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  • Special case when calling InvokeScript with the winforms WebBrowser control does not work

    - by wang-min
    I am trying to use InvokeScript method on the WebBrowser control to execute a script on the web page that has been loaded into my WebBrowser control. If I am calling just a simple javascript function, this works properly. However, the javascript function that I am trying to call is nested within a variable like this: var holder = { DoA: function() { .... }, DoB: function() { ..... } } Calling holder.DoA works fine when called from within the javascript, but the function is not called successfully when I try to call it from within my C# code like this: object obj1 = m_webBrowser.Document.InvokeScript("holder.DoA"); Any ideas?

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  • How does Unity.Resolve know which constructor to use?

    - by stiank81
    Given a class with several constructors - how can I tell Resolve which constructor to use? Consider the following example class: public class Foo { public Foo() { } public Foo(IBar bar) { Bar = bar; } public Foo(string name, IBar bar) { Bar = bar; Name = name; } public IBar Bar { get; set; } public string Name { get; set; } } If I want to create an object of type Foo using Resolve how will Resolve know which constructor to use? And how can I tell it to use the right one? Let's say I have a container with an IBar registered - will it understand that it should favor the constructor taking IBar? And if I specify a string too - will it use the (string, IBar) constructor? Foo foo = unityContainer.Resolve<Foo>(); And please ignore the fact that it would probably be easier if the class just had a single constructor...

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  • How to create DSN for SQL Server using C# ?

    - by Pavan Kumar
    using Microsoft.Win32; using System.Runtime.InteropServices; [DllImport("ODBCCP32.dll")] private static extern bool SQLConfigDataSource(IntPtr parent, int request, string driver, string attributes); private void btnDsn_Click(object sender, EventArgs e) { string str = "SERVER=MYDBSERVER\0DSN=MYDSN\0DESCRIPTION=MYDSNDESC\0DATABASE=master\0TRUSTED_CONNECTION=YES"; SQLConfigDataSource((IntPtr)0, 4, "SQL Server ",str); } Reference : http://social.msdn.microsoft.com/Forums/en-US/vscrystalreports/thread/441811b9-c4e9-4d15-97a3-7b92d2c9f318 Can anybody help me remove the following errors?? Error 1 Expected class, delegate, enum, interface, or struct C:\Documents and Settings\Pavan\My Documents\Visual Studio 2008\Projects\CopyDatabase\CopyDatabase\Synchronize.cs 17 23 CopyDatabase Error 2 The name 'SQLConfigDataSource' does not exist in the current context C:\Documents and Settings\Pavan\My Documents\Visual Studio 2008\Projects\CopyDatabase\CopyDatabase\Synchronize.cs 67 13 CopyDatabase

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  • Problem creating site using Microsoft Visual Web Developer Express 2008

    - by Peter
    Hi, this is a very newbie question, sorry! I need to create an aspx website based con C# and am calling some webservices based on some DLL's I already have. Beforem purchasing Visual Studio, I decided to try Microsoft Visual Web Developer Express (is this ok?) creating a Web Application ASP.NET based on Visual C#. I created the form to enter the data which is submitted when clicking the process button. At this point I need to call stuff from the DLL, which I have added in the Solution Explorer via Add Reference, selecting the DLL from the COM list. But whenever I run the project, I always get the error "the type or namespace xxx cannot be found - maybe a using directive or assembler directive is missing" when trying to create the object. What is my stupid mistake? Thanks!

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  • ListView not importing data

    - by ct2k7
    Hello, I'm trying to import data into a listview and this is the code I'm using: Private Sub form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim doc As New XmlDocument doc.Load("http://user:[email protected]/1/statuses/mentions.rss") Dim nodes As XmlNodeList = doc.SelectNodes("Statuses/Status") For Each node As XmlNode In nodes Dim text As String = node.SelectSingleNode("text").InnerText Dim time As String = node.SelectSingleNode("created_at").InnerText Dim screen_name As String = node.SelectSingleNode("user/screen_name").InnerText ListView1.Items.Add(New ListViewItem(New String() {screen_name, text, time})) Next End Sub Any ideas what's going wrong here? User and password are correct.

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  • How to read formatted input in python?

