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POWebBrowser control doesn't populate on first iteration if loading two controls
 

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    <p>The issue I am having is I have a WebBrowser control called "Browser." The browser is populated from a different controls created by MEF:</p> <pre><code> //Apply Button that cretes the HTML that is loaded into the Browser btnCreateHTMLPreview(object sender, RoutedEventArgs e) { //Clears the content of the observable collection contents.Clear(); //usedControls is an observable collection of all loaded controls in the stack panel foreach(var control in usedControls) control.CreateHTML(); } //Code in the MEF Control that creates the HTML that is will be loaded into the browser CreateHTML() { string tempStuff = null; tempStuff += "&lt;h1&gt;" + MyControl.lblHeader.Content + "&lt;/h1&gt;\n"; tempStuff += MyControl.txtTextGoesHere.Text + "\n"; //Give the HTML back to the Application parent.AcceptReport(tempStuff); } //Application side where it accepts the HTML and loads it into the Browser AcceptHTML(string passedInContent) { //Observable collection that holds the content of all possible MEF Controls contents.Add(passedInContent); string tempStuffForBrowser = null; tempStuffForBrowser = "&lt;html&gt;\n"; tempStuffForBrowser += "&lt;body&gt;\n"; //Add the content that was saved earlier foreach (var strInd in contents) tempStuffForBrowser += strInd; tempStuffForBrowser = "&lt;html&gt;\n"; tempStuffForBrowser += "&lt;body&gt;\n"; Browser.NavigateToString(tempStuffForBrowser); } </code></pre> <p>I did my best above to try and provide the meat of how I am populating the html and add that back into the browser. If there is anything that is unclear please just let me know.</p> <p>If I have just one control added so that "content" only has the one control in it when I click the button to load the html, it works just fine and loads it in. However if I have more than one control loaded, I have to click that button twice to get it to show. I found this extremely bizarre. My attempt to solve this was to check and see if there was content in the Browser before leaving the event, but I am unsure how to do this. If anyone has any suggestions or any other ideas on how to solve this problem please let me know.</p>
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