The above is the code generated for asp server button button control on browser. Now my query is that irrespective of ValidateValue() returning true/false __doPostBack('ApplyBtn','') function is not showing any effect for me. My understanding is that string passed to onclick acts like function body, and return will from first function will return control preventing second function from execution.
Is that correct?
Obviously I am a total noob and this is simple to some of you, but I can not figure out why the rest of the sub works, but the button1.Text="Uploading, Please Wait..." seems to be completely ignored.
The button is supposed to change text when clicked but no method I have tried works with my page.
How do I setup a default setting so that if I do not set an OnClick (i.e the asp.net OnClick attribute) explicitly for an asp:LinkButton tag, it will not render an onclick(html attribute for javascript) attribute client side? By default, asp.net adds an onclick='doPostBack....' for the LinkButton.
Case for use:
There is a LinkButton tag on the page. For this page, if the user has one friend, I only want to run client side code if the button is clicked and would not for any reason want to make a post back. If the user has more than one friend I would want a click to trigger a postback.
Using any asp.net Ajaxtoolkit
Dynamically switching the control type (i.e. if friends == 1 use a asp:Hyperlink)
-I want to avoid this because it is not scalable. There might be many cases where I want an asp:Link tag to do a postback or to not do a postback depending on the user context or user attributes Using OnClientClick (I am using jQuery would like to avoid this)
Void button has a confirm box after receiving true, expecting running another button's click event however, Void2_Button_Click not run, where is wrong?
protected void Void2_Button_Click(object sender, EventArgs e) { // do something } Void_Button.Attributes.Add("onclick", "var agree=confirm('Confirm to void?'); if (agree){document.getElementById('Void2_Button').click();}");
I would like to add an Onclick event to one button (ShipEdit is the name of the button), I would like to redirect user by clicking this button to new page that is (../Account/MyAccount.aspx) and send 2 variables that is (LineItem.LineKey and shipment.ShipmentKey) with the URL: I need to write a code in this module:
Have a form with a button and some text fields on it.When I hit enter after filling a field the event for the button fires up event onClick.How can I get around this since on one of the fields I have a textchangeEvent I to fire up.
I have the following code and no matter what I do onclick event for button is not firing. I tried deleting the button, the pages. Redid the code. Moved the web project to a different computer and nothing. It worked a few hours ago.
I am having trouble with two buttons on a page. I dragged them on to the page and then double- clicked each of them in order to create the OnClick events.
I added my code to the events, but when I click the buttons, their respective events aren't being called.
MdsMenu:MenuItem is my custom WebControl. If I insert a Button control out of MdsMenu:MenuItem tag it works well but if I inserted it within MdsMenu:MenuItem tag it doesn't fire the concerned method. What's wrong with my code?
