsTriggers =true> 
< ContentTemplate> 
< asp：TextBox ID =txtXXXrunat =serverCssClass =inputWidth =190pxAutoPostBack =true>< / asp：TextBox> 
< cc1：autocompleteextender id =AutoCompleteExtender2runat =servercompletioninterval =1000
 completionsetcount =20enablecaching =trueservicemethod =SearchLaborsUsernames
 servicepath = 〜/ WebServices / MyWebService.asmxtargetcontrolid =txtXXXminimumprefixlength =3> 
< / cc1：autocompleteextender> 
< / ContentTemplate> 
< triggers> 
< asp：AsyncPostBackTrigger ControlID =txtYYYEventName =TextChanged/> 
< /触发器> 
< / asp：UpdatePanel> 

顶部我有ScriptManager：

< asp：ScriptManager ID =ScriptManager1runat =server> 
< / asp：ScriptManager> 
 

和TagPrefix：

<％@ Register Assembly =AjaxControlToolkitNamespace = AjaxControlToolkitTagPrefix =cc1％> 

解决方案

create（Sys.Extended.UI.AutoCompleteBehavior，{completionSetCount：20 ，delimiterCharacters：，id：AutoCompleteExtender2，serviceMethod：SearchLaborsUsernames，servicePath：WebServices / MyWebService.asmx}，null，null，

< blockquote> get（txtXXX））;



当我开始填充TextBox时，Web服务中的函数永远不会被调用（调试时它永远不会到达函数我的网络服务。



为什么它不工作????我错过了什么。



代码：

< asp：UpdatePanel runat =serverID =UpdatePanelLaborNameChildrenAsTriggers =true> 
< ContentTemplate> 
< asp：TextBox ID =txtXXXrunat =serverCssClass =inputWidth =190pxAutoPostBack =true>< / asp：TextBox> 
< cc1：autocompleteextender id =AutoCompleteExtender2runat =servercompletioninterval =1000
 completionsetcount =20enablecaching =trueservicemethod =SearchLaborsUsernames
 servicepath = 〜/ WebServices / MyWebService.asmxtargetcontrolid =txtXXXminimumprefixlength =3> 
< / cc1：autocompleteextender> 
< / ContentTemplate> 
< triggers> 
< asp：AsyncPostBackTrigger ControlID =txtYYYEventName =TextChanged/> 
< /触发器> 
< / asp：UpdatePanel> 

顶部我有ScriptManager：

< asp：ScriptManager ID =ScriptManager1runat =server> 
< / asp：ScriptManager> 
 

和TagPrefix：

<％@ Register Assembly =AjaxControlToolkitNamespace = AjaxControlToolkitTagPrefix =cc1％> 

与解决方案类似的错误消息，试试这个

http://ajaxcontroltoolkit.codeplex.com/workitem/26907 [ ^ ]



编辑

------ ----------

ASP.NET'Sys.Extended.UI'为null或者不是使用AjaxControlToolkit的对象错误 [ ^ ]

其他整洁的东西 [ ^ ]

使用脚本参考Profiler来提高ASP.NET AJAX的性能页面 [ ^ ]

I have autocompleteextender with TextBox but when the page load it give me this error:

Error: Unable to get value of the property 'UI': object is null or undefined

On

$create(Sys.Extended.UI.AutoCompleteBehavior, {"completionSetCount":20,"delimiterCharacters":"","id":"AutoCompleteExtender2","serviceMethod":"SearchLaborsUsernames","servicePath":"WebServices/MyWebService.asmx"}, null, null, $get("txtXXX"));

And when I start filling the TextBox the function in web service is never called (While debugging it never reach the function in my web service).

Why it is not working???? am I missing something.

Code:

<asp:UpdatePanel runat="server" ID="UpdatePanelLaborName" ChildrenAsTriggers="true">
                            <ContentTemplate> 
                                <asp:TextBox ID="txtXXX" runat="server" CssClass="input" Width="190px" AutoPostBack="true"></asp:TextBox>
                                <cc1:autocompleteextender id="AutoCompleteExtender2"  runat="server" completioninterval="1000"
                                    completionsetcount="20" enablecaching="true" servicemethod="SearchLaborsUsernames"
                                    servicepath="~/WebServices/MyWebService.asmx" targetcontrolid="txtXXX" minimumprefixlength="3">
                                </cc1:autocompleteextender>
                            </ContentTemplate>
                            <triggers>
                                <asp:AsyncPostBackTrigger ControlID="txtYYY" EventName="TextChanged" />
                            </triggers>
                        </asp:UpdatePanel>       

At top I have the ScriptManager:

<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>

And the TagPrefix:

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

解决方案

create(Sys.Extended.UI.AutoCompleteBehavior, {"completionSetCount":20,"delimiterCharacters":"","id":"AutoCompleteExtender2","serviceMethod":"SearchLaborsUsernames","servicePath":"WebServices/MyWebService.asmx"}, null, null,

get("txtXXX"));

And when I start filling the TextBox the function in web service is never called (While debugging it never reach the function in my web service).

Why it is not working???? am I missing something.

Code:

<asp:UpdatePanel runat="server" ID="UpdatePanelLaborName" ChildrenAsTriggers="true">
                            <ContentTemplate> 
                                <asp:TextBox ID="txtXXX" runat="server" CssClass="input" Width="190px" AutoPostBack="true"></asp:TextBox>
                                <cc1:autocompleteextender id="AutoCompleteExtender2"  runat="server" completioninterval="1000"
                                    completionsetcount="20" enablecaching="true" servicemethod="SearchLaborsUsernames"
                                    servicepath="~/WebServices/MyWebService.asmx" targetcontrolid="txtXXX" minimumprefixlength="3">
                                </cc1:autocompleteextender>
                            </ContentTemplate>
                            <triggers>
                                <asp:AsyncPostBackTrigger ControlID="txtYYY" EventName="TextChanged" />
                            </triggers>
                        </asp:UpdatePanel>       

At top I have the ScriptManager:

<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>

And the TagPrefix:

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

Similar error message with solution, try this
http://ajaxcontroltoolkit.codeplex.com/workitem/26907[^]

EDIT
----------------
ASP.NET ‘Sys.Extended.UI’ is null or not an object error using AjaxControlToolkit[^]
Other neat stuff[^]
Using Script reference Profiler to Improve the Performance of an ASP.NET AJAX page[^]

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