为什么不能我使用`Invokemember（QUOT;按一下[）`点击我的按钮编程？ [英] Why cant I use `Invokemember("click")` to click my button programatically?

问题描述

我试图从一个网站的数据在我的应用程序通过 WebBrowserControl 取。我可以成功登录，但是当我打电话 btnsearch.Invokemember（点击）编程我收到一个JavaScript错误。如果我按一下按钮交互方式上的 WebBrowserControl 我收到任何错误，一切工作正常。

在aspx页面我有一个JavaScript函数调用一个Ajax面板：

 ＆LT;脚本类型=文/ JavaScript的＆GT;
/ *＆LT;！[CDATA [* /
窗口[ctl00_WorkSpace_ctlCustAVIHistory_ajxResultPanel] =新RadAjaxPanelNamespace.RadAjaxPanel({ClientID:\"ctl00_WorkSpace_ctlCustAVIHistory_ajxResultPanel\",EnableOutsideScripts:false,EnablePageHeadUpdate:true,Url:\"/app/ModuleCustomer/ViewAVITransactions.aspx\",LoadingPanelID:\"ctl00_WorkSpace_ctlCustAVIHistory_LoadingPanel1\",ActiveElementID:\"\",ClientEvents:{OnRequestStart:\"\",OnRequestSent:\"\",OnResponseReceived:\"\",OnResponseEnd:\"\"},FormID:\"aspnetForm\",UniqueID:\"ctl00$WorkSpace$ctlCustAVIHistory$ajxResultPanel\"});/*]]>*/
＆LT; / SCRIPT＆GT;
 

它产生的UniqueID。如果我们通过code点击 btnsearch 这种独特的id为null。

 函数onClickButton（RNAME）
{
    如果（是validateData（））
    {
        。的document.getElementById（ctl00_WorkSpace_ctlCustAVIHistory_hdnReset）值=0;
        ctl00_WorkSpace_ctlCustAVIHistory_ajxResultPanel.AjaxRequest（NewSearch）; ///这些caling关闭功能
    }
}RadAjaxPanelNamespace.RadAjaxPanel.prototype.AjaxRequest =功能（eventArgument）{
    this.AjaxRequestWithTarget（this.UniqueID，eventArgument）; // this.UniqueID给从方案点击鼠标点击空被赋予正确ID
};
 

任何想法，为什么出现这种情况？

解决方案

 私人常量字符串STR_Field_userid =field_userid;
    私人常量字符串STR_Field_password =field_password;
    私人常量字符串STR_Submit =提交;        的document.getElementById（STR_Field_userid）.InnerText =用户ID;
        的document.getElementById（STR_Field_password）.InnerText =密码;
        document.Forms [0] .InvokeMember（STR_Submit）;
 

I am trying to fetch data from a website in my application through a WebBrowserControl. I can successfully log in, but when I call btnsearch.Invokemember("click") programmatically I receive a JavaScript error. If I click the button interactively on the WebBrowserControl I receive no error and everything works fine.

In the aspx page I have one JavaScript function for calling an Ajax Panel:

<script type="text/javascript">
/*<![CDATA[*/   
window["ctl00_WorkSpace_ctlCustAVIHistory_ajxResultPanel"] = new RadAjaxPanelNamespace.RadAjaxPanel({ClientID:"ctl00_WorkSpace_ctlCustAVIHistory_ajxResultPanel",EnableOutsideScripts:false,EnablePageHeadUpdate:true,Url:"/app/ModuleCustomer/ViewAVITransactions.aspx",LoadingPanelID:"ctl00_WorkSpace_ctlCustAVIHistory_LoadingPanel1",ActiveElementID:"",ClientEvents:{OnRequestStart:"",OnRequestSent:"",OnResponseReceived:"",OnResponseEnd:""},FormID:"aspnetForm",UniqueID:"ctl00$WorkSpace$ctlCustAVIHistory$ajxResultPanel"});/*]]>*/
</script>

It produces a UniqueID. If we click on btnsearch through code this unique id is null.

function onClickButton(rName) 
{
    if(validateData())
    {     
        document.getElementById("ctl00_WorkSpace_ctlCustAVIHistory_hdnReset").value = "0";    
        ctl00_WorkSpace_ctlCustAVIHistory_ajxResultPanel.AjaxRequest("NewSearch"); ///these caling down function       
    }      
}

RadAjaxPanelNamespace.RadAjaxPanel.prototype.AjaxRequest = function (eventArgument) {       
    this.AjaxRequestWithTarget(this.UniqueID, eventArgument);//this.UniqueID giving null from program click mouse click it is giving correct id 
};

Any idea why this happens?

解决方案

    private const string STR_Field_userid = "field_userid";
    private const string STR_Field_password = "field_password";
    private const string STR_Submit = "submit";            

        document.GetElementById(STR_Field_userid).InnerText = UserId;
        document.GetElementById(STR_Field_password).InnerText = Password;
        document.Forms[0].InvokeMember(STR_Submit);

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