我正在使用MVVM并希望将WebBrowser与我的ViewModel(-property)绑定。我已经使用此方法来执行可绑定的WebBrowser:http://pastebin.com/1SwwQgJZ
无论如何,我想基于XML文件动态创建一个公式。我的应用程序如下所示:用户打开WPF程序并使用他的帐户登录。在此之后,另一个View正在弹出,其中包含一个WebBrowser& WPF包含一个带有一些XML文件的组合框。用户可以选择XML文件并根据其内容更新WebBrowser的源代码。我会这样做(只是一个剪辑,告诉你我如何创建HTML文件):
foreach(Question q in QuestionList)
foreach(Answer a in AnswerList)
_reportpage + = "<td> " + _reportpage + "</td>";
所以我想创建一个表单,后面看起来像这样:
good middle bad
How do you feel? [ ] [ ] [X]
How was school? [X] [ ] [ ]
[]是radiobuttons。创建这样的表单不是问题,问题是将数据发送回ViewModel ...我想知道用户点击了哪个答案并将其保存到“答案”列表中。我该怎么办呢?
由于我必须动态创建WPF表单并希望在WPF / WP8 / W8 / Silverlight上使用它,因此这种方法在我看来是最好的方法,因为所有平台都可以处理HTML。
编辑:我正在创建这样的HTML文件:
_reportpage = "<table border='2'>";
_reportpage += "<tr><td></td>";
foreach (T_Answer answer in AnswerList)
{
_reportpage += "<td>" + answer.Text + "</td>";
}
_reportpage += "</tr>";
foreach (T_Question tq in QuestionList)
{
_reportpage += "<tr><td>" + tq.Text + "</td>";
foreach (T_Answer ta in tq.Answer)
{
_reportpage += "<td><input type='radio' name='" + tq.ID + "' value='" + ta.Answer.ID + "'>" + ta.Answer.Text + "</td>";
}
_reportpage += "</tr>";
}
_reportpage += "</table>";
_reportpage += "<input type='button' value='Submit'>";
答案 0 :(得分:0)
按照我的意愿得到它。
Bindable WebBrowser:
<WebBrowser html:WebBrowserUtility.BindableSource="{Binding ReportPage, Mode=TwoWay}" Name="webbrowser" />
在VM中
private string _reportpage;
public string ReportPage
{
get
{
return _reportpage;
}
set
{
if (_reportpage != value)
{
_reportpage = value;
RaisePropertyChanged(() => ReportPage);
}
}
}
ReportPage是HTML文件,它将动态创建,如下所示:
_reportpage = "<?xml version='1.0' encoding='UTF-8' standalone='yes'?><html><head><meta http-equiv='Content-Type' content='text/html; charset=utf-8' /><title>'" + title + "</title></head><body><h1>" + title + "</h1>...................";
代码背后:
private readonly MainViewModel _viewModel;
public MainWindow()
{
InitializeComponent();
webbrowser.LoadCompleted += new LoadCompletedEventHandler(webbrowser_LoadCompleted);
_viewModel = DataContext as MainViewModel;
}
private void webbrowser_LoadCompleted(object sender, NavigationEventArgs e)
{
mshtml.HTMLDocument doc;
doc = (mshtml.HTMLDocument)webbrowser.Document;
mshtml.HTMLDocumentEvents2_Event iEvent;
iEvent = (mshtml.HTMLDocumentEvents2_Event)doc;
iEvent.onclick += new mshtml.HTMLDocumentEvents2_onclickEventHandler(ClickEventHandler);
}
private bool ClickEventHandler(mshtml.IHTMLEventObj pEvtObj)
{
_viewModel.HTMLObject = pEvtObj;
return true;
}
现在我在ViewModel中有HTMLObject,我可以从HTML访问数据。
private mshtml.IHTMLEventObj _htmlobject;
public mshtml.IHTMLEventObj HTMLObject
{
get
{
return _htmlobject;
}
set
{
_htmlobject = value;
if (_htmlobject.srcElement.tagName == "INPUT" && _htmlobject.srcElement.getAttribute("type") == "radio")
{
string QuestionID = _htmlobject.srcElement.getAttribute("name");
string AnswerID = _htmlobject.srcElement.getAttribute("defaultValue");
//Foreach Question and foreach answer, check the ID with the ID's of the collections and do some stuff
}
else if (_htmlobject.srcElement.tagName == "INPUT" && _htmlobject.srcElement.getAttribute("type") == "button")
{
//I have only 1 button, so if the user clicks the button, formular should be send
SendFormular();
}
}
}