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  • IE not triggering keyboard event on a form with ONE FIELD

    - by raj
    I'm seeing my Friend's code here... <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <HEAD> <TITLE> Check action </TITLE> <script> function detectEvent(){ if(window.event.keyCode==13) { alert("you hit return!"); } } </script> </HEAD> <BODY> <form name="name1" onkeyup="detectEvent()" action="page2.html"> <p> Field1 <input type="text" id="text1"/> </p> </form> </BODY> </HTML> and when he tried entering a value in the textbox and pressed enter, it did not call the detectEvent(). I said, it'll always call onSubmit on enter button..... and he surprised me, <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <HEAD> <TITLE> Check action </TITLE> <script> function detectEvent(){ if(window.event.keyCode==13) { alert("you hit return!"); } } </script> </HEAD> <BODY> <form name="name1" onkeyup="detectEvent()" action="page2.html"> <p> Field1 <input type="text" id="text1"/> </p> <p> Field1 <input type="text" id="text2"/> </p> </form> </BODY> </HTML> Now press enter, The function gets called..... Why so!? Why onKeyUp not called on forms with just one field.!!! am i missing something?

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  • Interrupting Prototype handler, alert() vs event.stop()

    - by lxs
    Here's the test page I'm using. This version works fine, forwarding to #success: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html><head> <script type="text/javascript" src="prototype.js"></script> </head><body> <form id='form' method='POST' action='#fail'> <button id='button'>Oh my giddy aunt!</button> <script type="text/javascript"> var fn = function() { $('form').action = "#success"; $('form').submit(); } $('button').observe('mousedown', fn); </script> </form> </body></html> If I empty the handler: var fn = function() { } The form is submitted, but of course we are sent to #fail this time. With an alert in the handler: var fn = function() { alert("omg!"); } The form is not submitted. This is awfully curious. With event.stop(), which is supposed to prevent the browser taking the default action: var fn = function(event) { event.stop(); } We are sent to #fail. So alert() is more effective at preventing a submission than event.stop(). What gives? I'm using Firefox 3.6.3 and Prototype 1.6.0.3. This behaviour also appears in Prototype 1.6.1.

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  • Are delegates copied during assignment to an event?

    - by Sir Psycho
    Hi, The following code seems to execute the FileRetrieved event more than once. I thought delegates were a reference type. I was expecting this to execute once. I'm going to take a guess and say that the reference is being passed by value, therefore copied but I don't like guesswork :-) public delegate void DirListEvent<T>(T dirItem); void Main() { DirListEvent<string> printFilename = s => { Console.WriteLine (s); }; var obj = new DirectoryLister(); obj.FileRetrieved += printFilename; obj.FileRetrieved += printFilename; obj.GetDirListing(); } public class DirectoryLister { public event DirListEvent<string> FileRetrieved; public DirectoryLister() { FileRetrieved += delegate {}; } public void GetDirListing() { foreach (var file in Directory.GetFiles(@"C:\")) { FileRetrieved(file); } } }

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  • AJAX Issue, Works in all browsers except IE

    - by Nik
    Alright, this code works in Chrome and FF, but not IE (which is to be expected). Does anyone see anything wrong with this code that would render it useless in IE? var waittime=400; chatmsg = document.getElementById("chatmsg"); room = document.getElementById("roomid").value; sessid = document.getElementById("sessid").value; chatmsg.focus() document.getElementById("chatwindow").innerHTML = "loading..."; document.getElementById("userwindow").innerHTML = "Loading User List..."; var xmlhttp = false; var xmlhttp2 = false; var xmlhttp3 = false; function ajax_read() { if(window.XMLHttpRequest){ xmlhttp=new XMLHttpRequest(); if(xmlhttp.overrideMimeType){ xmlhttp.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp.onreadystatechange = function() { if (xmlhttp.readyState==4) { document.getElementById("chatwindow").innerHTML = xmlhttp.responseText; setTimeout("ajax_read()", waittime); } } xmlhttp.open('GET','methods.php?method=r&room=' + room +'',true); xmlhttp.send(null); } function user_read() { if(window.XMLHttpRequest){ xmlhttp3=new XMLHttpRequest(); if(xmlhttp3.overrideMimeType){ xmlhttp3.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp3=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp3=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp3) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp3.onreadystatechange = function() { if (xmlhttp3.readyState==4) { document.getElementById("userwindow").innerHTML = xmlhttp3.responseText; setTimeout("user_read()", 10000); } } xmlhttp3.open('GET','methods.php?method=u&room=' + room +'',true); xmlhttp3.send(null); } function ajax_write(url){ if(window.XMLHttpRequest){ xmlhttp2=new XMLHttpRequest(); if(xmlhttp2.overrideMimeType){ xmlhttp2.overrideMimeType('text/xml'); } } else if(window.ActiveXObject){ try{ xmlhttp2=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try{ xmlhttp2=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e){ } } } if(!xmlhttp2) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } xmlhttp2.open('GET',url,true); xmlhttp2.send(null); } function submit_msg(){ nick = document.getElementById("chatnick").value; msg = document.getElementById("chatmsg").value; document.getElementById("chatmsg").value = ""; ajax_write("methods.php?method=w&m=" + msg + "&n=" + nick + "&room=" + room + "&sessid=" + sessid + ""); } function keyup(arg1) { if (arg1 == 13) submit_msg(); } var intUpdate = setTimeout("ajax_read()", waittime); var intUpdate = setTimeout("user_read()", 0);

