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  • Force Postback from code behind? Or reload JavaScript from an Asynchronous Postback?

    - by sah302
    Hi all, I've got a Jquery UI dialog that pops up to confirm the creation of an item after filling out a form. I have the form in an update panel due to various needs of the form, and especially because I want validation being done on the form without reloading the page. JavaScript appears to not reload on an asynchronoous postback. This means when the form is a success and I change the variable 'formSubmitPass' to true, it does not get passed to the Javascript via <%= formSubmitPass %. If I add a trigger to the submit button to do a full postback, it works. However I don't want the submit button to do a full postback as I said so I can validate the form within the update panel. How can I have this so my form validates asynchronously, but my javaScript will properly reload when the form is completed successfully and the item is saved to the database? Javascript: var formSubmitPass = '<%= formSubmitPass %>'; var redirectUrl = '<%= redirectUrl %>'; function pageLoad() { $('#formPassBox').dialog({ autoOpen: false, width: 400, resizable: false, modal: true, draggable: false, buttons: { "Ok": function() { window.location.href = redirectUrl; } }, open: function(event, ui) { $(".ui-dialog-titlebar-close").hide(); var t = window.setTimeout("goToUrl()", 5000); } }); if(formSubmitPass == 'True') { $('#formPassBox').dialog({ autoOpen: true }); } So how can I force a postback from the code behind, or reload the JavaScript on an Asynchronous Postback, or do this in a way that will work such that I can continue to do Async form validation? Edit: I change formSubmitPass at the very end of the code behind: If errorCount = 0 Then formSubmitPass = True upForm.Update() Else formSubmitPass = False End If So on a full postback, the value does change.

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  • asp.net postback with jquery?

    - by mark smith
    Hi there, Can anyone help, I have a asp.net button but recently replaced it with a standard html button ... What i need to do is postback to an asp.net page and ensure a method is called the button before was an asp.net button so i had this event Protected Sub btnCancelar_Click(ByVal sender As Object, ByVal e As System.EventArgs) UtilTMP.DisposeObjects() Server.Transfer("~\Forms\test.aspx", True) End But i was using a button with javascript ALERT and recently changed to Jquery UI Model dialog but it doesn't wait for me to answer the question.. the postback happenes immediatly ... so i decided to change to a standard HTML button ... but i need to postback to the asp.net page and call a method like. If i just postback it won't call the cleanup Protected Sub Cleanup() UtilTMP.DisposeObjects() Server.Transfer("~\Forms\test.aspx", True) End

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  • How to simulate postback in nested usercontrols?

    - by jaloplo
    Hi all, I'm doing an asp.net application with one page. In this page, I have one usercontrol defined. This usercontrol has a menu (three buttons) and 3 usercontrols defined too. Depending on the clicked button one of the three usercontrols turn to visible true or false. In these three usercontrols I have a button and a message, and I want to show the message "It's NOT postback" when the button of the menu is clicked, and when the button of the usercontrol is clicked the message will be "YES, it's postback!!!". The question is that using property "IsPostBack" of the usercontrol or the page the message will never be "It's NOT postback" because of the clicked button of the menu to show the nested usercontrol. This is the structure of the page: page parent usercontrol menu nested usercontrol 1 message button nested usercontrol 2 nested usercontrol 3 I know it can be done using ViewState but, there is a way to simulate IsPostBack property or know when is the true usercontrol postback? Thanks.

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  • SharePoint People editor control - UpdatePanel postback issue

    - by rjn
    Hi I've a people editor control inside an update panel. During postback, I need to update the value of people editor control based on some selection. Though the value is getting updated, it is not being persisted on postback. I can see the value being updated when I debug. All other controls inside the update panel are working fine and their values are updated on postback. I have read blogs that we need to set the style attribute "display:block" on postback, but that's not working for me. Any suggestions highly appreciated. Thanks

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  • Why this button doesn't cause triple postback?