Edit: Menu.cs using System; using System.Collections.Generic; using System.ComponentModel; using System.Linq; using System.Text; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Security.Permissions; using System.Collections; using System.ComponentModel.Design; using System.Drawing.Design; using System.Web.UI.HtmlControls; using System.IO; namespace MenuServerControl { [AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)] [DefaultProperty("MenuItems")] [ParseChildren(true, "MenuItems")] [ToolboxData("<{0}:Menu runat="server"> </{0}:Menu>")] public class Menu : WebControl { #region Fields private List<MenuItem> _MenuItems; string _Direction { get { string direction = ""; switch (this.Direction) { case Directions.LeftToRight: direction = "direction:ltr;"; break; case Directions.RightToLeft: direction = "direction:rtl;"; break; default: direction = "direction:rtl;"; break; } return direction; } } string _AnimationDelay { get { if (AnimationDelay == null) AnimationDelay = 1000; return AnimationDelay.ToString().ToLower(); } } string _AnimationType { get { switch (this.AnimationType) { case AnimationType.Opacity_Height: return "animation:{opacity:'show',height:'show'}"; case AnimationType.Opacity_Width: return "animation:{opacity:'show',width:'show'}"; case AnimationType.Opacity: return "animation:{opacity:'show'}"; case AnimationType.Height: return "animation:{height:'show'}"; case AnimationType.Width: return "animation:{width:'show'}"; case AnimationType.Height_Toggle: return "animation: {height: 'toggle'}"; case AnimationType.Width_Toggle: return "animation: {width: 'toggle'}"; default: return "animation:{opacity:'show',height:'show'}"; } } } string _AnimationSpeed { get { switch (this.AnimationSpeed) { case AnimationSpeed.Fast: return "speed:'fast'"; case AnimationSpeed.Normal: return "speed:'normal'"; case AnimationSpeed.Slow: return "speed:'slow'"; default: return "speed:'fast'"; } } } string FloatStyle { get { if (Direction == Directions.RightToLeft) return "float:right;"; else return ""; } } string _Main_ul_CssClass = ""; #endregion #region Properties public string Main_ul_CssClass { get { if (string.IsNullOrEmpty(_Main_ul_CssClass)) return ""; _Main_ul_CssClass = "class=" + _Main_ul_CssClass; return _Main_ul_CssClass; } set { _Main_ul_CssClass = value.Trim(); } } public Directions Direction { get; set; } public int? AnimationDelay { get; set; } public AnimationType AnimationType { get; set; } public AnimationSpeed AnimationSpeed { get; set; } public bool DropShadow { get; set; } public bool AutoArrows { get; set; } [Category("Behavior")] [Description("The menu collection")] [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)] [PersistenceMode(PersistenceMode.InnerDefaultProperty)] public List<MenuItem> MenuItems { get { if (_MenuItems == null) _MenuItems = new List<MenuItem>(); return _MenuItems; } } public VerOrHor VerticalOrHorizontal { get; set; } #endregion #region Methods public Menu() { DropShadow = true; AutoArrows = true; } public override void RenderBeginTag(HtmlTextWriter writer) { writer.Write("<div id="" + this.ID + "" style="" + _Direction + " " + FloatStyle + "">"); } public override void RenderEndTag(HtmlTextWriter writer) { writer.Write("</div>"); } protected override void OnPreRender(EventArgs e) { base.OnPreRender(e); #region Adding Script & link Tags HtmlGenericControl jquery = new HtmlGenericControl("script"); jquery.Attributes.Add("type", "text/javascript"); jquery.Attributes.Add("src", Page.ClientScript.GetWebResourceUrl(typeof(MenuServerControl.Menu), "MenuServerControl.JavaScriptFiles.jquery_1_4_3.js")); jquery.EnableViewState = false; Page.Header.Controls.Add(jquery); HtmlGenericControl hoverIntent = new HtmlGenericControl("script"); hoverIntent.Attributes.Add("type", "text/javascript"); hoverIntent.Attributes.Add("src", Page.ClientScript.GetWebResourceUrl(typeof(Menu), "MenuServerControl.JavaScriptFiles.hoverIntent.js")); hoverIntent.EnableViewState = false; Page.Header.Controls.Add(hoverIntent); HtmlGenericControl jquery_bgiframe_min = new HtmlGenericControl("script"); jquery_bgiframe_min.Attributes.Add("type", "text/javascript"); jquery_bgiframe_min.Attributes.Add("src", Page.ClientScript.GetWebResourceUrl(typeof(Menu), "MenuServerControl.JavaScriptFiles.jquery_bgiframe_min.js")); jquery_bgiframe_min.EnableViewState = false; Page.Header.Controls.Add(jquery_bgiframe_min); HtmlGenericControl superfish = new HtmlGenericControl("script"); superfish.Attributes.Add("type", "text/javascript"); superfish.Attributes.Add("src", Page.ClientScript.GetWebResourceUrl(typeof(Menu), "MenuServerControl.JavaScriptFiles.superfish.js")); superfish.EnableViewState = false; Page.Header.Controls.Add(superfish); HtmlGenericControl supersubs = new HtmlGenericControl("script"); supersubs.Attributes.Add("type", "text/javascript"); supersubs.Attributes.Add("src", Page.ClientScript.GetWebResourceUrl(typeof(Menu), "MenuServerControl.JavaScriptFiles.supersubs.js")); supersubs.EnableViewState = false; Page.Header.Controls.Add(supersubs); if (Direction == Directions.LeftToRight) { HtmlGenericControl csslink = new HtmlGenericControl("link"); csslink.Attributes.Add("href", Page.ClientScript.GetWebResourceUrl (typeof(Menu), "MenuServerControl.CSS.superfish.css")); csslink.ID = "NavigationMenu"; csslink.Attributes.Add("type", "text/css"); csslink.Attributes.Add("rel", "stylesheet"); csslink.EnableViewState = false; Page.Header.Controls.Add(csslink); } else { HtmlGenericControl csslink = new HtmlGenericControl("link"); csslink.Attributes.Add("href", Page.ClientScript.GetWebResourceUrl (typeof(Menu), "MenuServerControl.CSS.RightToLeft superfish.css")); csslink.ID = "NavigationMenu"; csslink.Attributes.Add("type", "text/css"); csslink.Attributes.Add("rel", "stylesheet"); csslink.EnableViewState = false; Page.Header.Controls.Add(csslink); } if (this.VerticalOrHorizontal == VerOrHor.Vertical && this.Direction == Directions.RightToLeft) { HtmlGenericControl csslink01 = new HtmlGenericControl("link"); csslink01.Attributes.Add("href", Page.ClientScript.GetWebResourceUrl (typeof(Menu), "MenuServerControl.CSS.RightToLeft superfish-vertical.css")); csslink01.Attributes.Add("type", "text/css"); csslink01.Attributes.Add("rel", "stylesheet"); csslink01.EnableViewState = false; Page.Header.Controls.Add(csslink01); } else if (this.VerticalOrHorizontal == VerOrHor.Vertical) { HtmlGenericControl csslink01 = new HtmlGenericControl("link"); csslink01.Attributes.Add("href", Page.ClientScript.GetWebResourceUrl (typeof(Menu), "MenuServerControl.CSS.superfish-vertical.css")); csslink01.Attributes.Add("type", "text/css"); csslink01.Attributes.Add("rel", "stylesheet"); csslink01.EnableViewState = false; Page.Header.Controls.Add(csslink01); } #endregion } protected override void RenderContents(HtmlTextWriter output) { output.Write(CreateMenuHtmlTags()); } StringBuilder CreateMenuHtmlTags() { if (this._MenuItems == null) throw new Exception("تگ های مربوط به منو را کامل کنید"); StringBuilder Html = new StringBuilder(""); #region Add <Script> if (String.IsNullOrEmpty(Main_ul_CssClass)) Html.Append("<script>$(document).ready(function() { $("ul.sf-menu").superfish({pathLevels: 1,"); else Html.Append("<script>$(document).ready(function() { $("ul." + Main_ul_CssClass + "").superfish({ pathLevels: 1,"); Html.Append("delay:" + _AnimationDelay + ","); Html.Append(_AnimationType + ","); Html.Append(_AnimationSpeed + ","); Html.Append("dropShadows: " + DropShadow.ToString().ToLower() + ","); Html.Append(@"autoArrows: " + AutoArrows.ToString().ToLower() + "});});</script>"); #endregion if (string.IsNullOrEmpty(Main_ul_CssClass) && VerticalOrHorizontal == VerOrHor.Vertical) Html.Append("<ul class="sf-menu sf-vertical sf-js-enabled sf-shadow" id='sample-menu-1'>"); else if (String.IsNullOrEmpty(Main_ul_CssClass)) Html.Append("<ul class="sf-menu sf-js-enabled sf-shadow" id='sample-menu-1'>"); else Html.Append("<ul class="" + Main_ul_CssClass + "" id='sample-menu-1'>"); foreach (MenuItem item in _MenuItems) { if (item == null) continue; if (item.SubMenuItems != null && item.SubMenuItems.Count > 0) { Html.Append("<li" + item.li_CssClass + ">"); Html.Append("<a href="" + item.Href + "">" + item.Text.Trim() + "</a>"); ParseSubMenuItems(ref Html, item); Html.Append("</li>"); } else if (item.SubMenuItems != null) Html.Append("<li" + item.li_CssClass + "><a href="" + item.Href + "">" + item.Text.Trim() + "</a></li>"); } Html.Append("</ul>"); return Html; } void ParseSubMenuItems(ref StringBuilder Html, MenuItem menuItems) { if (menuItems == null) return; Html.Append("<ul " + menuItems.ul_CssClass + " style="display: none; visibility: hidden;">"); foreach (var item in menuItems.SubMenuItems) { if (item == null) continue; MenuItem Sub_MenuItem = item as MenuItem; WebControl webControl = item as WebControl; if (Sub_MenuItem != null) { if (Sub_MenuItem.SubMenuItems != null && Sub_MenuItem.SubMenuItems.Count > 0) { Html.Append("<li" + Sub_MenuItem.li_CssClass + ">"); Html.Append("<a href="" + Sub_MenuItem.Href + "">" + Sub_MenuItem.Text.Trim() + "</a>"); ParseSubMenuItems(ref Html, Sub_MenuItem); Html.Append("</li>"); } else if (Sub_MenuItem.SubMenuItems != null) Html.Append("<li" + Sub_MenuItem.li_CssClass + "><a href="" + Sub_MenuItem.Href + "">" + Sub_MenuItem.Text.Trim() + "</a></li>"); } else if (webControl != null) { Html.Append("<li>"); webControl.EnableViewState = true; this.Controls.Add(webControl); webControl.EnableViewState = true; StringBuilder sb = new StringBuilder(); sb.Append("<div>"); using (StringWriter sw = new StringWriter(sb)) { using (HtmlTextWriter textWriter = new HtmlTextWriter(sw)) { webControl.RenderControl(textWriter); } } sb.Append("</div>"); Html.Append(sb.ToString()); Html.Append("</li>"); } } Html.Append("</ul>"); } #endregion } } MenuItem.cs using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.ComponentModel; using System.Web.UI; using System.Web.UI.WebControls; using System.Collections; namespace MenuServerControl { [DefaultProperty("SubMenuItems")] [ParseChildren(true, "SubMenuItems")] [TypeConverter(typeof(ExpandableObjectConverter))] public class MenuItem : INamingContainer { #region Fields ArrayList _SubMenuItems; string text = ""; string href = "#"; string _ul_CssClass = ""; string _li_CssClass = ""; #endregion #region Properties [Description("متن منو آیتم")] [DefaultValue("")] [NotifyParentProperty(true)] public string Text { get { return text; } set { text = value; } } [DefaultValue("#")] [Description("<a /> href attribute")] [NotifyParentProperty(true)] public string Href { get { return href; } set { href = value; } } [DefaultValue("")] [Description("<ul /> css class")] [NotifyParentProperty(true)] public string ul_CssClass { get { if (string.IsNullOrEmpty(_ul_CssClass)) return ""; _ul_CssClass = " class="" + _ul_CssClass + """; return _ul_CssClass; } set { this._ul_CssClass = value.Trim(); } } [DefaultValue("")] [Description("<li /> css class")] [NotifyParentProperty(true)] public string li_CssClass { get { if (string.IsNullOrEmpty(_li_CssClass)) return ""; _li_CssClass = " class="" + _li_CssClass + """; return _li_CssClass; } set { this._li_CssClass = value.Trim(); } } [Category("Behavior")] [Description("The MenuItems collection")] [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)] [PersistenceMode(PersistenceMode.InnerDefaultProperty)] public ArrayList SubMenuItems { get { if (_SubMenuItems == null) _SubMenuItems = new ArrayList(); return _SubMenuItems; } } #endregion } }
i have a problem with some part of an applcation am developing, i have a button that works the first time its clicked and then does not work after that. There is a visible page post back, but the code is not executed. I want the a label on a page get a new value whenever the button is clicked.
