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• How do I pass custom variables to javascript events?

  - by RoboShop

  I have a user control with a javascript function which references some controls within the user control. This user control works perfectly when there is only one instance of it, but I'm now building a page where I have two instances of the user control. In IE7, it works fine, but in FireFox, it is getting confused that there is two functions of the exact same name and signature. So on UserControl1, it'll be running the function in UserControl2 and modifying that content. I'm thinking my best solution would be to pass the clientID of the components I need TO the function instead of just directly referencing it in the function. How would I do that? The signature of the javascript function is like this function nodeClicking(sender, args) and I'm calling it in an event like this <telerik:RadTreeView runat="server" ID="OrgUnitTreeView" OnInit="TreeViewLoad" OnClientNodeClicking="**nodeClicking**" EnableViewState="true" DataTextField = "OrganisationUnitName" DataValueField = "OrganisationUnitCode" DataFieldParentID = "ParentOrganisationUnitCode" DataFieldID = "OrganisationUnitCode"> How do I add extra variables to the function signature.

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• Slider Not Behaving As I Would Expect

  - by Adam Waite

  I have a slider that changes a float from 1 to 10 but I want to save this value and use it across all view controllers so I have saved that float as an NSNumber in a model class (settingsData.sensitivitySliderSettingValue). I am trying to output the updated slider value to the console every time that it is changed however it just gets set to 0 rather than 0 to 10. I don't understand why this is... Here's my code: -(IBAction)sensitivitySliderValueChanged:(id)sender { [self updateSensitivity]; } -(void)updateSensitivity{ settingsData.sensitivitySettingValue = [NSNumber numberWithFloat:sensitivitySlider.value]; NSLog(@"The Slider Value is: %1.1f", [settingsData.sensitivitySettingValue floatValue]); }

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• Adding dynamic controls to Silverlight application after WCF Service Asynchronous Callback

  - by Birk

  I'm trying to add some dynamic controls to my Silverlight page after a WCF call. When I try to add a control to I get an error: Object reference not set to an instance of an object. Here is a simplified version of my code: using edm = SilverlightBusinessApplication.ServiceRefrence; public partial class ListWCF : Page { edm.ServiceClient EdmClient = new ServiceClient(); public ListWCF() { EdmClient.GetTestCompleted += EdmGetTestCompleted; EdmClient.GetTestAsync(); } private void EdmGetTestCompleted(object sender, edm.GetTestCompletedEventArgs e) { //This is where I want to add my controls Button b = new Button(); LayoutRoot.Children.Add(b); //Error: Object reference not set to an instance of an object } } Is it not possible to modify the page after it has been loaded? What am I missing? Thanks

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• how do I get the IP of incoming ICMP due to UDP-send to dead client in Ruby?

  - by banister

  so.. I'm doing a small multiplayer game with blocking UDP and IO.select. To my problem.. (In the server) reading from a UDP socket (packet, sender = @socket.recvfrom(1000)) which have just sent a packet to a dead client results in a ICMP unreachable (and exception Errno::ECONNRESET in ruby). The problem is that I can't find any way whatsoever to extract the IP of that ICMP.. so I can clean out that dead client. Anyone know how to achieve this? thanks

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• How to programmatically change a data cell of Ms Access using VB.Net?

  - by manuel

  I have a Microsoft Access database file connected to VB.NET. In the database table, I have a 'No.' and a 'Status' column. Then I have a textbox where I can input an integer. I also have a button, which will change the data cell in 'Status' where 'No.' = textbox.Text(), when I click it. Let's say I want the 'Status' cell to be changed to "Low". What codes should I put in the button_Click event handler? Here is the codes I used to retrieve and display the database table. Public Class theForm Dim con As New OleDb.OleDbConnection Dim ds As New DataSet Dim daTitles As OleDb.OleDbDataAdapter Private Sub theForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load con.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=|DataDirectory|\db1.mdb" con.Open() daTitles = New OleDb.OleDbDataAdapter("SELECT * FROM Titles", con) daTitles.Fill(ds, "Titles") DataGridView1.DataSource = ds.Tables("Titles") DataGridView1.AutoResizeColumns() End Sub

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• I have Following code but rest of it how?

