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  • Unable to validate e-mail format

    - by Aishwarya Shiva Pareek
    I am using this code which was suggested by my friend to validate an email id format in C#. public bool IsValidEmail(string strIn) { string strPattern = "^([0-9a-zA-Z]([-.\\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\\w]*[0-9a-zA-Z]\\.)+[a-zA-Z]{2,9})$"; if (System.Text.RegularExpressions.Regex.IsMatch(strIn, strPattern)) { return true; } return false; } When I pass the value of the strIn as [email protected] This function returns false. Please tell me whats wrong with it?

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  • Adding DataAnnontations to Generated Partial Classes

    - by Naz
    Hi I have a Subsonic3 Active Record generated partial User class which I've extended on with some methods in a separate partial class. I would like to know if it is possible to add Data Annotations to the member properties on one partial class where it's declared on the other Subsonic Generated one I tried this. public partial class User { [DataType(DataType.EmailAddress, ErrorMessage = "Please enter an email address")] public string Email { get; set; } ... } That examples gives the "Member is already defined" error. I think I might have seen an example a while ago of what I'm trying to do with Dynamic Data and Linq2Sql.

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  • Validating an integer or String without try-catch

    - by Phil
    Ok, I'm lost. I am required to figure out how to validate an integer and String, but for some stupid reason, I can't use the Try-Catch method. I know this is the easiest way and so all the solutions on the internet are using it. I'm writing in Java. The deal is this, I need someone to put in an numerical ID and String name. If either one of the two inputs are invalid I must tell them they made a mistake. Can someone help me?

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  • How to access a named element of a derived user control in silverlight ?

    - by Mrt
    Hello, I have a custom base user control in silverlight. <UserControl x:Class="Problemo.MyBaseControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="400"> <Grid x:Name="LayoutRoot" Background="White"> <Border Name="HeaderControl" Background="Red" /> </Grid> </UserControl> With the following code behind public partial class MyBaseControl : UserControl { public UIElement Header { get; set; } public MyBaseControl() { InitializeComponent(); Loaded += MyBaseControl_Loaded; } void MyBaseControl_Loaded(object sender, RoutedEventArgs e) { HeaderControl.Child = Header; } } I have a derived control. <me:MyBaseControl x:Class="Problemo.MyControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" xmlns:me="clr-namespace:Problemo" d:DesignHeight="300" d:DesignWidth="400"> <me:MyBaseControl.Header> <TextBlock Name="header" Text="{Binding Text}" /> </me:MyBaseControl.Header> </me:MyBaseControl> With the following code behind. public partial class MyControl : MyBaseControl { public string Text { get; set; } public MyControl(string text) { InitializeComponent(); Text = text; } } I'm trying to set the text value of the header textblock in the derived control. It would be nice to be able to set both ways, i.e. with databinding or in the derived control code behind, but neither work. With the data binding, it doesn't work. If I try in the code behind I get a null reference to 'header'. This is silverlight 4 (not sure if that makes a difference) Any suggestions on how to do with with both databinding and in code ? Cheers

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  • Custom Java Swing Meter Control