    - by eSKay
    I want to read from stdin five numbers entered as follows: 3, 4, 5, 1, 8 into seperate variables a,b,c,d & e. How do I do this in python? I tried this: import string a=input() b=a.split(', ') for two integers, but it does not work. I get: Traceback (most recent call last): File "C:\Users\Desktop\comb.py", line 3, in <module> b=a.split(', ') AttributeError: 'tuple' object has no attribute 'split' How to do this? and suppose I have not a fixed but a variable number n integers. Then?

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  • Checking to see if a generic class is inherited from an interface

    - by SnOrfus
    I've got a class that inherits from an interface. That interface defines an event that I'd like to subscribe to in the calling code. I've tried a couple of things, but they all resolve to false (where I know it's true). How can I check to see if a class implements a specific interface. Here's what I've tried (note, the object in question is a usercontrol that implements MyInterface, stored in an array of controls, only some of which implement MyInterface - it is not null): if (this.controls[index].GetType().IsSubclassOf(typeof(MyInterface))) ((MyInterface)this.controls[index]).Event += this.Handler; if (this.controls[index].GetType().IsAssignableFrom(typeof(MyInterface))) ((MyInterface)this.controls[index]).Event += this.Handler; if (this.controls[index].GetType() == typeof(MyInterface)) ((MyInterface)this.controls[index]).Event += this.Handler; All to no avail.

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  • [Cocoa] CoreData bindings for NSPopupButton

    - by ndg
    I'm looking to use a dropdown menu (possibly an NSPopupButton object) to represent the hierarchical results of two Core Data entities (Genre and Movie) and their relationships. In my current data model, my Genre entity has a one-to-many relationship with my Movie entity. What I'm now looking to do is generate the contents of an NSPopupButton to show a hierarchical list of Genres and the Movies associated with them, like so: Genre 1 Film 1 Film 2 Genre 2 Film 3 Film 4 Note that, in the above example, only Movie objects are to be selectable by the user (Genre objects will appear, but be unselectable). Also, to complicate matters slightly, I have an additional NSPopupButton which lists Movie Rental locations. The location selected by the user ultimately impacts on the genres and films available in the second dropdown. I imagine that bindings will only take me so far with this problem and that, ultimately, I'll have to populate the contents of the dropdown menu myself. I'm posting here for thoughts and opinions on the best way to go about this.

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  • Grails / GORM, read-only cache and transient fields

    - by Stephen Swensen
    Suppose I have the following Domain object mapping to a legacy table, utilizing read-only second-level cache, and having a transient field: class DomainObject { static def transients = ['userId'] Long id Long userId static mapping = { cache usage: 'read-only' table 'SOME_TABLE' } } I have a problem, references to DomainObject instances seem to be shared due to the caching, and thus transient fields are writing over each other. For example, def r1 = DomainObject.get(1) r1.userId = 22 def r2 = DomainObject.get(1) r2.userId = 34 assert r1.userId == 34 That is, r1 and r2 are references to the same instance. This is undesirable, I would like to cache the table data without sharing references. Any ideas?

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  • missing event when using modules with requirejs

    - by ali haider
    I had javascript code in a single JS file that was working fine (using XHR/AJAX). When I split it up into separate modules in a requirejs application, I do not seem to get a handle on the event object & it shows up as undefined (testing in firefox 29.0.1). Calling module: ajax.onreadystatechange = new ajaxResponse().handleAjaxResponse(e); ajaxResponse define(["require", './url/urlCommon'], function(require, urlCommon) { 'use strict'; var ajaxResponse = function() { var ajax = null; // e = event || window.event; this.handleAjaxResponse = function() { if (typeof event === 'undefined') { var event = event || window.event; } console.log('e is now:' + typeof e); I also do not have a handle on the event in the handleAjaxResponse method (error: undefined). Any thoughts on what I need to do to troubleshoot/fix this will be greatly appreciated.

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  • Why does a newly created EF-entity throw an ID is null exception when trying to save?

    - by Richard
    I´m trying out entity framework included in VS2010 but ´ve hit a problem with my database/model generated from the graphical interface. When I do: user = dataset.UserSet.CreateObject(); user.Id = Guid.NewGuid(); dataset.UserSet.AddObject(user); dataset.SaveChanges(); {"Cannot insert the value NULL into column 'Id', table 'BarSoc2.dbo.UserSet'; column does not allow nulls. INSERT fails.\r\nThe statement has been terminated."} The table i´m inserting into looks like so: -- Creating table 'UserSet' CREATE TABLE [dbo].[UserSet] ( [Id] uniqueidentifier NOT NULL, [Name] nvarchar(max) NOT NULL, [Username] nvarchar(max) NOT NULL, [Password] nvarchar(max) NOT NULL ); GO -- Creating primary key on [Id] in table 'UserSet' ALTER TABLE [dbo].[UserSet] ADD CONSTRAINT [PK_UserSet] PRIMARY KEY CLUSTERED ([Id] ASC); GO Am I creating the object in the wrong way or doing something else basic wrong?