  - by Hakan

  I have following code which is putting value of text box to table but i can't manage how to delete record. Can someone help me about it? Dim meter As DataTable = Me.DataSet1.Tables.Item("tblmeter") Dim row As DataRow = meter.NewRow() row.Item("No") = Me.txtno.Text row.Item("Turnover") = Me.txtturnover.Text row.Item("Total Win") = Me.txttotalwin.Text row.Item("Games Played") = Me.txtgamesplayed.Text row.Item("Credit In") = Me.txtcreditin.Text row.Item("Bill In") = Me.txtbillin.Text row.Item("Hand Pay") = Me.txthandpay.Text row.Item("Date") = DateTime.Today.ToShortDateString meter.Rows.Add(row) Me.TblMeterTableAdapter.Update(Me.DataSet1.tblMeter) meter.AcceptChanges() Dim table As DataTable = Me.DataSet1.Tables.Item("tblmeter") Dim defaultView As DataView = table.DefaultView Dim cell As New DataGridCell((defaultView.Table.Rows.Count - 1), 1) Me.DataGrid1.CurrentCell = cell txtno.Text = "" txtturnover.Text = "" txttotalwin.Text = "" txtgamesplayed.Text = "" txtcreditin.Text = "" txtbillin.Text = "" txthandpay.Text = "" txtno.Focus() I am using following code but it's not update records. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim current As DataRowView = DirectCast(Me.BindingContext.Item(Me.DataSet1.Tables.Item("tblmeter")).Current, DataRowView) current.Delete() Me.DataSet1.tblMeter.AcceptChanges() Me.TblMeterTableAdapter.Update(Me.DataSet1.tblMeter) End Sub Code deletes records from datagrid but not updating. Any help

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• Sending BCC emails using a SMTP server?

  - by Alix Axel

  I've had this noted down on some of my code for a while: /** * Add a BCC. * * Note that according to the conventions of the SMTP protocol all * addresses, including BCC addresses, are included in every email as it * is sent over the Internet. The BCC addresses are stripped off blind * copy email only at the destination email server. * * @param string $email * @param string $name * @return object Email */ I don't remember where I got it from but that shouldn't be relevant to this question. Basically, whenever I try to send an email with BCCs via SMTP the BCC addresses are not hidden - I've read the whole RFC for the SMTP protocol (a couple years ago) and I don't think I'm missing anything. The strange thing is, if I send an email with BCCs using the built-in mail() function everything works just right and I've no idea why - I would like to roll my own email sender but I fail to understand this. Can someone please shed some light into this dark subject?

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• how do I get the index of a firing context menu item

  - by fishhead

  I would like to determine the index of the selected context menu item. But I don't want to build a unique eventhandler for each menu item...how do I do this MenuItem mi= StatusContextMenu.MenuItems.Add("Set option"); mi.MenuItems.Add(0,new MenuItem("Set to A", new EventHandler(SetLetter)) ); mi.MenuItems.Add(1,new MenuItem("Set to B", new EventHandler(SetLetter))); mi.MenuItems.Add(2,new MenuItem("Set to C ", new EventHandler(SetLetter))); mi.MenuItems.Add(3,new MenuItem("Set to D", new EventHandler(SetLetter))); private void SetLetter(object sender, System.EventArgs e) { index = ???? } C#, .net 2.0

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• Passing Text for command line

  - by Kasun

  Hi, I need to pass some text which is in richtext box to command line. This is my Button click even which start the cmd. private void button1_Click(object sender, EventArgs e) { ProcessStartInfo psi = new ProcessStartInfo { FileName = "cmd", Arguments = @"/k ""C:\Program Files\Microsoft Visual Studio 9.0\VC\bin\vcvars32.bat""", }; Process.Start(psi); } In my rich text box contain following text. include iostream using namespace std; int main() { cout << "Welcome to the wonderful world of C++!!!\n"; return 0; } Can anyone provide me necessary codes.

