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• System.Reflection and InvokeMember, storing type, assembly, and object in a class

  - by Cyclone

  I have tested code to call a method inside of a compiled DLL, and it works. I created a class to store the object, type, and loaded assembly, but something is lost in translation because it is unable to find the member I wish to invoke. If I create a type, object, and assembly, and properly load everything into these and perform InvokeMember on the type, it works just fine. However, when I use the things inside of my class, it throws a MissingMemberException and does not invoke the member, obviously. What am I doing wrong? The member in question is a subroutine which takes one argument, a string. This is quite frustrating. Code being called: Dim MyLoadedAssembly As New LoadedAssembly() MyLoadedAssembly.MyAssembly = Assembly.LoadFrom("display.dll") MyLoadedAssembly.MyObject = MyLoadedAssembly.MyAssembly.CreateInstance("Display.UI.Window") MyLoadedAssembly.MyType = MyLoadedAssembly.MyAssembly.GetType("Display.UI.Window") Dim args() As Object = {"test"} MyLoadedAssembly.InvokeMember("Show", args) Private Class LoadedAssembly Public MyType As Type Public MyObject As Object Public MyAssembly As Assembly Public Function InvokeMember(ByVal name As String, ByVal args() As Object) Return MyType.InvokeMember(name, BindingFlags.Default Or BindingFlags.InvokeMethod Or BindingFlags.GetProperty Or BindingFlags.Instance, Nothing, MyObject, args) End Function End Class Code inside of display.dll: Namespace UI Public Class Window Private wind As New System.Windows.Forms.Form Public FullScreen As Boolean = False Public Overloads Sub Show(ByVal text As String) wind.Show() wind.Text = text End Sub Public Overloads Sub Show() wind.Show() End Sub End Class End Namespace The root namespace for display.dll is Display. Why is my code only working when not within this class? System.MissingMethodException was unhandled Message="Method 'Display.UI.Window.Show' not found." Source="mscorlib" StackTrace: at System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams) at System.Type.InvokeMember(String name, BindingFlags invokeAttr, Binder binder, Object target, Object[] args) at IDE.IDE.LoadedAssembly.InvokeMember(String name, Object[] args) in C:\Documents and Settings\Davey\Desktop\RaptorScript\RaptorScript\RaptorScript\IDE.vb:line 69 at IDE.IDE.IDE_Load(Object sender, EventArgs e) in C:\Documents and Settings\Davey\Desktop\RaptorScript\RaptorScript\RaptorScript\IDE.vb:line 50 at System.EventHandler.Invoke(Object sender, EventArgs e) at System.Windows.Forms.Form.OnLoad(EventArgs e) at System.Windows.Forms.Form.OnCreateControl() at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible) at System.Windows.Forms.Control.CreateControl() at System.Windows.Forms.Control.WmShowWindow(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.ContainerControl.WndProc(Message& m) at System.Windows.Forms.Form.WmShowWindow(Message& m) at System.Windows.Forms.Form.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.SafeNativeMethods.ShowWindow(HandleRef hWnd, Int32 nCmdShow) at System.Windows.Forms.Control.SetVisibleCore(Boolean value) at System.Windows.Forms.Form.SetVisibleCore(Boolean value) at System.Windows.Forms.Control.set_Visible(Boolean value) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.Run(ApplicationContext context) at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun() at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel() at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine) at IDE.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81 at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException:

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• JSF with Enum 'Validation Error: Value is not valid'

  - by Shamik

  I have an enum whose code is like this - public enum COSOptionType { NOTAPPLICABLE, OPTIONAL, MANDATORY; private String[] label = { "Not Applicable", "Optional", "Mandatory"}; @Override public String toString() { return label[this.ordinal()]; } public static COSOptionType getCOSOption(String value) { int ivalue = Integer.parseInt(value); switch(ivalue) { case 0: return NOTAPPLICABLE; case 1: return OPTIONAL; case 2: return MANDATORY; default: throw new RuntimeException("Should not get this far ever!"); } } } I have the converter to convert the enum type public class COSEnumConverter implements Converter { public Object getAsObject(FacesContext context, UIComponent comp, String value) { return COSOptionType.getCOSOption(value); } public String getAsString(FacesContext context, UIComponent comp, Object obj) { if (obj instanceof String) { return (String) obj; } COSOptionType type = (COSOptionType) obj; int index = type.ordinal(); return ""+index; } } The view looks like this <h:selectOneMenu value="#{controller.type}" id="smoking"> <f:selectItems value="#{jnyController.choices}" /> </h:selectOneMenu> Here is the code for create choices private List<SelectItem> createChoicies() { List<SelectItem> list = new ArrayList<SelectItem>(); for (COSOptionType cos : COSOptionType.values()) { SelectItem item = new SelectItem(); item.setLabel(cos.toString()); item.setValue("" + cos.ordinal()); list.add(item); } return list; } I do not understand why this would throw "validation error" all the time ? I can debug and see that the converter is working fine. NOTE: I am using JSF 1.1