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  • C# How can I trigger an event at a specific time of day?

    - by Andrei
    Hello everybody. I'm working on a program that will need to delete a folder (and then re-instantiate it) at a certain hour of the day, and this hour will be given by the user. The hour will most likely be during the night, because that's when nobody is accessing the folder (it's outside working hours). Is there a way to trigger that event at that certain hour? I know about timers, but is there an easier way to do this without a timer that ticks and checks to see what time it is? Thanks.

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  • How can I return a link to an active state after mouseout?

    - by Craig
    var menuEnter = { 'color': hoverColor}; var menuLeave = { 'color': 'C0C0C0'}; new ('div#menu a.level1 span.bg', menuEnter, menuLeave, { transition: Fx.Transitions.linear, duration: 200 }, { transition: Fx.Transitions.sineIn, duration: 500 }); I would like the active menu color to not be affected by the mouseleave var. Thank you.

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  • How do I create a random method name

    - by Russ Bradberry
    I plan on using JSONP to call an external webservice to get around the fact that I dont want to create a global function that could potentially conflict with the calling page. I thought that creating a random function name and passing it up would work. Something like this: <script src="www.foo.com/b?cb=d357534"> where cb is the callback function name, the server would return d357534({my json data}); what i want to know is how to create the random function name, im sure i could use eval but is this the best way to go about it? essentially, what i am trying to do is this: var d + Math.floor(Math.random()*1000001) = function(){...

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  • how to update div tag in javascript with data from model for onsubmit form asp.net mvc

    - by michael
    In my page i have a form tag which submits to server ,gets data and redirects to same page. problem is the the div tag which has the data from server is not getting updated. how to do that in javascript <% using (Html.BeginForm("Addfile", "uploadfile", FormMethod.Post, new { id = "uploadform", enctype = "multipart/form-data" })) { %> <input type="file" id="addedFile" name="addedFile" /><br /> <input type="submit" id="addfile" value="Addfile" /> <div id="MyGrid"> //data from the model(server side) filelist is not updating</div> what will be the form onsubmit javascript function to update the div tag with the data from the model. and my uploadfile controller get post methods are as [AcceptVerbs(HttpVerbs.Get)] public ActionResult Upload() { return View(); } [AcceptVerbs(HttpVerbs.Post)] public ActionResult AddFile(HttpPostedFileBase addedFile) { static List<string> fileList = new List<string>(); string filename = Path.GetFileName(addedFile.FileName); file.SaveAs(@"D:\Upload\" + filename); fileList.Add(filename); return("Upload",fileList); } thanks, michaela

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  • Javascript click function not working

    - by Nabe
    I need to null the value in text box on click, currently I have written a code as such <div class="keyword_non"> <h1>Keywords : <a class="someClass question_off" title="Keywords "></a></h1> <h2><input type="text" name="kw1" value="one" /></h2> <h2><input type="text" name="kw2" value="two" /></h2> <h2><input type="text" name="kw3" value="three" /></h2> <h2><input type="text" name="kw4" value="four" /></h2> </div> <script type="text/javascript" src="/functions/javascript/custom/non_profit_edit.js"></script> <script type="text/javascript" src="/functions/javascript/jquery-1.7.1.min.js"></script> <script type="text/javascript" src="/functions/javascript/custom/jquery-ui-1.8.7.custom.min.js"></script> Inside non_profit_edit.js i have written as such $(document).ready(function(){ $(".kw1").click(function() { $(".kw1").val(" "); }); $(".kw2").click(function() { $(".kw2").val(" "); }); $(".kw3").click(function() { $(".kw3").val(" "); }); $(".kw4").click(function() { $(".kw4").val(" "); }); }); But write now its not working properly... Is this any browser issues or error in code..

