Active Directory Change Password

protected void Button1_Click(object sender, EventArgs e)

{
if (this.txtNewPassword.Text.Length >= 0)
{

if (this.txtNewPassword.Text.Equals(this.txtConfirmPassword.Text))
{
DirectoryEntry entry;
char[] sep ={ '\\' };
string[] strArray = this.Context.User.Identity.Name.Split(sep);
if (this.isLocalAccount())
{

try

{
// Connect to Active Directory and get the DirectoryEntry object.
// Note, ADPath is an Active Directory path pointing to a user.

entry = new DirectoryEntry("WinNT://" + strArray[0] + "/" + strArray[1], this.Context.User.Identity.Name, this.txtOldPassword.Text, AuthenticationTypes.Secure);
}

catch (Exception exception1)

{

lblMsg.Text = exception1.Message.ToString();

return;

}

try

{

object objectValue = RuntimeHelpers.GetObjectValue(entry.Invoke("ChangePassword", new object[] { this.txtOldPassword.Text, this.txtNewPassword.Text }));

}

catch (Exception exception5)

{



lblMsg.Text = exception5.Message.ToString();

return;

}

}

else

{

try

{

string[] propertiesToLoad = new string[] { "sAMAccountName", "cn" };

DirectorySearcher searcher = new DirectorySearcher("(sAMAccountName=" + strArray[1] + ")", propertiesToLoad);

searcher.SearchRoot.Username = this.Context.User.Identity.Name;

searcher.SearchRoot.Password = this.txtOldPassword.Text;



// You would have created this which searches AD for the specified user

// and returns its DirectoryEntry object or path. See here.

SearchResult result = searcher.FindOne();

if (result == null)

{



lblMsg.Text = "The User was not found in the Active Directory";

}

entry = new DirectoryEntry(result.Path, this.Context.User.Identity.Name, this.txtOldPassword.Text);

// entry.RefreshCache();





DirectorySearcher search = new DirectorySearcher(entry);

search.Filter = "sAMAccountName=" + strArray[1].ToString(); ;

SearchResult result1 = search.FindOne();

DirectoryEntry user = result1.GetDirectoryEntry();

string NewPassword = this.txtNewPassword.Text;

user.Invoke("SetPassword", new object[] { NewPassword });

lblMsg.Text = "Password has been changed successfully.";





}

catch (Exception exception6)

{



lblMsg.Text = exception6.Message.ToString();

return;

}



}



// lblMsg.Text = lblMsg.Text + this.SuccessMessage;

}

else

{



// lblMsg.Text = lblMsg.Text + this.ErrorMessagePasswordMatch;

}

}

else

{



lblMsg.Text = "Password doesn’t match requirements.";

}





}