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• C# 4.0: COM Interop Improvements

  - by Paulo Morgado

  Dynamic resolution as well as named and optional arguments greatly improve the experience of interoperating with COM APIs such as Office Automation Primary Interop Assemblies (PIAs). But, in order to alleviate even more COM Interop development, a few COM-specific features were also added to C# 4.0. Ommiting ref Because of a different programming model, many COM APIs contain a lot of reference parameters. These parameters are typically not meant to mutate a passed-in argument, but are simply another way of passing value parameters. Specifically for COM methods, the compiler allows to declare the method call passing the arguments by value and will automatically generate the necessary temporary variables to hold the values in order to pass them by reference and will discard their values after the call returns. From the point of view of the programmer, the arguments are being passed by value. This method call: object fileName = "Test.docx"; object missing = Missing.Value; document.SaveAs(ref fileName, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing); can now be written like this: document.SaveAs("Test.docx", Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value); And because all parameters that are receiving the Missing.Value value have that value as its default value, the declaration of the method call can even be reduced to this: document.SaveAs("Test.docx"); Dynamic Import Many COM methods accept and return variant types, which are represented in the PIAs as object. In the vast majority of cases, a programmer calling these methods already knows the static type of a returned object form the context of the call, but has to explicitly perform a cast on the returned values to make use of that knowledge. These casts are so common that they constitute a major nuisance. To make the developer’s life easier, it is now possible to import the COM APIs in such a way that variants are instead represented using the type dynamic which means that COM signatures have now occurrences of dynamic instead of object. This means that members of a returned object can now be easily accessed or assigned into a strongly typed variable without having to cast. Instead of this code: ((Excel.Range)(excel.Cells[1, 1])).Value2 = "Hello World!"; this code can now be used: excel.Cells[1, 1] = "Hello World!"; And instead of this: Excel.Range range = (Excel.Range)(excel.Cells[1, 1]); this can be used: Excel.Range range = excel.Cells[1, 1]; Indexed And Default Properties A few COM interface features are still not available in C#. On the top of the list are indexed properties and default properties. As mentioned above, these will be possible if the COM interface is accessed dynamically, but will not be recognized by statically typed C# code. No PIAs – Type Equivalence And Type Embedding For assemblies indentified with PrimaryInteropAssemblyAttribute, the compiler will create equivalent types (interfaces, structs, enumerations and delegates) and embed them in the generated assembly. To reduce the final size of the generated assembly, only the used types and their used members will be generated and embedded. Although this makes development and deployment of applications using the COM components easier because there’s no need to deploy the PIAs, COM component developers are still required to build the PIAs.

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• jQuery to populate form fields based on first entered value where number of fields is unknown

  - by da5id

  Greetings, I have a form with a variable number of inputs, a simplified version of which looks like this: <form> <label for="same">all the same as first?</label> <input id="same" name="same" type="checkbox" /> <input type="text" id="foo[1]" name="foo[1]" value="" /> <input type="text" id="foo[2]" name="foo[2]" value="" /> <input type="text" id="foo[3]" name="foo[3]" value="" /> <input type="text" id="foo[4]" name="foo[4]" value="" /> <input type="text" id="foo[5]" name="foo[5]" value="" /> </form> The idea is to tick the #same checkbox and have jQuery copy the value from #foo[1] into #foo[2], #foo[3], etc. They also need to clear if #same is unchecked. There can be any number of #foo inputs, based upon input from a previous stage of the form, and this bit is giving me trouble. I'm sure I'm missing something obvious, but I can't get any variation on $('#dest').val($('#source').val()); to work. Help!

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• Working with Resources in WPF