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  • ASP.NET VB.NET GridView adding anchor tag to a cell

    - by user3036965
    I have an GridView control with some data in the first cell throughout the column. Ineed to make that cell data into a hyperlink (anchor tag) like the following. <a href=""myPage.aspx?r=" & strParam & """>" & strData & "</a>" Can anyone advise on the most effective way to do this? I am using a datatable and then assigning the datatable to the gridview. Any advice would be greatly appreciated. I need to use the Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs). So I could add a hyperlink whatabout getting the parameters into the RowDataBound event is where my skills are falling down. Thank you

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  • RowsDeleting event doesn't fire

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

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  • Adding dynamic links using NavigateURL on ASP.NET (VB)

    - by AZIRAR
    Hello, I Have this code in my page, and I want that every NavigateUrl display another page like : simple.aspx?id=1, simple.aspx?id=2, ... Where id = c Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Dim c As Integer = 0 While c < 5 Dim Label1 As New Label() Dim ltr As New Literal() Dim link As New HyperLink() link.NavigateUrl = "simple.aspx" link.BackColor = Drawing.Color.Aqua Label1.Text = c.ToString() ltr.Text = "<br/>" PlaceHolder1.Controls.Add(Label1) PlaceHolder1.Controls.Add(link) PlaceHolder1.Controls.Add(ltr) c += 1 End While End Sub Thanks.

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  • Explicit return from a Ruby method - implementation hiding, reuse and optimisations.

    - by Chris McCauley
    Hi, Rather than allowing a Ruby method to blindly return the last statement evaluated, is there any advantage to returning nil explicitly? In terms of implementation hiding and reuse, it seems dangerous to blindly allow the last expression evaluated to be returned - isn't there a danger that a user will rely on this only to get a nasty surprise when the implementation is modified? Surely returning nil would be better unless an explicit return value was given. Following on, is there an optimisation that Ruby can make when the return is a simple type rather than a reference to a more complex object? Chris

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  • jQuery event handlers always execute in order they were bound - any way around this?

    - by asgeo1
    It can be anoying that jQuery event handlers always execute in the order they were bound. For example: $('span').click(doStuff1()); $('span').click(doStuff2()); clicking on the span will cause doStuff1() to fire, followed by doStuff2(). At the time I bind doStuff2(), I would like the option to bind it before doStuff1(), but there doesn't appear to be any easy way to do this. I suppose most people would say, just write the code like this: $('span').click(function (){ doStuff2(); doStuff1(); }); But this is just a simple example - in practise it is not always convienient to do that. There are situations when you want to bind an event, and the object you are binding to already has events. And in this case you may simply want the new event to fire before any other existing events. So what is the best way to achieve this in jQuery?

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  • Ruby IRB - Requires and Scope

    - by tyndall
    Trying to understand this problem I'm running into. I create file welcome.rb. The contents of this file: welcome_message = "hi there" I then launch an irb session. And type require 'welcome'. That works fine. Then I type: puts welcome_message I get the error message undefined local variable or method `welcome_message' for main:Object What is the best way to bring in predefined variables and have initialization work done when you require something into your irb session. Global variables didn't seem like the right path.

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  • NSArrays in NSArrays. A pointer problem?

    - by RyJ
    I believe my problem involves pointers, a concept I often struggle with, but here's what I'm trying to do. I have six NSArrays. I want an additional NSArray comprised of these six arrays, so: self.arr1 = [NSArray array]; self.arr2 = [NSArray array]; self.arr3 = [NSArray array]; self.arr4 = [NSArray array]; self.arr5 = [NSArray array]; self.arr6 = [NSArray array]; NSArray *containerArray = [[NSArray alloc] initWithObjects:self.arr1, ... etc, nil]; Whenever I update one of the first 6 NSArrays, I want the object updated in containerArray. (I know I'm using an NSArray and not an NSMutableArray, when I update the arrays I create a new one and assign it to the instance variable). Currently, any manipulation of arr1 is not reflected in [containerArray objectAtIndex:0].

