C# jQueryEvent.PreventDefault方法代碼示例

		public static void InputKeypressHandler(jQueryEvent evt, InputElement el, TransformCharDelegate transformChar) {
			if (evt.AltKey || evt.CtrlKey)
				return; // don't ever change Alt+key or Ctrl+key

			if (jQuery.Browser.MSIE) {
				if (evt.Which == 13)
					return; // Enter seems to be the only non-printable key we catch in IE.
				char newc = transformChar((char)evt.Which);
				if (newc == 0) {
					evt.PreventDefault();
				}
				else if (newc != evt.Which) {
					((dynamic)evt).originalEvent.keyCode = newc;
				}
			}
			else {
				if (evt.Which == 0)
					return; // Firefox, and likely other non-IE browsers, lets us trap non-characters, but we don't want that.

				char newc = transformChar((char)evt.Which);
				if (newc == 0) {
					evt.PreventDefault();
				}
				else if (newc != evt.Which) {
					int startPos = ((dynamic)el).selectionStart,
					    endPos   = ((dynamic)el).selectionEnd;
					string oldVal = el.Value;
					el.Value = oldVal.Substr(0, startPos) + String.FromCharCode(newc) + oldVal.Substr(endPos);
					((dynamic)el).setSelectionRange(startPos + 1, startPos + 1);
					evt.PreventDefault();
				}
			}
		}

        private void SubmitForm(jQueryEvent e)
        {
            e.PreventDefault();

            string currentPassword = jQuery.Select("#change-password-current-password").GetValue();
            string password = jQuery.Select("#change-password-new-password").GetValue();
            string password2 = jQuery.Select("#change-password-new-password2").GetValue();

            if (currentPassword == "" || password == "" || password2 == "" || submittingForm)
            {
                return;
            }

            if (password.Length < 8 || password != password2)
            {
                ErrorModal.ShowError(Strings.Get("AddUserInvalidInput"));
                return;
            }

            submittingForm = true;

            ChangePasswordRequest request = new ChangePasswordRequest();
            request.currentPassword = currentPassword;
            request.newPassword = password;
            request.newPassword2 = password2;

            Request.Send(request, SubmitSuccess, SubmitFailure);
        }

		private void OnAddNearbyClick(jQueryEvent e)
		{
			try
			{
				Service.GetSurroundingPlaces(
					int.Parse(this.view.uiRadiusPlaceAutoComplete.Value),
					int.Parse(this.view.uiNumberOfSurroundingTownsDropDown.Value),
					delegate(PlaceStub[] result, object context, string name)
					{
						for (int i = 0; i < result.Length; i++)
						{
							this.view.uiPlacesMultiSelector.AddItem(result[i].name, result[i].k.ToString());
						}
						this.view.uiRadiusPlaceAutoComplete.Clear();
					},
					Trace.WebServiceFailure,
					null,
					5000
				);
				
			}
			catch(Exception)
			{
				
			}
			e.PreventDefault();
		}

		private void OnKeyDown(jQueryEvent e)
		{
			if ("ABCDEFGHIJKLMNOPQRSTUVWXYZ,.;#[]".IndexOf(String.FromCharCode(e.Which)) > -1)
			{
				e.PreventDefault();
			}
		}

        private void SubmitForm(jQueryEvent e)
        {
            e.PreventDefault();

            string name = jQuery.Trim(jQuery.Select("#admin-user-add-name").GetValue());
            string password = jQuery.Select("#admin-user-add-password").GetValue();
            string password2 = jQuery.Select("#admin-user-add-password2").GetValue();

            if (name == "" || password == "" || password2 == "" || submittingForm)
            {
                return;
            }

            RegularExpression regex = new RegularExpression("[^a-zA-Z0-9]");

            if (regex.Test(name) || password.Length < 8 || password != password2)
            {
                ErrorModal.ShowError(Strings.Get("AddUserInvalidInput"));
                return;
            }

            submittingForm = true;

            AdminUserAddRequest request = new AdminUserAddRequest();
            request.username = name;
            request.password = password;
            request.password2 = password2;
            request.admin = jQuery.Select("#admin-user-add-administrator").Is(":checked");