  - by Coesy

  I am wanting to use the example from http://blogs.microsoft.co.il/blogs/tomershamam/archive/2008/09/22/lt-howto-gt-replace-listview-columns-with-rows-lt-howto-gt.aspx However I don't want to put this into the App.xaml code as this will apply to ALL gridviews, how do I apply this example to a select few gridviews in the application? The Resources look like this <Style TargetType="{x:Type GridViewHeaderRowPresenter}"> <Setter Property="Height" Value="80" /> <Setter Property="LayoutTransform"> <Setter.Value> <TransformGroup> <RotateTransform Angle="-90" /> <ScaleTransform ScaleY="-1" /> </TransformGroup> </Setter.Value> </Setter> </Style> <Style TargetType="{x:Type GridViewRowPresenter}"> <Setter Property="LayoutTransform"> <Setter.Value> <TransformGroup> <RotateTransform Angle="-90" /> <ScaleTransform ScaleY="-1" /> </TransformGroup> </Setter.Value> </Setter> </Style> <LinearGradientBrush x:Key="GridViewColumnHeaderBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#FFFFFFFF" Offset="0"/> <GradientStop Color="#FFFFFFFF" Offset="0.4091"/> <GradientStop Color="#FFF7F8F9" Offset="1"/> </LinearGradientBrush> <LinearGradientBrush x:Key="GridViewColumnHeaderBorderBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#FFF2F2F2" Offset="0"/> <GradientStop Color="#FFD5D5D5" Offset="1"/> </LinearGradientBrush> <LinearGradientBrush x:Key="GridViewColumnHeaderHoverBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#FFBDEDFF" Offset="0"/> <GradientStop Color="#FFB7E7FB" Offset="1"/> </LinearGradientBrush> <LinearGradientBrush x:Key="GridViewColumnHeaderPressBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#FF8DD6F7" Offset="0"/> <GradientStop Color="#FF8AD1F5" Offset="1"/> </LinearGradientBrush> <Style x:Key="GridViewColumnHeaderGripper" TargetType="{x:Type Thumb}"> <Setter Property="Canvas.Right" Value="-9"/> <Setter Property="Width" Value="18"/> <Setter Property="Height" Value="{Binding Path=ActualHeight, RelativeSource={RelativeSource TemplatedParent}}"/> <Setter Property="Padding" Value="0"/> <Setter Property="Background" Value="{StaticResource GridViewColumnHeaderBorderBackground}"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Thumb}"> <Border Background="Transparent" Padding="{TemplateBinding Padding}"> <Rectangle Fill="{TemplateBinding Background}" HorizontalAlignment="Center" Width="1"/> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style TargetType="{x:Type GridViewColumnHeader}"> <Setter Property="HorizontalContentAlignment" Value="Center"/> <Setter Property="VerticalContentAlignment" Value="Center"/> <Setter Property="Background" Value="{StaticResource GridViewColumnHeaderBackground}"/> <Setter Property="BorderBrush" Value="{StaticResource GridViewColumnHeaderBorderBackground}"/> <Setter Property="BorderThickness" Value="0"/> <Setter Property="Padding" Value="2,0,2,0"/> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type GridViewColumnHeader}"> <Grid SnapsToDevicePixels="true"> <Border x:Name="HeaderBorder" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0,1,0,1"> <Grid> <Grid.RowDefinitions> <RowDefinition MaxHeight="7"/> <RowDefinition/> </Grid.RowDefinitions> <Rectangle Fill="#FFE3F7FF" x:Name="UpperHighlight" Visibility="Collapsed"/> <Border Grid.RowSpan="2" Padding="{TemplateBinding Padding}"> <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="0,0,0,1" x:Name="HeaderContent" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" RecognizesAccessKey="True"> <ContentPresenter.LayoutTransform> <TransformGroup> <ScaleTransform ScaleY="-1" /> <RotateTransform Angle="90" /> </TransformGroup> </ContentPresenter.LayoutTransform> </ContentPresenter> </Border> </Grid> </Border> <Border Margin="1,1,0,0" x:Name="HeaderHoverBorder" BorderThickness="1,0,1,1"/> <Border Margin="1,0,0,1" x:Name="HeaderPressBorder" BorderThickness="1,1,1,0"/> <Canvas> <Thumb x:Name="PART_HeaderGripper" Style="{StaticResource GridViewColumnHeaderGripper}"/> </Canvas> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="true"> <Setter Property="Background" TargetName="HeaderBorder" Value="{StaticResource GridViewColumnHeaderHoverBackground}"/> <Setter Property="BorderBrush" TargetName="HeaderHoverBorder" Value="#FF88CBEB"/> <Setter Property="Visibility" TargetName="UpperHighlight" Value="Visible"/> <Setter Property="Background" TargetName="PART_HeaderGripper" Value="Transparent"/> </Trigger> <Trigger Property="IsPressed" Value="true"> <Setter Property="Background" TargetName="HeaderBorder" Value="{StaticResource GridViewColumnHeaderPressBackground}"/> <Setter Property="BorderBrush" TargetName="HeaderHoverBorder" Value="#FF95DAF9"/> <Setter Property="BorderBrush" TargetName="HeaderPressBorder" Value="#FF7A9EB1"/> <Setter Property="Visibility" TargetName="UpperHighlight" Value="Visible"/> <Setter Property="Fill" TargetName="UpperHighlight" Value="#FFBCE4F9"/> <Setter Property="Visibility" TargetName="PART_HeaderGripper" Value="Hidden"/> <Setter Property="Margin" TargetName="HeaderContent" Value="1,1,0,0"/> </Trigger> <Trigger Property="Height" Value="Auto"> <Setter Property="MinHeight" Value="20"/> </Trigger> <Trigger Property="IsEnabled" Value="false"> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> <Style.Triggers> <Trigger Property="Role" Value="Floating"> <Setter Property="Opacity" Value="0.4082"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type GridViewColumnHeader}"> <Canvas x:Name="PART_FloatingHeaderCanvas"> <Rectangle Fill="#FF000000" Width="{TemplateBinding ActualWidth}" Height="{TemplateBinding ActualHeight}" Opacity="0.4697"/> </Canvas> </ControlTemplate> </Setter.Value> </Setter> </Trigger> <Trigger Property="Role" Value="Padding"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type GridViewColumnHeader}"> <Border x:Name="HeaderBorder" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0,1,0,1"/> <ControlTemplate.Triggers> <Trigger Property="Height" Value="Auto"> <Setter Property="MinHeight" Value="20"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Trigger> </Style.Triggers> </Style> I have tried creating a usercontrol and sticking that lot in the UserControl.Resources section but it didn't work, I can only get this example to work if i put them into the Application.Resources section which i obviously don't want. Help!! :-)