    - by focus
    We have developed a page with a asp.net and debugging it accidentally we have discovered on our page button with the next code on onclik attribute onclick="__doPostBack('ctl00$FormPlace$m_userTaskMarkAsUnreadButton',''); __doPostBack('ctl00$FormPlace$m_userTaskMarkAsUnreadButton','');WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("ctl00$FormPlace$m_userTaskMarkAsUnreadButton", "", true, "", "", false, false))" It seems that the button do three postbacks but when we click it only cause on postback. With this code seems that de button will cause three postbacks!! We have try it with Internet Explorer and Firefox and the button only cause on postback always. Are browsers who avoid that the button do three postback ? Or Is Asp.net server who avoid the three postback? We don't understand why the button behaves correctly if onclick attribute has three call to do Postbacks. Thanks

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  • "Invalid Postback or callback argument" on modifying the DropDownList on the client side

    - by gnomixa
    I know why it's happening and i turned the validation on the page level, but is there a way to turn it off on the control level? "Invalid Postback or callback argument . Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" %in a page. For security purposes, this feature verifies that arguments to Postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the Postback or callback data for validation."

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  • Getting control that fired postback in page_init

    - by Clint
    I have a gridview that includes dynamically created dropdownlist. When changing the dropdown values and doing a mass update on the grid (btnUpdate.click), I have to create the controls in the page init so they will be available to the viewstate. However, I have several other buttons that also cause a postback and I don't want to create the controls in the page init, but rather later in the button click events. How can I tell which control fired the postback while in page_init? __EVENTTARGET = "" and request.params("btnUpdate") is nothing

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  • Sending postback to ajax loaded user controls.

    - by Paul Knopf
    I have a set of tabs, which all of them together contain alot of data. I am making the tabs load async. I have one button above the tabs used to save changes. I need this button to send a postback to all the loaded user controls (using this). I need the user control to handle this postback so it can save changes. What do you think? Any suggestions?

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  • SignOut() without postback in ajax login

    - by Romi
    Hi, I have one asp.net Ajax Login using webservices. In this login i call the loogout() client side from hyperlink: Sys.Services.AuthenticationService.logout(null,onLogoutCompleted,null,null); return false; My Webservice make : [WebMethod] public void Logout() { FormsAuthentication.SignOut(); } logout work but my page make one big postback. Some way to make NO postback at logout? Thanks

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  • Firefox causes extra "Not Postback" ping when postback happens

    - by Arvind
    We got weird problem in my application (asp.net). The problem happens only in Firefox. The scenario is like this.. We have grid bind with results. when I change page of the grid (postback). at that time extra "Not postback" is caused in FireFox only which actually disturb my session logic and then all goes wrong. Can anyone have idea on this? Please help me out!

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  • Postback problem when using URL Rewrite and 404.aspx

    - by salle55
    I'm using URL rewrite on my site to get URLs like: http://mysite.com/users/john instead of http://mysite.com/index.aspx?user=john To achive this extensionless rewrite with IIS6 and no access to the hosting-server I use the "404-approach". When a request that the server can't find, the mapped 404-page is executed, since this is a aspx-page the rewrite can be performed (I can setup the 404-mapping using the controlpanel on the hosting-service). This is the code in Global.asax: protected void Application_BeginRequest(object sender, EventArgs e) { string url = HttpContext.Current.Request.Url.AbsolutePath; if (url.Contains("404.aspx")) { string[] urlInfo404 = Request.Url.Query.ToString().Split(';'); if (urlInfo404.Length > 1) { string requestURL = urlInfo404[1]; if (requestURL.Contains("/users/")) { HttpContext.Current.RewritePath("~/index.aspx?user=" + GetPageID(requestURL)); StoreRequestURL(requestURL); } else if (requestURL.Contains("/picture/")) { HttpContext.Current.RewritePath("~/showPicture.aspx?pictureID=" + GetPageID(requestURL)); StoreRequestURL(requestURL); } } } } private void StoreRequestURL(string url) { url = url.Replace("http://", ""); url = url.Substring(url.IndexOf("/")); HttpContext.Current.Items["VirtualUrl"] = url; } private string GetPageID(string requestURL) { int idx = requestURL.LastIndexOf("/"); string id = requestURL.Substring(idx + 1); id = id.Replace(".aspx", ""); //Only needed when testing without the 404-approach return id; } And in Page_Load on my masterpage I set the correct URL in the action-attribute on the form-tag. protected void Page_Load(object sender, EventArgs e) { string virtualURL = (string)HttpContext.Current.Items["VirtualUrl"]; if (!String.IsNullOrEmpty(virtualURL)) { form1.Action = virtualURL; } } The rewrite works fine but when I perform a postback on the page the postback isn't executed, can this be solved somehow? The problem seems to be with the 404-approach because when I try without it (and loses the extensionless-feature) the postback works. That is when I request: http://mysite.com/users/john.aspx Can this be solved or is there any other solution that fulfil my requirements (IIS6, no serveraccess/ISAPI-filter and extensionless).