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• how to set(get) cookie value in ext.net

  - by user591587

  scene: when I click item in ext:ComboBox and want to set the item selected value to cookie variable. Finally, after I click ext:Button, the ext:Label get cookie value and display it. But I get a error :Ext.Ajax Communication Failure , any help will be appreciated. aspx: <ext:ComboBox ID="ComboBox1" runat="server" StoreID="Store1" Width="100" Editable="false" DisplayField="name" ValueField="value" Mode="Local" TriggerAction="All`enter code here`" EmptyText="Select a locale..."> ..... aspx.cs protected void lngIndexChanged(object sender, DirectEventArgs e) { //Sets the cookie that is to be used by Global.asax HttpCookie cookie = new HttpCookie("CultureInfo"); cookie.Value = ComboBox1.SelectedItem.Value ; Response.Cookies.Add(cookie); Label1.Text = cookie.Value; //Set the culture and reload for immediate effect. //Future effects are handled by Global.asax Thread.CurrentThread.CurrentCulture = new CultureInfo(ComboBox1.SelectedItem.Value); Thread.CurrentThread.CurrentUICulture = new CultureInfo(ComboBox1.SelectedItem.Value); }

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• Twitter + OAuth Problem -- Cancel Button

  - by Adam Storr

  Hi everyone, I'm implementing OAuth to post on Twitter... which works perfectly. My issue is for those who entered the Twitter login area by accident and want to press the "Cancel" button. Unfortunately, the "Cancel" button is dismissed but then immediately reappears. Here is the code for the "Cancel" button: - (void)cancel:(id)sender { if ([_delegate respondsToSelector: @selector(OAuthTwitterControllerCanceled:)]) [_delegate OAuthTwitterControllerCanceled: self]; [self performSelector: @selector(dismissModalViewControllerAnimated:) withObject: (id) kCFBooleanTrue afterDelay: 0.0]; } I think what I need to do is put the right code in the viewDidDisappear area... the problem is I don't know what code to put in. Any help would be great! Thanks so much!

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• iPhone - dealloc subview UIViewController when removeFromSuperview

  - by bbullis21

  I have several buttons on my main UIViewController (main menu) that creates and adds a subview UIViewController on top of the main menu. When I remove the subview the memory from that controller is not released. How can I release that subviews memory instantly? Does anyone have an example? This would solve all my problems! Thanks in advance. Here is how I add a subview if((UIButton *) sender == gameClassicBtn) { GameClassic *gameClassicController = [[GameClassic alloc] initWithNibName:@"GameClassic" bundle:nil]; self.gameClassic = gameClassicController; [gameClassicController release]; [self.view insertSubview:gameClassicController.view atIndex:1]; }

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• Console.Write Not Working In Win Forms App

  - by Steven

  I created a VB.NET Windows Forms Application in Visual Studio 2008. When I run my program from the command-line, I get no output (only the next prompt). What am I doing wrong? Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Debug.Write("Foo") Debug.Flush() Console.WriteLine("foo") Console.Beep(800, 100) 'confirm this function is called' Me.Close() End Sub EDIT: Can a program have a form and a console? EDIT2: Ho's answer works. However, the output appears on the next command-line prompt. Can a Winforms application tell the command-line to wait until it's finished instead of immediately returning?

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• Does Adorner breaks MVVM?

  - by Padu Merloti

  I'm developing a WPF app using MVVM. Most of my views have only xaml markup and nothing (except default boilerplate) on code behind. All except one view that I use adorners to "blacken" the screen when I want to make the whole screen disabled. private void Window_Loaded(object sender, RoutedEventArgs e) { //todo: transfer to modelview contentAreaAdorner = AdornerLayer.GetAdornerLayer(contentArea); waitingAdorner = new WaitingAdorner(contentArea); } Is that ok? Or is there a better way to implement this in my viewmodel?

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• "Collection was modified; enumeration operation may not execute." on form disposal.