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• How to use jquery+thickbox open the SubForm, and pass the value to parent form

  - by Curie

  like this example: aa.jsp(parent form) <head> <script language="javascript" type="text/javascript" src="<%=basePath%>js/jquery-1.7.2.min.js"></script> <script language="javascript" type="text/javascript" src="<%=basePath%>js/thickbox.js"></script> <link rel="stylesheet" type="text/css" href="<%=basePath%>js/thickbox.css"> </head> <body> <a href="bb.jsp?TB_iframe=true&placeValuesBeforeTB_=savedValues&height=400&width=170" title="input value" class="thickbox"> <input type="text" name="txtA" id="txtA"/> </a> </body> I use the js of jquery and thickbox in the head. And apply them. Click txt textbox to open sub page. bb.jsp(sub form): <body> <input type="text" name="txtB" id="txtB"> </body> There is one textbox txtB in sub page. How could I type the context in textbox txtB of bb.jsp, and pass the context to parent page of aa.jsp. Then the context will be diaplayed in textbox txtA in parent page.

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• Set predefine form value (webbrowser control)

  - by Khou

  Hi I want to load my windows form: web browser thats using the webbrowser control, It would load a web page, and load my defination and search for elements that has been define, it will then assign the default values and these values can not be changed by the end user. Example If my application finds "FirstName" it would always assign the value "John" If my application finds "LastName" it would always assign the value "Smith" (these values should not be changed by the end user). Here's how to do it in HTML/JAVASCRIPT, but how do i do this in a windows form? HTML <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>page title</title> <script script type="text/javascript" src="demo1.js"></script> </head> <body onload="def(document.someform, 'name', 'my default name value');"> <h2 style="color: #8e9182">test form title</h2> <form name="someform" id="someform_frm" action="#"> <table cellspacing="1"> <tr><td><label for="name">NameX: </label></td><td><input type="text" size="30" maxlength="155" name="name" onchange="def(document.someform, 'name', 'my default name value');"></td></tr> <tr><td><label for="name2">NameY: </label></td><td><input type="text" size="30" maxlength="155" name="name2"></td></tr> <tr><td colspan="2"><input type="button" name="submit" value="Submit" onclick="showFormData(this.form);" ></td></table> </form> </body> </html> JAVASCRIPT function def(oForm, element_name, def_txt) { oForm.elements[element_name].value = def_txt; }

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• XAML Binding to complex value objects

  - by Gus

  I have a complex value object class that has 1) a number or read-only properties; 2) a private constructor; and 3) a number of static singleton instance properties [so the properties of a ComplexValueObject never change and an individual value is instantiated once in the application's lifecycle]. public class ComplexValueClass { /* A number of read only properties */ private readonly string _propertyOne; public string PropertyOne { get { return _propertyOne; } } private readonly string _propertyTwo; public string PropertyTwo { get { return _propertyTwo; } } /* a private constructor */ private ComplexValueClass(string propertyOne, string propertyTwo) { _propertyOne = propertyOne; _propertyTwo = PropertyTwo; } /* a number of singleton instances */ private static ComplexValueClass _complexValueObjectOne; public static ComplexValueClass ComplexValueObjectOne { get { if (_complexValueObjectOne == null) { _complexValueObjectOne = new ComplexValueClass("string one", "string two"); } return _complexValueObjectOne; } } private static ComplexValueClass _complexValueObjectTwo; public static ComplexValueClass ComplexValueObjectTwo { get { if (_complexValueObjectTwo == null) { _complexValueObjectTwo = new ComplexValueClass("string three", "string four"); } return _complexValueObjectTwo; } } } I have a data context class that looks something like this: public class DataContextClass : INotifyPropertyChanged { private ComplexValueClass _complexValueClass; public ComplexValueClass ComplexValueObject { get { return _complexValueClass; } set { _complexValueClass = value; PropertyChanged(this, new PropertyChangedEventArgs("ComplexValueObject")); } } } I would like to write a XAML binding statement to a property on my complex value object that updates the UI whenever the entire complex value object changes. What is the best and/or most concise way of doing this? I have something like: <Object Value="{Binding ComplexValueObject.PropertyOne}" /> but the UI does not update when ComplexValueObject as a whole changes.

