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• GridView_RowsDeleting event doesn't work

  - by iTayb

  I have a datagarid with a onrowdeleting="SellersGridView_RowsDeleting" switch. My method is: protected void SellersGridView_RowsDeleting(object sender, GridViewDeleteEventArgs e) { string seller = ((Label)SellersGridView.Rows[e.RowIndex].Cells[0].FindControl("TextBoxSeller")).Text; BookStore b = new BookStore(); b.LoadFromXML(Server.MapPath("list.xml")); string ISBN = Request.QueryString["ISBN"].ToString(); int ID = b.BooksList.FindIndex(x => x.ISBN == ISBN); Book myBook = b.BooksList[ID]; myBook.RemoveSeller(seller); Response.Redirect("editbook.aspx?ISBN=" + ISBN); } Well, it seems that when I try to delete anything - nothing happens. I tried to change the first line to Response.Redirect("foo") just to check if the event itself is fired, and it turns out that it doesn't. I can't get The reason. Here is my gridview control: http://pastebin.com/CKDAMECT Thank you very much!

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• Adobe AIR: touch screen doesn't trigger mouse down event correctly

  - by Saariko

  i have designed a gaming kiosk app in as3 i am using it on a Sony vaio l pc (like hp's touchsmarts) in windows 7 the app doesn't need any multi-touch gestures (only single touch clicks and drags) so i am using mouse events everything is fine (including mouse click and move events) except that a single touch to the screen (with no move) doesn't fire a mouse down. it is fired only after a small move of the finger outside the app, on my desktop, i see that the small windows 7 cursor jumps immediately to where a finger is placed, meaning this issue isn't a hardware or a windows problem but rather how internally the flash app receives "translated" touch-to-mouse events from the os. for example, in a windows Solitaire game, a simple touch to the screen immediately highlights the touched card. in my app, a button will change to the down state only if i touch it and also move my finger slightly (click events - down and up - are triggered fine) shouldn't the MOUSE_DOWN event trigger exactly like how a TOUCH_BEGIN would in the new touchevent class? any ideas?

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• I've Heard Global Variables Are Bad, What Alternative Solution Should I Use?

  - by Jay

  I've read all over the place that global variables are bad and alternatives should be used. In Javascript specifically, what solution should I choose. I'm thinking of a function, that when fed two arguments (function globalVariables(Variable,Value)) looks if Variable exists in a local array and if it does set it's value to Value, else, Variable and Value are appended. If the function is called without arguments (function globalVariables()) it returns the array. Perhaps if the function is fired with just one argument (function globalVariables(Variable)) it returns the value of Variable in the array. What do you think? I'd like to hear your alternative solutions and arguments for using global variables.

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• Add a delay to OnContactDown events for Surface controls

  - by RTigger

  We're using the Controls.PreviewContactDown, PreviewContactUp, and PreviewContactChanged events to capture tagged items being placed, removed, and moved on the Surface, which works great in the Simulator application that comes with the surface. On an actual Surface if you moved a tagged item too quickly the cameras actually lose focus of the tag, assume it was removed, and then re-capture it when it stops moving. That provides a pretty poor experience for our clients. What I'm proposing is a way to override or create a new event that would respond to tagged item events, but not fire the event handler until after a delay... i.e. if "ContactUp" is fired, wait 100ms and THEN execute the event handler. Ideally we'd just be able to use an alternate attached property to define these event handlers, i.e. <Panel local:TagDown="TagDownEventHandler" /> And if we could get it to use ICommand objects instead of event handlers that'd be even better.

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• RowsDeleting event doesn't fire

  - by iTayb

  I have a gridview with a onrowdeleting="SellersGridView_RowsDeleting" switch. My method is: protected void SellersGridView_RowsDeleting(object sender, GridViewDeleteEventArgs e) { string seller = ((Label)SellersGridView.Rows[e.RowIndex].Cells[0].FindControl("TextBoxSeller")).Text; BookStore b = new BookStore(); b.LoadFromXML(Server.MapPath("list.xml")); string ISBN = Request.QueryString["ISBN"].ToString(); int ID = b.BooksList.FindIndex(x => x.ISBN == ISBN); Book myBook = b.BooksList[ID]; myBook.RemoveSeller(seller); Response.Redirect("editbook.aspx?ISBN=" + ISBN); } Well, it seems that when I try to delete anything - nothing happens. I tried to change the first line to Response.Redirect("foo") just to check if the event itself is fired, and it turns out that it doesn't. I can't get The reason. Here is my gridview control: http://pastebin.com/CKDAMECT Here is my codebehind code: http://pastebin.com/ShBtwGEu Thank you very much!