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  • PHP - Best practice to retain form values across postback

    - by Adam
    Hello, Complete PHP novice here, almost all my previous work was in ASP.NET. I am now working on a PHP project, and the first rock I have stumbled upon is retaining values across postback. For the most simple yet still realistic example, i have 10 dropdowns. They are not even databound yet, as that is my next step. They are simple dropdowns. I have my entire page inclosed in a tag. the onclick() event for each dropdown, calls a javascript function that will populate the corrosponding dropdowns hidden element, with the dropdowns selected value. Then, upon page reload, if that hidden value is not empty, i set the selected option = that of my hidden. This works great for a single postback. However, when another dropdown is changed, the original 1'st dropdown loses its value, due to its corrosponding hidden value losing its value as well! This draws me to look into using querystring, or sessions, or... some other idea. Could someone point me in the right direction, as to which option is the best in my situation? I am a PHP novice, however I am being required to do some pretty intense stuff for my skill level, so I need something flexable and preferribly somewhat easy to use. Thanks! -----edit----- A little more clarification on my question :) When i say 'PostBack' I am referring to the page/form being submitted. The control is passed back to the server, and the HTML/PHP code is executed again. As for the dropdowns & hiddens, the reason I used hidden variables to retain the "selected value" or "selected index", is so that when the page is submitted, I am able to redraw the dropdown with the previous selection, instead of defaulting back to the first index. When I use the $_POST[] command, I am unable to retrieve the dropdown by name, but I am able to retrieve the hidden value by name. This is why upon dropdown-changed event, I call javascript which sets the selected value from the dropdown into its corrosponding hidden.

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  • .net user control event handler lost on postback

    - by user154008
    I have a menu usercontrol called LeftMenu that has a bulletedlist of linkitems. It's on the ascx page as such: <asp:BulletedList ID="PublisherList" DisplayMode="LinkButton" OnClick="PublisherList_Click" cssClass="Menu" runat="server"></asp:BulletedList> I databind the list in the page_load under if(!isPostBack) I'm having an issue on a page that loads the control. When the page first loads, the event handler fires. However, when the page posts back it no longer fires and in IE8, when I'm debugging, I get "Microsoft JScript runtime error: Object expected" in Visual Studio pointing at "doPostBack('LeftMenu$PublisherList','0')." In FF I don't get the error, but nothing happens. I'm **not loading the control dynamically, it's loaded on the aspx page using: <%@ Register TagPrefix="Standards" TagName="LeftMenu" Src="LeftMenu.ascx" %> <Standards:LeftMenu ID="LeftMenu" runat="server"/> Any ideas of where I'm losing the event handler? I just realized this is happening on another user control I have as well. A text box and a button and I'm using the default button to make sure pressing the enter key uses that button. .Net converts that in the html to: <div id="SearchBarInclude_SearchBar" onkeypress="javascript:return WebForm_FireDefaultButton(event, 'SearchBarInclude_QuickSearchButton')"> so as soon as i enter a key in the box I get a javascript error at the line saying "object expected." It seems like the two issues are related. Edit Again: I think I need to clarify. It's not that I'm clicking on the menu item and it can't find the selected item on postback. I have this search page with the left navigation on it and then the main content of the page is something that causes a postback. Everything is fine with this postback. Once that page has been posted back, now if I click on the bulleted list in the left navigation I get a javascript error and it fails. The page_init for the LeftMenu control is never called.

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  • JSF: initial request and postback request?

    - by Harry Pham
    Please take a look at this below line of code in JSF <h:inputText id="name" value="#{customer.name}" /> Quote from java.sun.com For an initial request of the page containing this tag, the JavaServer Faces implementation evaluates the #{customer.name} expression during the render response phase of the lifecycle. During this phase, the expression merely accesses the value of name from the customer bean, as is done in immediate evaluation. For a postback request, the JavaServer Faces implementation evaluates the expression at different phases of the lifecycle, during which the value is retrieved from the request, validated, and propagated to the customer bean. I am not sure I understand initial request vs postback request. Does the client browser make two different request to the webserver?