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• User entered value validation and level of error catching

  - by Terry

  May I ask should the error catching code be placed at the lowest level or at the top as I am not sure what is the best practice? I prefer placing at the bottom, example a, as Example a public static void Main(string[] args) { string operation = args[0]; int value = Convert.ToInt32(args[1]); if (operation == "date") { DoDate(value); } else if (operation == "month") { DoMonth(value); } } public static void DoMonth(int month) { if (month < 1 || month > 12) { throw new Exception(""); } } public static void DoDate(int date) { if (date < 1 || date > 31) { throw new Exception(""); } } or example b public static void Main(string[] args) { string operation = args[0]; int value = Convert.ToInt32(args[1]); if (operation == "date" && (date < 1 || date > 12)) { throw new Exception(""); } else if (operation == "month" && (month < 1 || month > 31)) { throw new Exception(""); } if (operation == "date") { DoDate(value); } else if (operation == "month") { DoMonth(value); } } public static void DoMonth(int month) { } public static void DoDate(int date) { }

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• Azure Table Storage rejects an entity with a Property whose value is an Interface

  - by Andrew B Schultz

  I have a type called "Comment" that I'm saving to Azure Table Storage. Since a comment can be about any number of other types, I created an interface which all of these types implement, and then put a property of type ICommentable on the comment. So Comment has a property called About of type ICommentable. When I try to save a Comment to Azure Table Storage, if the Comment.About property has a value, I get the worthless invalid input error. However, if there is no value for Comment.About, I have no problem. Why would this be? Comment.About is not the only property that is a reference type. For example, Comment.From is a reference type, but the Comment.About is the only property of a type that is an interface. Fails: var comment = new Comment(); comment.CommentText = "It fails!"; comment.PartitionKey = "TEST"; comment.RowKey = "TEST123"; comment.About = sow1; comment.From = person1; Works: var comment = new Comment(); comment.CommentText = "It works!"; comment.PartitionKey = "TEST"; comment.RowKey = "TEST123"; //comment.About = sow1; comment.From = person1; Thanks!

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• static variable lose its value

  - by user542719

  I have helper class with this static variable that is used for passing data between two classes. public class Helper{ public static String paramDriveMod;//this is the static variable in first calss } this variable is used in following second class mathod public void USB_HandleMessage(char []USB_RXBuffer){ int type=USB_RXBuffer[2]; MESSAGES ms=MESSAGES.values()[type]; switch(ms) { case READ_PARAMETER_VALUE: // read parameter values switch(prm){ case PARAMETER_DRIVE_MODE: // paramet drive mode Helper.paramDriveMod =(Integer.toString(((USB_RXBuffer[4]<< 8)&0xff00))); System.out.println(Helper.paramDriveMod+"drive mode is selectd ");//here it shows the value that I need. ..........}}//let say end switch and method and the following is an third class method use the above class method public void buttonSwitch(int value) throws InterruptedException{ boolean bool=true; int c=0; int delay=(int) Math.random(); while(bool){ int param=3; PARAMETERS prm=PARAMETERS.values()[param]; switch(value){ case 0: value=1; while(c<5){ Thread.sleep(delay); protocol.onSending(3,prm.PARAMETER_DRIVE_MODE.ordinal(),dataToRead,dataToRead.length);//read drive mode System.out.println(Helper.paramDriveMod+" drive mode is ..........in wile loop");//here it shows null value }}//let say end switch and method what is the reason that this variable lose its value?

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• change value after ajax request!

  - by Lina

  if i have 3 html pages as follows: home.html: <form method="get"> <input class="someForm" type="radio" value="1" name="someForm" /> Name <input class="someForm" type="radio" value="2" name="someForm" /> Email <div id="container"></div> <input type="submit" /> </form> <script type="text/javascript" src="jquery.js"></script> <script> var ajaxResponse = new Object(); $(document).ready(function () { $('.someForm').click(function () { var rbVal = $(this).val(); var myContent; if (ajaxResponse[rbVal]) { //in cache myContent = ajaxResponse[rbVal]; $("#container").html(myContent); } else { // not in cache var urlForAjaxCall = "file" + rbVal + ".html"; $.get(urlForAjaxCall, function (myContent) { ajaxResponse[rbVal] = myContent; $("#container").html(myContent); }); } }); }); </script> file1.html: Name: <input type="text" name="1" value="myName" /> file2.html: Email: <input type="text" name="2" value="[email protected]" /> what i want to do is that when i write something in one of the textboxes and then click whichever radio button in home.html, the value attribute should be changed to the new value, any idea on how to do that? tia

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• .NET - Unable to get values from Value property of HtmlInputHidden

  - by user245123

  I have a custom control that inherits from .NET's CompositeControl class. This control overrides the CreateChildControls in order to build its child controls dynamically. I need the page to post back after a couple different javascript events occur on the client side. In order to accomplish this, I create two hidden controls on the page so I can set their values with javascript, submit the page, and read the values out on server side. Here's is the code I use to create these two hiddens: Protected Overrides Sub CreateChildControls() hdEventName = New HiddenField() Controls.Add(hdEventName) hdEventName.ID = "hdEventName" hdEventArgs = New HiddenField() Controls.Add(hdEventArgs) hdEventArgs.ID = "hdEventValue" ' other controls ' ... End Sub When a javascript event occurs I set the value attribute of the two hiddens and submit the page, like so: hdEventName.value = 'EventName'; hdEventArgs.value = 'arg1,arg2'; document.forms[0].submit(); In the OnLoad method of my control, I attempt to check the Value property of the hdEventName and hdEventArgs controls, but it is always empty. However, Page.Request.Form(hdEventName.UniqueID) and Page.Request.Form(hdEventArgs.UniqueID) return correct values. The actual HTML in the markup also shows correct values after the page posts back. Why is the Value property of the HtmlInputHiddens disconnected from the actual value that appears on the client?