  - by cyclotis04

  "Collection was modified; enumeration operation may not execute." appears to be a common error with foreach loops, but I can't figure mine out. I have two classes of forms. One is begun on startup, and a button creates new instances of the second form, and displays them. When I close the secondary forms, I get an InvalidOperationException. FirstForm.cs public partial class FirstForm : Form { SecondForm frmSecond; ... private void button1_Click(object sender, EventArgs e) { frmSecond= new SecondForm (); frmSecond.Show(); } } SecondForm.designer.cs partial class SecondForm { ... protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); // InvalidOperationException thrown here. } }

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• How to show Label1.Text for each item in a foreach statement?

  - by Mike108

  I want to show each item Id that is doing now dynamically in a foreach statement. But the following code only shows the last item Id in Label1.Text. How to show Label1.Text for each item in a foreach statement? I use asp.net C#. protected void Button1_Click(object sender, EventArgs e) { List<int> list = new List<int>() { 1,2,3,4,5 }; foreach (var item in list) { Label1.Text = string.Format("I'm doing item {0} now.", item.ToString()); Thread.Sleep(1 * 1000); } }

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• How do i reset values of dynamically created controls on ASP .NET c# page?

  - by Euclid

  i have an array of buttons added to a panel control and need to reset them to their original values, is this possible pragmatically? protected void Page_Load(object sender, EventArgs e) { RenderTable(); } private void RenderTable() { Button[] board = new Button[9]; for(int i =0; i <board.Length; i++) { board[i] = new Button(); board[i].Text = " "; board[i].Width= board[i].Height = 50; board[i].Click += PlayerClick; board[i].ID = "pos" + i; Panel1.Controls.Add(board[i]); } }

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• Does any one knows how to use the WinHttpRequest to login facebook or gmail in VB.NET(2010 Version)?

  - by ???

  Now, I can download the webpage source code to the RichTextBox. But now I want to use the WinHttpRequest to login facebook or gmail,etc. I tried to do, but it didn't work!Any one can help me? Thnak you! This is my code: Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click RichTextBox1.Text = winhttp("http://www.facebook.com") End Sub Function winhttp(ByVal URL As String) As String Dim pass, email As String pass = "my password" email = "myemail" Dim winHTTPReq : winHTTPReq = CreateObject("WinHttp.WinHttpRequest.5.1") Dim objhttp As Object = CreateObject("WinHttp.WinHttpRequest.5.1") Dim Data As String objhttp.Open("POST", URL, False) ''method objhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded") objhttp.setRequestHeader("Referer", "your refresh url") objhttp.send("email=" & email & "&pass=" & pass & "&perm_login=on") objhttp.WaitForResponse() Data = objhttp.responseText Data = Replace(Data, " ", "") Data = Replace(Data, vbTab, "") Data = Replace(Data, vbCrLf, "") Data = Replace(Data, " ", "") Return Data End Function End Class

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• Find directory on different server C#

  - by rainhider

  I have a website on Server A and it needs to find a directory on Server B. On my aspx page, I have: <mb:FileSystemDataSource ID="fileSystemDataSource" runat="server" RootPath="\\servername\Folder\Subfolder" FoldersOnly="true" /> mb is assembly name alias. On my aspx.cs page, I have: protected void Page_Load(object sender, EventArgs e) { DataTable gridviewSource = DisplayFilesInGridView(); DataRow gridviewRow; //sets the server path so it does not default to current server string ServerPath = System.IO.Path.Combine( "//", this.fileSystemDataSource.RootPath); //Get All Folders Or Directories and add in table DirectoryInfo directory = new DirectoryInfo(Server.MapPath(ServerPath)); DirectoryInfo[] subDirectories = directory.GetDirectories(); } Well, it throws an error on the Server.MapPath because it cannot find the server. I am connected to the network. I looked at IIS, and I am pretty sure that is not the problem. If so, I would really need specifics. Any help would be appreciated.

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• MSNP-SHARP how to send an hello message to an user that changed status from offline to online

  - by Constantine

  I tried in this way. I subscribed to that event who control the user status, its announcing me that user in Online. my code is: void Nameserver_ContactOnline(object sender, ContactEventArgs e) { Talk = messenger.CreateConversation(); Talk.Invite(e.Contact.Mail,ClientType.PassportMember); Talk.SendTextMessage(new TextMessage(Msg)); Talk.End(); LogEvent("Contact online " + e.Contact.Name.ToString() + " " + e.Contact.Mail.ToString()); } someone can give me a hint ? maybe i do something wrong because message wasn't sent. thanks.