    - by Tyler
    I'm trying to make a custom swing control that is a meter. The arrow will move up and down. Here is my current code, but I feel I've done it wrong. import java.awt.BasicStroke; import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.LinearGradientPaint; import java.awt.Polygon; import java.awt.Stroke; import java.awt.geom.Point2D; import java.awt.geom.Rectangle2D; import javax.swing.JFrame; import javax.swing.JPanel; public class meter extends JFrame { Stroke drawingStroke = new BasicStroke(2); Rectangle2D rect = new Rectangle2D.Double(105, 50, 40, 200); Double meterPercent = new Double(0.57); public meter() { setTitle("Meter"); setLayout(null); setSize(300, 300); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLocationRelativeTo(null); setVisible(true); } public void paint(Graphics g) { // Paint Meter Graphics2D g1 = (Graphics2D) g; g1.setStroke(drawingStroke); g1.draw(rect); // Set Meter Colors Point2D start = new Point2D.Float(0, 0); Point2D end = new Point2D.Float(0, this.getHeight()); float[] dist = { 0.1f, 0.5f, 0.9f }; Color[] colors = { Color.green, Color.yellow, Color.red }; LinearGradientPaint p = new LinearGradientPaint(start, end, dist, colors); g1.setPaint(p); g1.fill(rect); // Make a triangle - Arrow on Meter int[] x = new int[3]; int[] y = new int[3]; int n; // count of points // Set Points for Arrow Integer meterArrowHypotenuse = (int) rect.getX(); Integer meterArrowTip = (int) rect.getY() + (int) (rect.getHeight() * (1 - meterPercent)); x[0] = meterArrowHypotenuse - 25; x[1] = meterArrowHypotenuse - 25; x[2] = meterArrowHypotenuse - 5; y[0] = meterArrowTip - 20; // Top Left y[1] = meterArrowTip + 20; // Bottom Left y[2] = meterArrowTip; // Tip of Arrow n = 3; // Number of points, 3 because its a triangle // Draw Arrow Border Polygon myTriShadow = new Polygon(x, y, n); // a triangle g1.setPaint(Color.black); g1.fill(myTriShadow); // Set Points for Arrow Board x[0] = x[0] + 1; x[1] = x[1] + 1; x[2] = x[2] - 2; y[0] = y[0] + 3; y[1] = y[1] - 3; y[2] = y[2]; Robot robot = new Robot(); Color colorMeter = robot.getPixelColor(x[2]+10, y[2]); // Draw Arrow Polygon myTri = new Polygon(x, y, n); // a triangle Color colr = new Color(colorMeter.getRed(), colorMeter.getGreen(), colorMeter.getBlue()); g1.setPaint(colr); g1.fill(myTri); } public static void main(String[] args) { new meter(); } } Thanks for looking.

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  • [ASP.NET] A CustomValidator doesn't need to have it's ControlToValidate property set, so...

    - by pkiyan
    Hi: I've just finished reading up on the CustomValidator control and I have a question. In the book I'm reading, it says that a CustomValidator doesn't need to have it's ControlToValidate property set and it gives a few examples of that usage. But in one example where ControlToValidate isn't used, the OnServerValidate function has a timer (5 seconds) that you need to beat by entering your 'answer' into a textbox. If it takes you longer than 5 seconds, the CustomValidator's error message pops up next to the textbox (it's like a timed question/answer game) . How did the CustomValidator know to place the message next to the textbox (there's no association between the two, that I know of)? I wanted to test this, so I put a couple more textboxes on the page and the error message always showed up next to the last textbox I placed on the page. Thanks.

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  • Check whether a string is a valid filename with Qt

    - by ereOn
    Hi, Is there a way with Qt 4.6 to check if a given QString is a valid filename (or directory name) on the current operating system ? I want to check for the name to be valid, not for the file to exist. Examples: // Some valid names test under_score .dotted-name // Some specific names colon:name // valid under UNIX OSes, but not on Windows what? // valid under UNIX OSes, but still not on Windows How would I achieve this ? Is there some Qt built-in function ? I'd like to avoid creating an empty file, but if there is no other reliable way, I would still like to see how to do it in a "clean" way. Many thanks.

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  • How to check function parameters in Go

    - by deamon
    Guava Preconditions allows to check method parameters in Java easily. public void doUsefulThings(Something s, int x, int position) { checkNotNull(s); checkArgument(x >= 0, "Argument was %s but expected nonnegative", x); checkElementIndex(position, someList.size()); // ... } These check methods raise exceptions if the conditions are not met. Go has no exceptions but indicates errors with return values. So I wonder how an idiomatic Go version of the above code would look like.

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  • How to give a custom ASP.NET control the ability to parse XML markup to a collection?

    - by Vilx-
    I'm writing a custom ASP.NET webcontrol and would like it to have a collection of custom items which can also be specified in the XML markup. Something like this: class MyControl: WebControl { public IList<MyItemType> MyItems { get; private set; } } And in the markup: <asd:MyControl runat="server" id="mc1"> <MyItems> <MyDerivedCustomItem asd="dsa"/> <MyOtherDerivedCustomItem asd="dsa"/> </MyItems> </asd:MyControl> How do I do this? I though this was all about implementing some interface on the collection or adding some special attributes to the property, but nothing I do seems to work.