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  • treeview and postback

    - by Luis
    hi I have a treeview, and already the javascript code to postback the page. Because when i select the father , auto-select the children. this is my html code <script> function foo() { var o = window.event.srcElement; if (o.tagName == "INPUT" && o.type == "checkbox") { __doPostBack("",""); } } </script> <asp:TreeView ID="HierarchicalTreeView" runat="server" OnSelectedNodeChanged="HierarchicalTreeView_SelectedNodeChanged" ShowLines="True" ExpandImageToolTip="Fechar &quot;{0}&quot;" CollapseImageToolTip="Fechar &quot;{0}&quot;" ExpandDepth="1" OnTreeNodeCheckChanged="HierarchicalTreeView_TreeNodeCheckChanged" EnableClientScripts="true" onClick="foo()"> <NodeStyle CssClass="text" /> <SelectedNodeStyle CssClass="text" Font-Bold="true" /> </asp:TreeView> How can i prevent from postback all page, and only the treeview???, so dont 'refresh' the page

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  • Stop a postback in javascript

    - by jmpena
    hello, i have an ASP webform with a JQuery Thickbox, i have an image that opens the thickbox when user click. once open the thickbox it shows me a grid with several rows and a button to select one and after the user select the record it returns to the main page the recordselected and cause a __doPostBack() BUT! sometimes in IE6 it stay loading the postback and never ends i have to refresh the page and when it refresh it shows everything fine. but i dont want the postback stay loading AND it does not happend always. i have to call a __doPostBack because i need to find info related to the selected record. thanks.

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  • UpdatePanel Full Postback

    - by Korivo
    Greetings, here is the scenario. I have and .aspx page with and updatepanel like this <asp:UpdatePanel id="uPanelMain" runat="server"> <ContentTemplate> <uc:Calendar id="ucCalendar" runat="server" Visible="true" /> <uc:Scoring id="ucScoring" runat="server" Visible="false" /> </ContentTemplate> The control ucCalendar is loaded first and it contains a grid like this <asp:DataGrid CssClass="grid" ID="gridGames" runat="server" AutoGenerateColumns="False" HeaderStyle-CssClass="gridHeader" ItemStyle-CssClass="gridScoringRow" GridLines="None" ItemStyle-BackColor="#EEEEEE" AlternatingItemStyle-BackColor="#F5F5F5" OnEditCommand="doScoreGame" OnDeleteCommand="doEditGame" OnCancelCommand="printLineup" OnItemDataBound="gridDataBound"> <Columns> <asp:TemplateColumn > <ItemTemplate> <asp:CheckBox ID="chkDelete" runat="server" /> </ItemTemplate> </asp:TemplateColumn> <asp:BoundColumn DataField="idGame" Visible="false" /> <asp:BoundColumn DataField="isClose" Visible="false" /> <asp:TemplateColumn HeaderText="Status"> <ItemTemplate> <asp:Image ID="imgStatus" runat="server" ImageUrl="~/img/icoX.png" alt="icoStatus" /> </ItemTemplate> </asp:TemplateColumn> <asp:TemplateColumn> <ItemTemplate> <asp:LinkButton ID="linkScore" runat="server" CommandName="Edit" Text="Score" /> </ItemTemplate> </asp:TemplateColumn> </Columns> </asp:DataGrid> So when i click the "linkButton", the codebehind of the userControl calls a public method in the .aspx as this: From the userControl protected void doScoreGame(object sender, DataGridCommandEventArgs e) { ((GM)this.Page).showScoring(null, null); } From the .aspx page public void showScoring(object sender, EventArgs e) { removeLastLoadedControl(); ucScoring.Visible = true; } So, here comes the problem: There are two postbacks taking place when I change the visible attribute of the ucScoring control. The first postback is fine, it's handled by the updatePanel. The second postback is a full postback, and i really don't understand why it is happening. I'm really lost here, please help! Thanks Mat

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  • UpdatePanel Javascript Error on Adding Clientside Listbox items After postback