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  • COMPLETE list of HTML tag attributes which have a URL value?

    - by system PAUSE
    Besides the following, are there any HTML tag attributes that have a URL as their value? href attribute on tags: <link>, <a>, <area> src attribute on tags: <img>, <iframe>, <frame>, <embed>, <script>, <input> action attribute on tags: <form> data attribute on tags: <object> Looking for tags in wide usage, including non-standard tags and old browsers as well as HTML 4.01, HTML 5, and XHTML. Yes this question is kinda lightweight, but I googled around for about 45 minutes and didn't find this data centralized anywhere, so I figure it might help some other developer to have it here. Plus I'm sure I'm missing something. Feel free to repeat/reorganize this list in your answer. Upvoting the most complete answers will probably be most helpful to others.

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  • How to filter rows in JTable based on boolean valued columns?

    - by vinny
    Im trying to filter rows based on a column say c1 that contains boolean values. I want to show only rows that have 'true' in c1. I looked up the examples in http://java.sun.com/docs/books/tutorial/uiswing/components/table.html#sorting. The example uses a regex filter. Is there any way I can use boolean values to filter rows? Following is the code Im using (borrowed from the example) private void filter(boolean show) { RowFilter<TableModel, Object> filter = null; TableModel model = jTb.getModel(); boolean value = (Boolean) model.getValueAt(0,1); //If current expression doesn't parse, don't update. try { // I need to used 'value' to filter instead of filterText. filter =RowFilter.regexFilter(filterText, 0); } catch (java.util.regex.PatternSyntaxException e) { return; } sorter.setRowFilter(filter); } thank you.

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  • typedef of a template with a template type as its parameter

    - by bryan sammon
    Im having a problem with a typedef below, I can seem to get it right: template <typename T> struct myclass1 { static const int member1 = T::GetSomeInt(); }; template <int I> struct myclass2 { typedef myclass1< myclass2<I> > anotherclass; static int GetSomeInt(); }; anotherclass MyObj1; // ERROR here not instantiating the class When I try and initialize a anotherclass object, it gives me an error. Any idea what I am doing wrong? There seems to be a problem with my typedef. Any help is appreciated, Thanks Bryan

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  • choose a tool to create/maintain custom eclipse distrib

    - by raticulin
    I would like to settle on a tool to create/maintain my custom eclipse distrib (starting with next 3.6). By studying previous questions main contenders seem: Pulse Yoxos doing it yourself in eclipse Has anyone experiences in several of them and can comment on advantages etc?? My wishes are: by 'distrib' I mean: plugins, settings & preferences... be able to use the same eclipse setup in several workstations MAYBE sharing with other members of the team works across 3.5 and next 3.6: I don't know if it's possible. And anyway I would not object to customize the distrib once per new eclipse major release

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  • How to parse AMF data in Ruby?

    - by Matchu
    So I see that there are a few Rails plugins for serving AMF. However, is there a library that I can use in a Ruby environment to act as an AMF client: to read AMF data, and deserialize it into a Ruby object? If not, how could I best go about using tools built in other languages? I suppose I could write something in Python or Java or whatever, and call it from Ruby directly via backticks... but I'd first like to ensure that there isn't really any better option. Thanks!

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  • [WPF C#]Get UserControl or VisualTree in DataValidation of TextBlock

    - by dalind
    Hy, I have a validator set on the text property of a textblock. For a correct validation I would need the parent usercontrol of the textblock, but the only things I have in the validator are the value object (a string) and the culture (doesn't help either). Does anyone know a way to get certain usercontrols in a class/a method where I have no access to any kind of visual or control of my application. The problem could be solve if I could give the validator the usercontrol or the textblock as parameters, but I didn't find a way to do so.. Thank you very much for your answers. Greets

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  • [Django] Automatically Update Field when a Different Field is Changed

    - by Gordon
    I have a model with a bunch of different fields like first_name, last_name, etc. I also have fields first_name_ud, last_name_ud, etc. that correspond to the last updated date for the related fields (i.e. when first_name is modified, then first_name_ud is set to the current date). Is there a way to make this happen automatically or do I need to check what fields have changed each time I save an object and then update the related "_ud" fields. Thanks a lot!

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