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• jQuery Star Rating plugin - select in callback causes infinite loop

  - by Ian

  Using the jQuery Star Rating plugin everything works well until I select a star rating from the rating's callback handler. Simple example: $('.rating').rating({ ... callback: function(value){ $.ajax({ type: "POST", url: ... data: {rating: value}, success: function(data){ $('.rating').rating('select', 1); } }); } }); I'm guessing this infinite loop occurs because the callback is fired after a manual 'select' as well. Once a user submits their rating I'd like to 'select' the average rating across all users (this value is in data returned to the success handler). How can I do this without triggering an infinite loop?

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• How to get access to a window that is loaded into a panel

  - by Sandor Drieënhuizen

  I'm loading an external script (that creates a new window component) into a panel, which works fine. Now, I want to access the created window from a callback function to register a closed event handler. I've tried the following: panel.load({ scripts: true, url: '/createWindow', callback: function(el, success, response, options) { panel.findByType("window")[0].on("close", function { alert("Closed"); }); } }); However, the panel seems to be empty all the time, the findByType method keeps returning an empty collection. I've tried adding events handlers for events like added to the panel but none of them got fired. So the question is: how do I access the window in the panel to register my close event handler on it?

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• MERGE -v- UPSERT

  - by Kevin Ross

  Hi, I have an application I’m writing in access with a SQL server backend. One of the most heavily used parts is where the users selects an answer to a question, a stored procedure is then fired which sees if an answer has already been given, if it has an UPDATE is executed, if not an INSERT is executed. This works just fine but now we have upgraded to SQL server 2008 express I was wondering if it would be better/quicker/more efficient to rewrite this SP to use the new MERGE command. Does anyone have any idea if this is faster than doing a SELECT followed by either an INSERT or UPDATE?

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• ext gwt textbox is empty?

  - by user153506

  i have a textbox received from designer.but i wrote action in GWT. the problem is textbox is empty but when textbox is filled by value by pressing button then alert box will be displayed informed that value has been changed. but not worked.help me. TextBox zip1 = null; function onModuleLoad() { zip1 = TextBox.wrap(DOM.getElementById("zip1")); zip1.addChangeHandler(zip1ChangeAction()); } private ChangeHandler zip1ChangeAction() { return new ChangeHandler() { public void onChange(ChangeEvent event) { Window.alert("change fired"); } }; }

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• MouseLeftButtonUpEvent & Bubbling in Canvas

  - by Maxim

  Hi guys, I think I'm going crazy... I have Canvas with event handlers for MouseMove & MouseLeftButtonUp. However MouseLeftButtonUp is not being fired when it happens with cursor over TextBlock that is inside canvas. (it fires just fine when I release mouse button in empty space of the canvas) I tried attaching handler via AddHandler and using regular += syntax, nothing seems to work. I tried using Canvas.CaptureMouse() but it doesnt seem to work either (CaptureMouse returns true btw). MouseLeftButtonUp just doesnt want to propagate to it's parent when it happens over TextBlock (or any other element with IsHitTestVisible = true) inside Canvas. Please help.

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• windows mobile 6.5 Gestures and DirectDraw

  - by ArjanW

  I'm trying to build a UI using directdraw in c#. For this im using a DirectDrawWrapper as sugested here. My initial tests setting up the screen work perfectly. But now i'd like to incorporate gesture recognition into the UI. So i instantiate a GestureRecognizer and tie it to the _form which also gets passed to the DirectDrawGraphics constructor, form = new Form(); _form.show(); _graphics = new DirectDrawGraphics(_form, CooperativeFlags.Fullscreen, BackbufferMode.Any); gestureRecognizer = new GestureRecognizer(); gestureRecognizer.TargetControl = _form; Pasting the whole DirectDrawWrapper code might be a bit to much, so let me try to formulate a question. I guess directdraw talks directly to the video memory, as it should. But then my form wont receive any messages, thus any eventhandlers i'v tied op to the GestureRecognizer wont be fired. How can i still receive any messages from the touchscreen?