    - by DBMaster
    Hi, I have a Dynamic list control of Metabuilder.Webcontrol inside UpdatePanel,I am adding removing Items using Javascript from the list control. It works fine Inside UpdatePanel. I have another control Gridview along with checkbox's which require postback to get populated. Once It gets populated successfully inside update without postback. I checked few rows and wanted to add them into List Control using Javascript. It says "object doesn't support this property or method" function addItmList(idv,valItem) { var list =document.getElementById('ctl00_ContentPlaceHolder1_MyList'); //var generatedName = "newItem" + ( list.options.length + 1 ); list.Add(idv,valItem); } function checkitemvalues() { var gvET = document.getElementById("ctl00_ContentPlaceHolder1_grd"); var target = document.getElementById('ctl00_ContentPlaceHolder1_lstIControl'); var newOption = window.document.createElement('OPTION'); var rCount = gvET.rows.length; var rowIdx = 0; var tcount = 1; for (rowIdx; rowIdx<=rCount-1; rowIdx++) { var rowElement = gvET.rows[rowIdx]; var chkBox = rowElement.cells[0].firstChild; var cod = rowElement.cells[1].innerText; var desc = rowElement.cells[2].innerText; if (chkBox.checked == true){ addItmList(rowElement.cells[1].innerText,rowElement.cells[2].innerText); } } } Code Behind ScriptManager.RegisterClientScriptBlock( Me.Page, Me.GetType(), MyList.ClientID, "" & vbCr & vbLf & "window.mylistid='" + MyList.ClientID + "';" & vbCr & vbLf & "", True ) Remember my code works fine. It cannot maintain the state of List Control thats why It says Object reqiured. Can any one help me out. After Update Panel Why My javascript doesnt add Items into ListBox. Thanks In advance

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  • Adding a ServiceReference programmatically during async postback

    - by Oliver
    Is it possible to add a new ServiceReference instance to the ScriptManager on the Page during an asynchronous postback so that subsequently I can use the referenced web service through client side script? I'm trying to do this inside a UserControl that sits inside a Repeater, that's why adding the ScriptReference programmatically during Page_Load does not work here. EDIT 2: This is the code I call from my UserControl which does not do what I expect (adding the ServiceReference to the ScriptManager during the async postback): private void RegisterWebservice(Type webserviceType) { var scm = ScriptManager.GetCurrent(Page); if (scm == null) throw new InvalidOperationException("ScriptManager needed on the Page!"); scm.Services.Add(new ServiceReference("~/" + webserviceType.Name + ".asmx")); } My goal is for my my UserControl to be as unobtrusive to the surrounding application as possible; otherwise I would have to statically define the ServiceReference in a ScriptManagerProxy on the containing Page, which is not what I want. EDIT: I must have been tired when I wrote this post... because I meant to write ServiceReference not ScriptReference. Updated the text above accordingly. Now I have: <asp:ScriptManagerProxy runat="server" ID="scmProxy"> <Services> <asp:ServiceReference Path="~/UsefulnessWebService.asmx" /> </Services> </asp:ScriptManagerProxy> but I want to register the webservice in the CodeBehind.

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  • Problem with jquery #find on partial postback

    - by anonymous
    I have a third party component. It is a calendar control. I have a clientside event on it which fires javascript to show a popup menu. I do everything client side so I can use MVC. dd function MouseDown(oDayView, oEvent, element) { try { e = oEvent.event; var rightClick = (e.button == 2); if (rightClick) { var menu = $find("2_menuSharedCalPopUp"); menu.showAt(200, 200, e); } } catch (err) { alert("MouseDown() err: " + err.description); } } The javascript fires perfectly withe $find intially. I have another clientside method which updates the calendar via a partial postback. Once I have done this all subsequent MouseDowns( rightclicks) which use the $find statment error with 'null'. All similar problems people have out there seem to be around calling javascript after a postback - with solutions being re-registering an event using PageRequestManager or registering a clientside function on the server - et cetera. However, the event is firing, and the javascript working - it's the reference in the DOM that seems an issue. Any ideas?

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  • How to stop Telerik RadWindow from always reloading on the next PostBack

    - by Andrew
    I am invoking a RadWindow as a dialog in my web page. I am invoking from code-behind since I need to pass some parameters: radWindow1.NavigateUrl = url + "?England,Germany,France"; radWindow1.VisibleOnPageLoad = true; This works great, however it keeps reloading on each and every postback. How can I stop the RadWindow from reloading? I don't mind code-behind or JavaScript to achieve this.

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  • asp:upload postedfile lost during postback

    - by Neil
    I am using an asp:upload control to upload an image and am using the postedfile property to insert the path to the database. In my form I have a dropdown with autopostback=true where the user can select a topic to populate a checkbox list of categories. During that postback, the postedfile value is being lost and after a little research I have discovered that the posted file value is not maintained in viewstate for security reasons. Has anybody else found out how to get around this?

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