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  • Trouble with custom WPF Panel-derived class

    - by chaiguy
    I'm trying to write a custom Panel class for WPF, by overriding MeasureOverride and ArrangeOverride but, while it's mostly working I'm experiencing one strange problem I can't explain. In particular, after I call Arrange on my child items in ArrangeOverride after figuring out what their sizes should be, they aren't sizing to the size I give to them, and appear to be sizing to the size passed to their Measure method inside MeasureOverride. Am I missing something in how this system is supposed to work? My understanding is that calling Measure simply causes the child to evaluate its DesiredSize based on the supplied availableSize, and shouldn't affect its actual final size. Here is my full code (the Panel, btw, is intended to arrange children in the most space-efficient manner, giving less space to rows that don't need it and splitting remaining space up evenly among the rest--it currently only supports vertical orientation but I plan on adding horizontal once I get it working properly): protected override Size MeasureOverride( Size availableSize ) { foreach ( UIElement child in Children ) child.Measure( availableSize ); return availableSize; } protected override System.Windows.Size ArrangeOverride( System.Windows.Size finalSize ) { double extraSpace = 0.0; var sortedChildren = Children.Cast<UIElement>().OrderBy<UIElement, double>( new Func<UIElement, double>( delegate( UIElement child ) { return child.DesiredSize.Height; } ) ); double remainingSpace = finalSize.Height; double normalSpace = 0.0; int remainingChildren = Children.Count; foreach ( UIElement child in sortedChildren ) { normalSpace = remainingSpace / remainingChildren; if ( child.DesiredSize.Height < normalSpace ) // if == there would be no point continuing as there would be no remaining space remainingSpace -= child.DesiredSize.Height; else { remainingSpace = 0; break; } remainingChildren--; } extraSpace = remainingSpace / Children.Count; double offset = 0.0; foreach ( UIElement child in Children ) { //child.Measure( new Size( finalSize.Width, normalSpace ) ); double value = Math.Min( child.DesiredSize.Height, normalSpace ) + extraSpace; child.Arrange( new Rect( 0, offset, finalSize.Width, value ) ); offset += value; } return finalSize; }

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  • When do you trust the data / variables

    - by Wizzard
    We all know that all user data, GET/POST/Cookie etc etc needs to be validated for security. But when do you stop, once it's converted into a local variable? eg if (isValidxxx($_GET['foo']) == false) { throw InvalidArgumentException('Please enter a valid foo!'); } $foo = $_GET['foo']; fooProcessor($foo); function fooProcessor($foo) { if (isValidxxx($foo) == false) { throw Invalid...... } //other stuff } To me thats over the top. But what if you load the value from the database... I hope I make sense :)

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  • User control or custom control for this design?

    - by m0s
    If I want to create a button control like that, is it supposed to be a User Control or a Custom Control? I am not sure maybe something else? Ideally I want to be able style/animate the main button and the inner button separately; also obviously Ill need to process their events separately. These buttons will be created at run-time and Ill need to set the icons dynamically.

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  • how to handel failure mails using PHP?

    - by Navruk
    example:- If i sent a mail through gmail to this id "[email protected]" i got error like "Delivery to the following recipient failed permanently:" My question is:- If i sent using PHP mail function, how can i catch failure email id? code:- // To send HTML mail, the Content-type header must be set $headers = 'MIME-Version: 1.0' . "\r\n"; $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n"; // Additional headers $headers .= 'To: Mary <[email protected]>, Kelly <[email protected]>' . "\r\n"; $headers .= 'From: Birthday Reminder <[email protected]>' . "\r\n"; $headers .= 'Cc: [email protected]' . "\r\n"; $headers .= 'Bcc: [email protected]' . "\r\n"; $to = "[email protected]"; $subject = "Testing"; $message = "Testing body"; mail($to, $subject, $message, $headers);

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