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• Display the value of a select list without a button

  - by Max Zeygelshefer

  How can I get the value to be displayed after the selection from the list is made, without the use of a button. I tried to implement an onChange event for the select list, and doing away with the button, but I can't get it to work. I'd like the value (1,2,3) to display below the select box after an option (a,b,c) is selected. <script> function displayResult() { this.nextSibling.nodeValue = document.getElementById("mySelect").value; } </script> <body> <form> <select id="mySelect" style="width:220px"> <option value="1">a</option> <option value="2">b</option> <option value="3">c</option> </select> </form> <button type="button" onclick="displayResult.call(this)">List Locations</button>

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• Java How to find a value in a linked list iteratively and recursively

  - by Roxy

  Hi I have a method that has a reference to a linked list and a int value. So, this method would count and return how often the value happens in the linked list. So, I decided to make a class, public class ListNode{ public ListNode (int v, ListNode n) {value = v; next = n;) public int value; public ListNode next; } Then, the method would start with a public static int findValue(ListNode x, int valueToCount){ // so would I do it like this?? I don't know how to find the value, // like do I check it? for (int i =0; i< x.length ;i++){ valueToCount += valueToCount; } So, I CHANGED this part, If I did this recursively, then I would have public static int findValue(ListNode x, int valueToCount) { if (x.next != null && x.value == valueToCount { return 1 + findValue(x, valueToCount);} else return new findvalue(x, valueToCount); SO, is the recursive part correct now?

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• Change $mailTo variable based on select input value (array)

  - by Dirty Bird Design

  I have the following select list: <form action="mail.php" method="POST"> <select name="foo" id="foo"> <option value="sales">Sales</option> <option value="salesAssist">Sales Assist</option> <option value="billing">Billing</option> <option value="billingAssist">Billing Assist</option> </select> </form> I need to route the $mailTo variable depending on which option they select, Sales and Sales Assist go to [email protected], while Billing and Billing Assist go to [email protected] PHP pseudeo code! <? php $_POST['foo'] if inArray(sales, salesAssist) foo="[email protected]"; else if inArray(billing, billingAssist) foo="[email protected]"; mailTo="foo" ?> I know there is nothing correct about the above, but you can see what I am trying to do, change a variable's value based on the selected value. I don't want to do this with JS, would rather learn more PHP here. Thank you.

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• Grouping by property value and writing group members

  - by Will S

  I need to group the following list by the department value but am having trouble with the LINQ syntax. Here's my list of objects: var people = new List<Person> { new Person { name = "John", department = new List<fields> {new fields { name = "department", value = "IT"}}}, new Person { name = "Sally", department = new List<fields> {new fields { name = "department", value = "IT"}}}, new Person { name = "Bob", department = new List<fields> {new fields { name = "department", value = "Finance"}}}, new Person { name = "Wanda", department = new List<fields> {new fields { name = "department", value = "Finance"}}}, }; I've toyed around with grouping. This is as far as I've got: var query = from p in people from field in p.department where field.name == "department" group p by field.value into departments select new { Department = departments.Key, Name = departments }; So can iterate over the groups, but not sure how to list the Person names - foreach (var department in query) { Console.WriteLine("Department: {0}", department.Department); foreach (var foo in department.Department) { // ?? } } Any ideas on what to do better or how to list the names of the relevant departments?

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• Setting XFCE terminal PS1 value and making it permanent

  - by Matt

  I'm trying to add the value PS1='\u@\h: \w\$ ' to my terminal in XFCE. I added the line to (what I think is) the correct area in /etc/profile. The relevant segment is: # Set a default shell prompt: #PS1='`hostname`:`pwd`# ' PS1='\u@\h: \w\$ ' if [ "$SHELL" = "/bin/pdksh" ]; then # PS1='! $ ' PS1='\u@\h: \w\$ ' elif [ "$SHELL" = "/bin/ksh" ]; then # PS1='! ${PWD/#$HOME/~}$ ' PS1='\u@\h: \w\$ ' elif [ "$SHELL" = "/bin/zsh" ]; then # PS1='%n@%m:%~%# ' PS1='\u@\h: \w\$ ' elif [ "$SHELL" = "/bin/ash" ]; then # PS1='$ ' PS1='\u@\h: \w\$ ' else PS1='\u@\h: \w\$ ' fi Most of that was already there, I just commented out the existing value and added the one I want. By manually opening the terminal and doing . profile, I can load these values, but they don't stick - I close the terminal and reopen, and I'm back to sh-4.1$. Maybe I'm doing this in the wrong place, but how can I make that value stick? All the info I've found on google is Fedora/Ubuntu-specific. I use Slackware. Any help on this matter would be greatly appreciated.