Sub Button_Next_Click(ByVal sender As Object, ByVal e As System.EventArgs) x = Integer.Parse(Label_previous.Text) x = x + 1 Label_previous.Text = x End Sub <asp:Button ID="Button_Next" runat="server" Text="1" Width="65px" onclick="Button_Next_Click" />
I have a button that I cannot see or click in design view in VS but I can locate it in my source. The reason I cannot see it is because it is overshadowed by a panel that has a repeater in it. I am trying to create an onclick event for it. The way I normally do this is just double click on the button or click on it and click the small lightning bolt in properties and double click the Click event for the button. This time I cannot do that.
So, I tried to create an on click event by doing this:
However my button does not work... Its a very simple objective for my button, just adding a textbox value to a lstBox and I know its correct, so I know my code isnt broken. I just cannot get that button to fire correctly.
I have a placeholder and in there a button that is set as enable false and on certain conditions it become enabled.On page load I get all info in the panel. So far so good. Now If I added Onclick="btn1_click" in aspx page and got application error. I need to pass some info to next page on button click event.
Trying to get a helloworld web application up running in Visual Web Developer 2010.
Now I created a new project with Home controller and two default views (index and about).
Then in the index view I added a button and a textbox...double clicking the button creates a handler in the view, but it's never called...what am I missing?
I came across a very strange occurrence with ASP.NET onclick event in IE (other browsers doesn't seem to have this problem). When there is only one textbox field in a form, the onclick event doesn't fire when you enter text and hit Enter/Return. The event does fire when you click on the actual submit button. When there are two or more fields in the form, hitting Enter/Return works just fine.
I had an MVC 1.0 web application that was in VS 2008; I just upgraded the project to VS 2010 which automatically upgraded MVC to 2.0. I have a bunch of viewpages have codebehind files that were manually added. The project worked fine before the upgrade, but now the onclick even't don't get triggered. I.e. I have an asp:button with an onclick event that points to a method in the codebehind. When you click the button, the onclick event doesn't get triggered. In fact, when you look at the Page variable, IsPostBack is false.
This is really bizarre and I'm wondering if anyone know what happened and how to fix it. I'm thinking it has something to do with the changes in MVC 2.0; but I'm not sure. (deleting the codebehinds and moving that to the controller is not really an option since there is so many pages, moving back to vs 2008 is a last resort as I want to make use of some of the VS 2010 features like performance testing.)
I have created a user control which has a form and 2 buttons; Save and Submit. Both buttons are created at design time. Users can enter details in the form (e.g. title and description of an item) and click Save which does some server-side processing to create an 'Item' then clears the form.
The buttons:
[Code]....
[Code]....
And a placeholder to add dynamically created controls:
[Code]....
I am saving the Items in ViewState and dynamically creating a LinkButton control for each Item which allows the user to edit the item:
[Code]....
[Code]....
Now, when I test this in Visual Studio 2010, it works fine;
1. Enter Item title and description in form
2. Click Save
3. Save button triggers postback and onClick event code is run
4. ViewState list is displayed below the form
When I create a local IIS web site for testing, the postback on the Save button only works the first time I click it. Postback is false on the second click and the page reloads without running the onClick event code.
I have dynamically generated a button an its event too.Now want to access a textbox (Generated Dynamically) into the onClick event of the Button.How can i do this?
I have a web page which has both asp.net controls as well as AJAX controls.I am facing a weird issue when I introduce some AJAX controls(Modal popup) inside a tabbed panel, the button onClick event stops firing.
