Export (0) Print
Expand All
Expand Minimize
This topic has not yet been rated - Rate this topic

HtmlElementInsertionOrientation Enumeration

Defines values that describe where to insert a new element when using InsertAdjacentElement.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)
public enum HtmlElementInsertionOrientation
Member nameDescription
AfterBeginInsert the element after the current element, but before all other content in the current element.
AfterEndInsert the element after the current element, but after all other content in the current element.
BeforeBeginInsert the element before the current element.
BeforeEndInsert the element after the current element.

The following code example inserts a DIV element into the top of every page that users view outside of the ADatum.com server. The example requires that your form contains a WebBrowser control named WebBrowser1. Your example must also import the namespace System.Text.RegularExpressions.

		public void AddDivMessage()
		{
			Uri currentUri = new Uri(webBrowser1.Url.ToString());
			String hostName = null;

			// Ensure we have a host name, and not just an IP, against which to test. 
			if (!(currentUri.HostNameType == UriHostNameType.Dns))
			{
				DnsPermission permit = new DnsPermission(System.Security.Permissions.PermissionState.Unrestricted);
				permit.Assert();

				IPHostEntry hostEntry = System.Net.Dns.GetHostEntry(currentUri.Host);
				hostName = hostEntry.HostName;
			} else {
				hostName = currentUri.Host;
			}

			if (!hostName.Contains("adatum.com"))
			{
				AddTopPageMessage("You are viewing a web site other than ADatum.com. " +
					"Please exercise caution, and ensure your Web surfing complies with all " +
					"corporate regulations as laid out in the company handbook.");
			}
		}

		private void AddTopPageMessage(String message)
		{
			if (webBrowser1.Document != null) 
			{
				HtmlDocument doc = webBrowser1.Document;

                // Do not insert the warning again if it already exists. 
                HtmlElementCollection returnedElems = doc.All.GetElementsByName("ADatumWarningDiv");
                if ((returnedElems != null) && (returnedElems.Count > 0)) 
				{
                    return;
				}

                HtmlElement divElem = doc.CreateElement("DIV");
                divElem.Name = "ADatumWarningDiv";
                divElem.Style = "background-color:black;color:white;font-weight:bold;width:100%;";
                divElem.InnerText = message;

                divElem = doc.Body.InsertAdjacentElement(HtmlElementInsertionOrientation.AfterBegin, divElem);
			}
		}

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft. All rights reserved.