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  • Changing <img src="XXX" />, js event when new image has finished loading?

    - by carillonator
    I have a photo gallery web page where a single <img src="XXX" /> element's src is changed (on a click) with javascript to show the next image—a poor man's ajax I guess. Works great on faster connections when the new image appears almost immediately. Even if it takes a few seconds to load, every browser I've tested it on keeps the old image in place until the new one is completely loaded. It's a little confusing waiting those few seconds on a slow connection, though, and I'm wondering if there's some javascript event that fires when the new image is done loading, allowing me to put a little working... animated gif or something up in the meantime. I know I could use AJAX for real (I'm using jQuery already), but this is such a nice and simple solution. Besides this lag, is there any other reason I should stay away from this approach to changing images? thanks.

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  • how to attach window.close to cntrl+w keypress event in a xul window?

    - by Erik Vold
    I have a XUL window, and I want the cntrl+w hotkey to close the window, but when I attach: window.addEventListener("keypress", function(ev) { GM_log("onkeypress handler: \n" + "keyCode property: " + ev.keyCode + "\n" + "which property: " + ev.which + "\n" + "charCode property: " + ev.charCode + "\n" + "Character Key Pressed: " + String.fromCharCode(ev.charCode) + "\n"); }, true); to the page, it treats pressing 'w' and 'cntrl+w' the same, charCode 119.. how can I determine that cntrl+w was pressed so that I may window.close() ?

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  • Table data display in HTML

    - by Hulk
    In the following table how to adjust the height and width automatically for the table. i.e, if the data is more it should display all the data else present data ina fashionable manner <table="mytable"> <tr><td>more data.............................................................................</td> <td>a</td> </tr> In the nothing should be wrapped wither in case of large chuks of data or small chunks of data. Thanks....

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  • backbone model validation error

    - by koko
    I got a validation based on backbone fundamentals by addyosmani, but when i try it on my view i can't get the error that the model generated.TIA model.js validate: function(attrs) { var errors = this.errors = {}; if (!attrs.box) errors.box= 'box value is required'; //console.log(errors.box); if (!_.isEmpty(errors)) return errors; } view.js validate: function(model) { console.log("error text--" + model.errors[this.input] || ''); },

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  • Closing InfoWindow with Google Maps API V3

    - by Oscar Godson
    I've seen the other posts, but they dont have the markers being looped through dynamically like mine. How do I create an event that will close the infowindow when another marker is clicked on using the following code? $(function(){ var latlng = new google.maps.LatLng(45.522015,-122.683811); var settings = { zoom: 10, center: latlng, disableDefaultUI:false, mapTypeId: google.maps.MapTypeId.SATELLITE }; var map = new google.maps.Map(document.getElementById("map_canvas"), settings); $.getJSON('api',function(json){ for (var property in json) { if (json.hasOwnProperty(property)) { var json_data = json[property]; var the_marker = new google.maps.Marker({ title:json_data.item.headline, map:map, clickable:true, position:new google.maps.LatLng( parseFloat(json_data.item.geoarray[0].latitude), parseFloat(json_data.item.geoarray[0].longitude) ) }); function buildHandler(map, marker, content) { return function() { var infowindow = new google.maps.InfoWindow({ content: '<div class="marker"><h1>'+content.headline+'</h1><p>'+content.full_content+'</p></div>' }); infowindow.open(map, marker); }; } new google.maps.event.addListener(the_marker, 'click',buildHandler(map, the_marker, {'headline':json_data.item.headline,'full_content':json_data.item.full_content})); } } }); });

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  • Old fashioned html onclick return false doesnt in IE work when jquery script included

    - by user292662
    Ok, so im quite new to jquery but found this bizzar problem just now, If we ignore jquery for a second and consider this scenario, if i have two links like below both with an href and both with and onclick event. The first link will not follow the href because the onclick returns false, and the second link will because the onclick returns true. <a href="/page.html" onclick="return false;">Dont follow</a> <a href="/page.html" onclick="return false;">Follow</a> This works just hunky dory in every browser as it should, the thing is, as soon as i include the jQuery script on the page this stops working in all versions of IE which then always follows the href whether the onclick returns false or not. (it continues to work fine in other browsers) Now if i add an event using jquery and call .preventDefault() on the event object instead of doing it the old fashioned way this behaves correctly, and you may say, well just do that then? But i have a site with thousands of lines of code and i am adding jquery support, i dont want to run the risk that i might miss an already defined html onclick="" and break the website. I cant see why jQuery should prevent perfectly normal javascript concepts from working, so is this a jQuery bug or am I missing something?