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• Emailing HTML from within an iPhone app is stopping at special characters

  - by user141146

  Hi, I have an iPhone app that will let users email some pre-determined text as HTML. I'm having a problem in that if the text contains special characters within the text (e.g., ampersand &, , <), the NSString variable that I use for sending the body of the email gets truncated at the special character. I'm not sure how to fix this (I tried using the method stringByAddingPercentEscapesUsingEncoding…but this hasn't fixed the problems). Thoughts on what I'm doing wrong / how to fix it? Here is sample code showing what I'm trying to do Thanks!!! - (void)send_an_email:(id)sender { NSString *subject_string = [NSString stringWithFormat:@"Summary of %@", commercial_name]; NSString *body_string = [NSString stringWithFormat:@"%@<br /><br />", [self.dl email_message]]; // email_message returns the body of text that should be shipped as html. If email_message contains special characters, the text truncates at the special character NSString *full_string = [NSString stringWithFormat:@"mailto:?to=&subject=%@&body=%@", [subject_string stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding], [body_string stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; [[UIApplication sharedApplication] openURL:[[NSURL alloc] initWithString:full_string]]; }

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• Overriding Page class constructor in ASP.NET code-behind file -- when is it called?

  - by CSharp Noob

  If I override the System.Web.UI.Page constructor, as shown, when does DoSomething() get called in terms of the page lifecycle? I can't seem to find this documented anywhere. namespace NameSpace1 { public partial class MyClass : System.Web.UI.Page { public MyClass() { DoSomething(); } protected void Page_Load(object sender, EventArgs e) { } } } For reference, here is the ASP.NET Page Lifecycle Overview: http://msdn.microsoft.com/en-us/library/ms178472.aspx Turns out the best answer was right in the MSDN article. I just had to look carefully at the diagram.

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• How do I let main thread suspend and wait for the System.Timer.Timer running

  - by Kelvin

  Hi I am using System.Timer.Timer I always get NULL after running my programme and it only works if I add this.sleep(6000). Suppose the reason is the main thread ends but the timer hasn't finished ... Here is the class and I call the class from my main form. Class class1 { string finalResult = ""; public string getNumber() { RunTimer(); return finalResult; } pubic void RunTimer () { timer = new System.Timers.Timer(30000); timer.Interval = 1000; timer.Elapsed += new System.Timers.ElapsedEventHandler(cal); timer.Start(); } private void cal(object sender,System.Timers.ElapsedEventArgs e) { finalResult += READFROMCOMPORT; } }

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• Error on Sending mail asp.net mvc

  - by sagar

  Hi whenever i am trying to send the mail from my application on account creation i get the following error. User not local; please try a different path. The server response was: Bad Recipient at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, SmtpFailedRecipientException& exception) Smtp settings provided by client is all right.When i replace my smtp setting with gmail smtp settings on web.config mail is going smoothly.but when my smtp setting is set to the smtp setting provided by client above error occurs. I have the folloeing in my web.config.

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• Is it possible that __doPostBack() would ever send a GET request?

  - by Galilyou

  I'm having a problem with telerik RadGrid, I want to enable multiple row selection. I also want to go to the server whenever a row is selected or deselected. I created a javascript function to handle the Grid's client side events (OnRowSelected, and OnRowDeSelected). The functions look like this: function onOperationRowSelected(sender, eventArgs) { __doPostBack("<%=myControl.ClientID %>", "rowSelected:" + eventArgs.get_itemIndexHierarchical()); } The other function is very similar, the only difference is that it sends the string "rowDeselcted" instead of "rowSelected". On Page_Load I check to see if the request is a Post request using "IsPostBack" and if so, I check to see if it's a rowSelected or rowdeselected. My problem is when I select a first raw on my grid, a Post request happens (which is expected), however, when I select the second row, a GET request is issued, which (obviously) will result in IsPostBack returning false. What am I missing here?

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