            Request.Send(request, SubmitSuccess, SubmitFailure);
        }

        private void ReportLinkClick(jQueryEvent e)
        {
            e.PreventDefault();

            var dialog = new ReportDialog(new ReportDialogOptions
            {
                ReportKey = J(e.Target).GetDataValue("key").As<string>()
            });
        }

        private void NavMangasClicked(jQueryEvent e)
        {
            e.PreventDefault();

            if (this.GetType() != typeof(AdminMangasModule))
            {
                AdminMangasModule.Instance.Show(null);
            }
        }

        private void NavLogoutClicked(jQueryEvent e)
        {
            e.PreventDefault();

            LoginRequest request = new LoginRequest();
            request.password = "logout";

            Request.Send(request, LogoutSuccessful, LogoutSuccessful);
        }

        private void NavSettingsClicked(jQueryEvent e)
        {
            e.PreventDefault();

            if (this.GetType() != typeof(SettingsModule))
            {
                SettingsModule.Instance.Show(null);
            }
        }

        private void NavFoldersClicked(jQueryEvent e)
        {
            e.PreventDefault();

            if (this.GetType() != typeof(FoldersModule))
            {
                FoldersModule.Instance.Show(null);
            }
        }

		void GoLicense(jQueryEvent evt)
		{
			evt.PreventDefault ();
			Work.Empty ();
			Work.Append (@"<div class=""well"">
			             <p>Copyright AICL.</p>
			             <p>Licensed under the Apache License, Version 2.0 (the ""License""); you may not use this work except in compliance with the License. You may obtain a copy of the License in the LICENSE file, or at:</p><p><a target=""_blank"" href=""http://www.apache.org/licenses/LICENSE-2.0"">http://www.apache.org/licenses/LICENSE-2.0</a></p><p>Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an ""AS IS"" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.</p></div>");

			             }

        private void BrowseButtonClicked(jQueryEvent e)
        {
            e.PreventDefault();

            if (collectionId > 0)
            {
                AdminFinderModal.ShowDialog(jQuery.Select("#admin-manga-edit-path"), collectionId);
            }
        }

		void GoContact(jQueryEvent evt)
		{
			evt.PreventDefault ();
			Work.Empty ();
			Work.Append (@"<div class=""well"">
	<p><a target=""_blank"" href=""https://github.com/angelcolmenares"">https://github.com/angelcolmenares</a>
	<p><a target=""_blank"" href=""https://github.com/aicl"">https://github.com/aicl</a>
	</p></div>");

		}

		void GoAbout(jQueryEvent evt)
		{
			evt.PreventDefault ();
			Work.Empty ();
			Work.Append (@"<div class=""well"">
<p>Cayita is a library for building responsive webapps using C#  as base language and the Saltarelle compiler 
<a href=""http://www.saltarelle-compiler.com"" target=""_blank"">
http://www.saltarelle-compiler.com
</a>
</p>
</p></div>");

		}

		protected void KeyDown(jQueryEvent e)
		{
			if (e.Which == (int)39/*Key.Right*/)
			{
				if (OnArrowKeyPress != null)
					OnArrowKeyPress(this, EventArgs.Empty);
				if (OnPhotoNextClick != null)
					OnPhotoNextClick(this, EventArgs.Empty);
				e.PreventDefault();
			}
			else if (e.Which == (int)37/*Key.Left*/)
			{
				if (OnArrowKeyPress != null)
					OnArrowKeyPress(this, EventArgs.Empty); 
				if (OnPhotoPrevClick != null)
					OnPhotoPrevClick(this, EventArgs.Empty);
				e.PreventDefault();
			}
			//else if (e.KeyCode == (int)Key.Up)
			//{
			//    if (OnArrowKeyPress != null)
			//        OnArrowKeyPress(this, EventArgs.Empty);
			//    if (OnPhotoUpClick != null)
			//        OnPhotoUpClick(this, EventArgs.Empty);
			//    e.PreventDefault();
			//}
			//else if (e.KeyCode == (int)Key.Down)
			//{
			//    if (OnArrowKeyPress != null)
			//        OnArrowKeyPress(this, EventArgs.Empty);
			//    if (OnPhotoDownClick != null)
			//        OnPhotoDownClick(this, EventArgs.Empty);
			//    e.PreventDefault();
			//}
			else
			{
				NonArrowKeyDown(e);
			}
		}