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• Modifying value of "Rating" column within Explorer for arbitrary file types

  - by Fake Name

  Basically, I have a large body of assorted media (text, images, flash files, archives, folders, etc...) and I'm attempting to organize it. Windows Explorer has a rating column, but there seems to be no way to modify the rating of the files short of opening them in their type-specific software (e.g. Media player, or Photo viewer). However, this does not work when the file is of an unsupported type (.rar, .swf ...), or a directory. I'd be more than willing to consider a file-manager replacement (I've alreadly looked at quite a few, Directory Opus, Total Commander, etc...), or even a solution that stores the rating metadata in a hidden file in each folder, or a separate database. The one real critical requirement is the ability to sort by rating, and being filetype-agnostic. Basically, is there any way to categorize a large collection of assorted files by rating that will work with any file type, including directories? - Ideally, there would be an easy way to add arbitrary columns to windows explorer, and edit them directly. However, there seems to be no way to do this. The rating column is the next best thing.

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• Customer Attribute, not sorting select options

  - by Bosworth99

  Made a module that creates some customer EAV attributes. One of these attributes is a Select, and I'm dropping a bunch of options into their respective tables. Everything lines up and is accessible on both the front end and the back. Last thing before calling this part of things finished is the sort order of the options. They come out all scrambled, instead of the obvious default or alphabetical (seemingly at random... very wierd). I'm on Mage v1.11 (Pro/Enterprise). config.xml <config> <modules> <WACI_CustomerAttr> <version>0.1.0</version> </WACI_CustomerAttr> </modules> <global> <resources> <customerattr_setup> <setup> <module>WACI_CustomerAttr</module> <class>Mage_Customer_Model_Entity_Setup</class> </setup> <connection> <use>core_setup</use> </connection> </customerattr_setup> </resources> <models> <WACI_CustomerAttr> <class>WACI_CustomerAttr_Model</class> </WACI_CustomerAttr> </models> <fieldsets> <customer_account> <agency><create>1</create><update>1</update></agency> <title><create>1</create><update>1</update></title> <phone><create>1</create><update>1</update></phone> <mailing_address><create>1</create><update>1</update></mailing_address> <city><create>1</create><update>1</update></city> <state><create>1</create><update>1</update></state> <zip><create>1</create><update>1</update></zip> <fed_id><create>1</create><update>1</update></fed_id> <ubi><create>1</create><update>1</update></ubi> </customer_account> </fieldsets> </global> </config> mysql4-install-0.1.0.php <?php Mage::log('Installing WACI_CustomerAttr'); echo 'Running Upgrade: '.get_class($this)."\n <br /> \n"; //die ( 'its running' ); $installer = $this; /* @var $installer Mage_Customer_Model_Entity_Setup */ $installer->startSetup(); // bunch of attributes // State $installer->addAttribute('customer','state', array( 'type' => 'varchar', 'group' => 'Default', 'label' => 'State', 'input' => 'select', 'default' => 'Washington', 'source' => 'WACI_CustomerAttr/customer_attribute_data_select', 'global' => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE, 'required' => true, 'visible' => true, 'user_defined' => 1, 'position' => 67 ) ); $attrS = Mage::getSingleton('eav/config')->getAttribute('customer', 'state'); $attrS->addData(array('sort_order'=>67)); $attrS->setData('used_in_forms', array('adminhtml_customer','customer_account_edit','customer_account_create'))->save(); $state_list = array('Alabama','Alaska','Arizona','Arkansas','California','Colorado','Connecticut','Delaware','Florida','Georgia', 'Hawaii','Idaho','Illinois','Indiana','Iowa','Kansas','Kentucky','Louisiana','Maine','Maryland','Massachusetts','Michigan', 'Minnesota','Mississippi','Missouri','Montana','Nebraska','Nevada','New Hampshire','New Jersey','New Mexico','New York', 'North Carolina','North Dakota','Ohio','Oklahoma','Oregon','Pennsylvania','Rhode Island','South Carolina','South Dakota', 'Tennessee','Texas','Utah','Vermont','Virginia','Washington','West Virginia','Wisconsin','Wyoming'); $aOption = array(); $aOption['attribute_id'] = $installer->getAttributeId('customer', 'state'); for($iCount=0;$iCount<sizeof($state_list);$iCount++){ $aOption['value']['option'.$iCount][0] = $state_list[$iCount]; } $installer->addAttributeOption($aOption); // a few more $installer->endSetup(); app/code/local/WACI/CustomerAttr/Model/Customer/Attribute/Data/Select.php <?php class WACI_CustomerAttr_Model_Customer_Attribute_Data_Select extends Mage_Eav_Model_Entity_Attribute_Source_Abstract{ function getAllOptions(){ if (is_null($this->_options)) { $this->_options = Mage::getResourceModel('eav/entity_attribute_option_collection') ->setAttributeFilter($this->getAttribute()->getId()) ->setStoreFilter($this->getAttribute()->getStoreId()) ->setPositionOrder('asc') ->load() ->toOptionArray(); } $options = $this->_options; return $options; } } theme/variation/template/persistent/customer/form/register.phtml <li> <?php $attribute = Mage::getModel('eav/config')->getAttribute('customer','state'); ?> <label for="state" class="<?php if($attribute->getIsRequired() == true){?>required<?php } ?>"><?php if($attribute->getIsRequired() == true){?><em>*</em><?php } ?><?php echo $this->__('State') ?></label> <div class="input-box"> <select name="state" id="state" class="<?php if($attribute->getIsRequired() == true){?>required-entry<?php } ?>"> <?php $options = $attribute->getSource()->getAllOptions(); foreach($options as $option){ ?> <option value='<?php echo $option['value']?>' <?php if($this->getFormData()->getState() == $option['value']){ echo 'selected="selected"';}?>><?php echo $this->__($option['label'])?></option> <?php } ?> </select> </div> </li> All options are getting loaded into table eav_attribute_option just fine (albeit without a sort_order defined), as well as table eav_attribute_option_value. In the adminhtml / customer-manage customers-account information this select is showing up fine (but its delivered automatically by the system). Seems I should be able to set the sort-order on creation of the attributeOptions, or, certainly, define the sort order in the data/select class. But nothing I've tried works. I'd rather not do a front-end hack either... Oh, and how do I set the default value of this select? (Different question, I know, but related). Setting the attributes 'default' = 'washington' seems to do nothing. There seem to be a lot of ways to set up attribute select options like this. Is there a better way that the one I've outlined here? Perhaps I'm messing something up. Cheers

