c# itextsharp create barcode webBrowser1.NavigateToString(@"<html> in Word

Generation Quick Response Code in Word webBrowser1.NavigateToString(@"<html>

webBrowser1.NavigateToString(@"<html>
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CHAPTER 8 WEBBROWSER CONTROL
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<body><center><div style='font: Arial 12px;'> Which Ford model would you like to see <br><br> <a href='http://www.bing.com/images/search q=cars+Ford+Mustang'>Ford Mustang</a> or <a href='http://www.bing.com/images/search q=cars+Ford+F150'>Ford F150</a></div></center></body></html>"); 3. Press F5 to run the application. Now if you type Ford in the text box and press the Show It! button, you should see a dynamically generated HTML message with hyperlinks asking you to clarify which Ford model you would like to see, just like Figure 8 3.
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Note Of course, users will get this response no matter what they type, but delving into more complex search logic is not the purpose of this chapter.
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Figure 8 3. Showing dynamically generated HMTL content Many web-based applications have been built, from translators to elaborate e-commerce systems, and all of them are easily accessible and could even be potentially enhanced with the use of the WebBrowser control on Windows Phone 7. But the WebBrowser control can do even more: in the next section, we will learn how to save the web pages locally, so that we can potentially parse certain information or search within them.
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Saving Web Pages Locally
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You can also save the contents of web sites and web pages to a Windows Phone 7 as strings of HTML commands, using isolated storage and the SaveToString method of the WebBrowser control. This approach saves only the HTML on a page (of course, you probably already guessed that from the name of the method!) and ignores its images and CSS files. After saving HTML to Isolated Storage, you can load it on demand, but before doing that, make sure to read the security considerations at the end of this chapter. The next walkthrough will show you how to save an HTML web page locally and then load it at a later time. 1. 2. Open the WebBrowserSample project and bring up MainPage.xaml in the design window. Add two buttons to the Windows Phone 7 design surface, as shown in Figure 8 4. Change the Content property of the top button to save to local storage. Change the Content property of the bottom button to load saved content. Make sure to change the names of both buttons, as shown in Figure 8 4. You can change the name in the Properties window by clicking next to the Button text. Name the top button btnSave and name the bottom button btnLoad . Next, let s write the event handler code for the Save button click. Double-click the top button to bring up MainPage.xaml.cs in the code view. Change the btnSave_Click method to be identical to the following: private void btnSave_Click(object sender, RoutedEventArgs e) { string strWebContent = webBrowser1.SaveToString(); SaveStringToIsoStore(strWebContent); } 5. Next comes event handler code to load the previously saved web page. Doubleclick the bottom button and make the btnLoad_Click method look like the code block here. private void btnLoad_Click(object sender, RoutedEventArgs e) { webBrowser1.Navigate(new Uri("web.htm", UriKind.Relative)); } 6. Jumping ahead to what will be covered in 13 again, we need to add the implementation of the SaveStringToIsoStore method that will perform the actual save of the HTML string to a file in the local storage. private void SaveStringToIsoStore(string strWebContent) { IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication(); //remove the file if exists to allow each run to independently write to // the Isolated Storage if (isoStore.FileExists("web.htm") == true) { isoStore.DeleteFile("web.htm"); }
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CHAPTER 8 WEBBROWSER CONTROL
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StreamResourceInfo sr = new StreamResourceInfo(new MemoryStream(System.Text.Encoding.UTF8.GetBytes(strWebContent)), "html/text"); using (BinaryReader br = new BinaryReader(sr.Stream)) { byte[] data = br.ReadBytes((int)sr.Stream.Length); //save file to Isolated Storage using (BinaryWriter bw = new BinaryWriter(isoStore.CreateFile("web.htm"))) { bw.Write(data); bw.Close(); } } } 7. Make sure the button1_Click event looks identical to the one here:
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private void button1_Click(object sender, RoutedEventArgs e) { webBrowser1.Navigate(new Uri ("http://www.bing.com/images/search q=cars " + textBox1.Text, UriKind.Absolute)); } 8. You are now ready to test the application. Press F5 to run it, type Ford Mustang in the text box, and press the Show It! button. Photos of the Ford Mustang should appear in the browser window. Next, press Save Content to Isolated Storage button. Then, erase the word Mustang from the text box, leaving only Ford and pressing Show It! Our friendly reminder that we need to provide more information pops up. Finally, press Load Saved Content to show the (distorted) thumbnails of the Ford Mustang.
Notice that the content is distorted since only HTML of the web page is saved. Many CSS stylesheets that control positioning of the elements and their look are not persisted as part of the SaveToString method.
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