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  • How should I handle "real time" events in an online strategy game?

    - by Hojat Taheri
    Some online strategy games have real time events. For example when you send troops to attack somewhere, the attack happens at the right time in the future. Checking the database again and again to get the list of attacks happening each second would cause heavy load. Is there any technique to achieve this goal? Another example: You want to attack a village 3 hours away, you send troops and the attack occurs 3 hours later. Should there be an script to check the database at each second to run the query at the specified time?

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  • IPhone Objectvie C

    - by Sea
    I am trying to determine if a UILabel was touched and if so do something. Give .. . . . UILabel * site = [[UILabel alloc] initWithFrame:CGRectMake(0, 185, 320, 30)]; site.text = [retriever.plistDict valueForKey:@"url"]; site.textAlignment =UITextAlignmentCenter; site.backgroundColor = [UIColor clearColor]; site.textColor = [UIColor whiteColor]; site.userInteractionEnabled = YES; [theBgView addSubview:site]; [site release]; . . . Then I write the callback. - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{ retriever = [PListRetriever sharedInstance]; CGPoint pt = [[touches anyObject] locationInView: self]; NSURL *target = [[NSURL alloc] initWithString:[retriever.plistDict valueForKey:@"url"]]; [[UIApplication sharedApplication] openURL:target]; } The problem is right now, no matter where I touch in the View the Url is being opened. How do I determine if only just my label was touched?

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  • How to use jquery ajax to set the content of a div, then call JS from that div

    - by devzero
    I'm using JQuery to load the content of an mvc usercontroll: function menuShowModal(a) { $.ajax( { url: a.href, success: function (result) { $('#modalDialog').dialog('close'); var $dialog = $('<div id=\'modalDialog\'></div>') .html(result) .dialog({ autoOpen: true, title: 'Basic Dialog', modal: true }); }, cache: false, type: 'get' }); return false; } The returned HTML looks like this: <input type="text" id="navnet" value="test" /> <script type="text/javascript"> $(document).ready( function () { alert($("#navnet").val()); } ) </script> The problem is that the alert returns "undefined" and not "test" as it should, in other words the JS is executed before the html is inserted, how do I work around this?

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  • c# Counter requires 2 button clicks to update