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• Firing trigger for bulk insert

  - by Deepa

  ALTER TRIGGER [dbo].[TR_O_SALESMAN_INS] ON [dbo].[O_SALESMAN] AFTER INSERT AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; -- Insert statements for trigger here DECLARE @SLSMAN_CD NVARCHAR(20) DECLARE @SLSMAN_NAME NVARCHAR(20) SELECT @SLSMAN_CD = SLSMAN_CD,@SLSMAN_NAME=SLSMAN_NAME FROM INSERTED IF NOT EXISTS(SELECT * FROM O_SALESMAN_USER WHERE SLSMAN_CD = @SLSMAN_CD) BEGIN INSERT INTO O_SALESMAN_USER(SLSMAN_CD, PASSWORD, USER_CD) VALUES(@SLSMAN_CD, @SLSMAN_CD,@SLSMAN_NAME ) END END This is the trigger written for a table(O_SALESMAN) to fetch few columns from it and insert it into one another table(O_SALESMAN_USER). Presently bulk data is getting inserted into O_SALESMAN table through a stored procedure, where as the trigger is getting fired only once and O_SALESMAN_USER is having only one record inserted each time whenever the stored procedure is being executed,i want trigger to run after each and every record that gets inserted into O_SALESMAN such that both tables should have same count which is not happening..so please let me know what can be modified in this Trigger to achieve the same....

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• Expanding all items of a NSOutlineView that loads data from a data source

  - by matei

  First of all I'm new to cocoa development so I suppose I'm probably trying to do this the wrong way, but here goes: I have a NSOutlineView which loads the data from a NSOutlineViewDataSource imnplementation. I want all the items to be expanded after they are loaded, but i can't seem to find an event fired when the data has finished loading, so I can send a [outlineView expandItem:nil expandChildren: YES] to it. I looked into the NSOutlineViewDelegate protocol but I was unable to find a sutable place for this call. What would be the best approach for this problem ?

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• Where can I get resources for developing for Mac OS Classic?

  - by Benjamin Pollack

  I recently got bored and fired up my old Mac OS Classic emulator, and then got nostalgic for writing old-school applications for the system. So, my question: Where can I get dev tools that can still target Classic? (Ideally free, since this is just for fun, but if grabbing a used version of CodeWarrior on eBay is the best way to go, so be it.) Where can I get at least reference materials so I don't have to guess-and-check my way around Carbon/the System Toolbox? Are there any forums still running that would be open to answering old-school Mac questions for when I get stuck? This is purely for fun, so don't worry about how impractical this is. I know.

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• Working with DataBinding and Page_Load in ASP.NET MVP

  - by Joel

  I'm using WebForms MVP to create some simple reporting applications. Most of these applications consist of a few search criteria inputs and a ComponentArt datagrid that I'm populating with data from the database. Most of the markup is in a UserControl, which is in a content page with a master page. My problem is that the control's Page_Load event is firing before the control events that caused the postback in the first place. Basically, the user clicks the search button, and Page_Load is fired BEFORE Search_Click. This is messing with the databinding scheme I've been using. So that's the question: Why is my Page_Load event firing before the event handler, and what can I do about it? I don't THINK this problem is related to WebForms MVP or ComponentArt, but obviously I could be wrong. Thanks.

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• Make a c# / wpf event fire only once?

  - by Donnie

  I have a case where I want a given event to execute once, and only once. I'm trying to do it this way, but I'm having prolems (else I wouldn't be asking). Note that the following code is inside the function that decides that the event needs to be fired. EventHandler h = delegate(Object sender, EventArgs e) { FiringControl.TheEvent -= h; // <-- Error, use of unassigned local variable "h" // Do stuff } FiringControl.TheEvent += h; In general this should work because of the way scope is preserved for delegates until after they're done running, but, since h is in the process of being built when I try to use it it is still considered to be "uninitialized", apparently.

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• Is there a way to delay an event handler (say for 1 sec) in Windows Forms

  - by Essam

  I need to be able to delay the event handlers for some controls (like a button) to be fired for example after 1 sec of the actual event (click event for example) .. is this possible by the .net framework ? I use a timer and call my code from the timer's tick event as below but I am not sure if this is the best approach ! void onButtonClick( ..) { timer1.Enabled = true; } void onTimerTick( ..) { timer.Enabled = false; CallMyCodeNow(); }

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• ASP.NET Lifecycle and long process

  - by user204588

  Hello, I know we need a better solution but we need to get this done this way for right now. We have a long import process that's fired when you click start import button on a aspx web page. It takes a long time..sometimes several hours. I changed the timeout and that's fine but I keep getting a connection server reset error after about an hour. I'm thinking it's the asp.net lifecycle and I'd like to know if there are settings in IIS I can change to make this lifecycle last longer.