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• How to get attribute value using SelectSingleNode?

  - by Nano HE

  I am parsing a xml document, I need find out the gid (an attribute) value (3810). Based on SelectSingleNode(). I found it is not easy to find the attribute name and it's value. Can I use this method or I must switch to other way. Attached my code. How can I use book obj to get the attribute value3810 for gid. Thank you. My test.xml file as below <?xml version="1.0" ?> <root> <VersionInfo date="2007-11-28" version="1.0.0.2" /> <Attributes> <AttrDir name="EFEM" DirID="1"> <AttrDir name="Aligner" DirID="2"> <AttrDir name="SequenceID" DirID="3"> <AttrObj text="Slot01" gid="3810" unit="" scale="1" /> <AttrObjCount value="1" /> </AttrDir> </AttrDir> </AttrDir> </Attributes> </root> I wrote the test.cs as below public class Sample { public static void Main() { XmlDocument doc = new XmlDocument(); doc.Load("test.xml"); XmlNode book; XmlNode root = doc.DocumentElement; book = root.SelectSingleNode("Attributes[AttrDir[@name='EFEM']/AttrDir[@name='Aligner']/AttrDir[@name='SequenceID']/AttrObj[@text='Slot01']]"); Console.WriteLine("Display the modified XML document...."); doc.Save(Console.Out); } } [Update 06/10/2010] The xml file is a complex file. Included thousands of gids. But for each of Xpath, the gid is unique. I load the xml file to a TreeView control. this.treeView1.AfterSelect += new System.Windows.Forms.TreeViewEventHandler(this.treeView1_AfterSelect);. When treeView1_AfterSelect event occurred, the e.Node.FullPath will return as a String Value. I parse the string Value e.Node.FullPath. Then I got the member of XPath Above. Then I tried to find which gid item was selected. I need find the gid value as a return value indeed.

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• Set a default iteration path for a work item type on TFS

  - by Olivier PAYEN

  Hi, I try to tune my Team Foundation 2005 work items. We have 5 iterations paths in the "Bug" work item type. I would like it to default to a specific value, for example Iterations.Iteration2 I tried to add a DEFAULT rule in the work item type editor but couldn't set the iteration path. How can I do that?

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• Finding a ProjectItem by type name via DTE

  - by hmemcpy

  Given a type name, is it possible to use DTE to find the ProjectItem that the type is located in? Something similar to how the Navigate To... dialog works in Visual Studio 2010. The closest I could find is Solution.FindProjectItem, but that takes in a file name. Thanks!

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• Determining exception type after the exception is caught?

  - by Brian R. Bondy

  Is there a way to determine the exception type even know you caught the exception with a catch all? Example: try { SomeBigFunction(); } catch(...) { //Determine exception type here }

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• MySQL field type for a comments field or text area

  - by Derek

  As the title says, I'm after a good field type for a comments field I have in a table. It will store many characters (as users can continuously add to it) so it's definitely over 255. I looked at longtext but wasn't sure...Also how do I change the field type to accept different characters such as apostrophies. Thanks.

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