    - by marko.ivanovski.nz
    Hi, I have a problem that has been bugging me all day. In my code I have the following: private int rowCount { get { return (int)ViewState["rowCount"]; } set { ViewState["rowCount"] = value; } } and a button event protected void addRow_Click(object sender, EventArgs e) { rowCount = rowCount + 1; } Then on Page_Load I read that value and create controls accordingly. I understand the button event fires AFTER the Page_Load fires so the value isn't updated until the next postback. Real nightmare. Here's the entire code: protected void Page_Load(object sender, EventArgs e) { string xmlValue = ""; //To read a value from a database if (xmlValue.Length > 0) { if (!Page.IsPostBack) { DataSet ds = XMLToDataSet(xmlValue); Table dimensionsTable = DataSetToTable(ds); tablePanel.Controls.Add(dimensionsTable); DataTable dt = ds.Tables["Dimensions"]; rowCount = dt.Rows.Count; colCount = dt.Columns.Count; } else { tablePanel.Controls.Add(DataSetToTable(DefaultDataSet(rowCount, colCount))); } } else { if (!Page.IsPostBack) { rowCount = 2; colCount = 4; } tablePanel.Controls.Add(DataSetToTable(DefaultDataSet(rowCount, colCount))); } } protected void submit_Click(object sender, EventArgs e) { resultsLabel.Text = Server.HtmlEncode(DataSetToStringXML(TableToDataSet((Table)tablePanel.Controls[0]))); } protected void addColumn_Click(object sender, EventArgs e) { colCount = colCount + 1; } protected void addRow_Click(object sender, EventArgs e) { rowCount = rowCount + 1; } public DataSet TableToDataSet(Table table) { DataSet ds = new DataSet(); DataTable dt = new DataTable("Dimensions"); ds.Tables.Add(dt); //Add headers for (int i = 0; i < table.Rows[0].Cells.Count; i++) { DataColumn col = new DataColumn(); TextBox headerTxtBox = (TextBox)table.Rows[0].Cells[i].Controls[0]; col.ColumnName = headerTxtBox.Text; col.Caption = headerTxtBox.Text; dt.Columns.Add(col); } for (int i = 0; i < table.Rows.Count; i++) { DataRow valueRow = dt.NewRow(); for (int x = 0; x < table.Rows[i].Cells.Count; x++) { TextBox valueTextBox = (TextBox)table.Rows[i].Cells[x].Controls[0]; valueRow[x] = valueTextBox.Text; } dt.Rows.Add(valueRow); } return ds; } public Table DataSetToTable(DataSet ds) { DataTable dt = ds.Tables["Dimensions"]; Table newTable = new Table(); //Add headers TableRow headerRow = new TableRow(); for (int i = 0; i < dt.Columns.Count; i++) { TableCell headerCell = new TableCell(); TextBox headerTxtBox = new TextBox(); headerTxtBox.ID = "HeadersTxtBox" + i.ToString(); headerTxtBox.Font.Bold = true; headerTxtBox.Text = dt.Columns[i].ColumnName; headerCell.Controls.Add(headerTxtBox); headerRow.Cells.Add(headerCell); } newTable.Rows.Add(headerRow); //Add value rows for (int i = 0; i < dt.Rows.Count; i++) { TableRow valueRow = new TableRow(); for (int x = 0; x < dt.Columns.Count; x++) { TableCell valueCell = new TableCell(); TextBox valueTxtBox = new TextBox(); valueTxtBox.ID = "ValueTxtBox" + i.ToString() + i + x + x.ToString(); valueTxtBox.Text = dt.Rows[i][x].ToString(); valueCell.Controls.Add(valueTxtBox); valueRow.Cells.Add(valueCell); } newTable.Rows.Add(valueRow); } return newTable; } public DataSet DefaultDataSet(int rows, int cols) { DataSet ds = new DataSet(); DataTable dt = new DataTable("Dimensions"); ds.Tables.Add(dt); DataColumn nameCol = new DataColumn(); nameCol.Caption = "Name"; nameCol.ColumnName = "Name"; nameCol.DataType = System.Type.GetType("System.String"); dt.Columns.Add(nameCol); DataColumn widthCol = new DataColumn(); widthCol.Caption = "Width"; widthCol.ColumnName = "Width"; widthCol.DataType = System.Type.GetType("System.String"); dt.Columns.Add(widthCol); if (cols > 2) { DataColumn heightCol = new DataColumn(); heightCol.Caption = "Height"; heightCol.ColumnName = "Height"; heightCol.DataType = System.Type.GetType("System.String"); dt.Columns.Add(heightCol); } if (cols > 3) { DataColumn depthCol = new DataColumn(); depthCol.Caption = "Depth"; depthCol.ColumnName = "Depth"; depthCol.DataType = System.Type.GetType("System.String"); dt.Columns.Add(depthCol); } if (cols > 4) { int newColCount = cols - 4; for (int i = 0; i < newColCount; i++) { DataColumn newCol = new DataColumn(); newCol.Caption = "New " + i.ToString(); newCol.ColumnName = "New " + i.ToString(); newCol.DataType = System.Type.GetType("System.String"); dt.Columns.Add(newCol); } } for (int i = 0; i < rows; i++) { DataRow newRow = dt.NewRow(); newRow["Name"] = "Name " + i.ToString(); newRow["Width"] = "Width " + i.ToString(); if (cols > 2) { newRow["Height"] = "Height " + i.ToString(); } if (cols > 3) { newRow["Depth"] = "Depth " + i.ToString(); } dt.Rows.Add(newRow); } return ds; } public DataSet XMLToDataSet(string xml) { StringReader sr = new StringReader(xml); DataSet ds = new DataSet(); ds.ReadXml(sr); return ds; } public string DataSetToStringXML(DataSet ds) { XmlDocument _XMLDoc = new XmlDocument(); _XMLDoc.LoadXml(ds.GetXml()); StringWriter sw = new StringWriter(); XmlTextWriter xw = new XmlTextWriter(sw); XmlDocument xml = _XMLDoc; xml.WriteTo(xw); return sw.ToString(); } private int rowCount { get { return (int)ViewState["rowCount"]; } set { ViewState["rowCount"] = value; } } private int colCount { get { return (int)ViewState["colCount"]; } set { ViewState["colCount"] = value; } } Thanks in advance, Marko

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  • JavaScript: How can I delay running some JS code until ALL of my asynchronous JS files downloaded?

    - by Henryh
    UPDATE: I have the following code: <script type="text/javascript"> function addScript(url) { var script = document.createElement('script'); script.src = url; document.getElementsByTagName('head')[0].appendChild(script); } addScript('http://example.com/One.js'); addScript('http://example.com/Two.js'); addScript('http://example.com/Three.js'); addScript('http://example.com/Four.js'); ... // run code below this point once both Two.js & Three.js has been downloaded and excuted </script> How can I prevent code from executing until all required JS have been downloaded and executed? In my example above, those required files being Two.js and Three.js.

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