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• DataGrid giving error and getting invisible whenever some elements visibility is changed

  - by Tarun

  I have a datagrid in which i have textblocks as one column.Then in the next column i have progress bar over which there is a textblock.On loading row of datagrid,i add these three into lists of textblock and progressbar.I start the first progress bar and after 15-20 minutes next progress bar is started.The next progress bar is getting started fine and after 20 minutes it is getting invisible.The problem is that if i try to make textblock invisible,then the whole Datagrid gets invisible and stops working.After all the tasks in the Datagrid are complete i need to make DataGrid invisible and also when i try to do so,the grid becomes invisible and no other event gets fired.... e.g List txtlist=new List(); i=1; txtlist[i].Visibility=Visibility.Collapsed;

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• how to hook up default beforeunload event on an aspx page ?

  - by Nikhil Vaghela

  I have a custom web part placed on one of the application page in SharePoint. This page it seems already have a function which gets executed on windows beforeunload javascript event. My problem is that i too need to execute some client side code (to prompt user for any unsaved changes in my web part) on windows beforeunload event. How can i achieve this ? I mean let the default event be fired as well as call my function also ? Appreciate any help. Nikhil.

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• Receive data in same order as that of NSOperationQueue

  - by Nishit

  Hi, I have an NSOperationQueue, in which I keep on adding NSOperation objects that hit server and brings data. Is there a way to store the received data in the order in which they were fired? For example, suppose the A, B and C objects are added in NSOperationQueue in the order ABC. Now each of the three A, B and C will bring data in their corresponding threads. I want to store the results in the same order in an array so that the contents of array becomes "Result A", "Result B" and "Result C". Please provide a solution or a direction towards the right answer for this problems. Thanks Guys Basically, I want to design an autosuggest component which brings data from server (same as in google app), and I thought NSOperationQueue to be the best method to implement this. Currently I set the maxConcurrentOperationCount to 1, but I want to set it to more than 1, as data comes from the server very slowly. Please point out the right dolution or direction towards this question. Thanks

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• AppDomain.CurrentDomain.DomainUnload not be raised in Console app

  - by Guy

  I have an assembly that when accessed spins up a single thread to process items placed on a queue. In that assembly I attach a handler to the DomainUnload event: AppDomain.CurrentDomain.DomainUnload += new EventHandler(CurrentDomain_DomainUnload); That handler joins the thread to the main thread so that all items on the queue can complete processing before the application terminates. The problem that I am experiencing is that the DomainUnload event is not getting fired when the console application terminates. Any ideas why this would be? Using .NET 3.5 and C#

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• jQuery Address changed event

  - by Dustin

  I'm trying my hand at jQuery Address http://www.asual.com/jquery/address/ On a click event I set $.address.value(mypath); This fires off the $.address.change() event. When I click a link I want the behavior to be slightly different than when this event is fired by clicking the back/forward button or with a bookmark or link. Is there a way to distinguish between the two events. I've looked at the event object passed to $.address.change() and they seem to be identical in both situations.

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• numeric updown control c#

  - by Raghav

  I am using numeric updowncontrol. For min and max values changed listening for these events this.numDownMinLimit.ValueChanged += new System.EventHandler(this.numDownMinLimit_ValueChanged); this.numDownMaxLimit.ValueChanged += new System.EventHandler(this.numDownMaxLimit_ValueChanged); step size set is 0.1 The eventhandler takes some time to complete. If you keep the mouse pressed for a period of time and then release it, the eventhandler still executes with the previous values which were fired. How do we prevent this scenario from occurring? I would like to discard the remaining events which are still in the queue, waiting to be handled, when the user releases the mouse button.

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• Event handler of Dropdownlist inside Gridview

  - by hotcoder

  I've added Dropdownlist in Gridview at RowDataBound event. The code is: if (e.Row.RowType == DataControlRowType.DataRow) { DropDownList ddlSeason = new DropDownList(); ddlSeason.DataSourceID = "odsRoomSeason"; ddlSeason.DataTextField = "SeasonTittle"; ddlSeason.DataValueField = "SeasonID"; ddlSeason.AutoPostBack = true; ddlSeason.SelectedIndexChanged += new EventHandler(ddlSeason_SelectedIndexChanged); TableCell tcSeason= new TableCell(); tcSeason.Controls.Add(ddlSeason); e.Row.Cells.AddAt(e.Row.Cells.Count, tcSeason); } The event handler I've added is: protected void ddlSeason_SelectedIndexChanged(object sender, EventArgs e) { // } But the problem is that the event handler function doesn't catch the event. Please tell me how to write the correct event handler, also I need to get the row from which the Dropdownlist's event has fired.

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