Search Results

Search found 25852 results on 1035 pages for 'linq query syntax'.

Page 712/1035 | < Previous Page | 708 709 710 711 712 713 714 715 716 717 718 719  | Next Page >

  • Best way to reverse a string in C# 2.0

    - by Guy
    I've just had to write a string reverse function in C# 2.0 (i.e. LINQ not available) and came up with this: public string Reverse(string text) { char[] cArray = text.ToCharArray(); string reverse = String.Empty; for (int i = cArray.Length - 1; i > -1; i--) { reverse += cArray[i]; } return reverse; } Personally I'm not crazy about the function and am convinced that there's a better way to do it. Is there?

    Read the article

  • Learn C++ after learning C#

    - by RichK
    I'm developing a library in C# at the moment and recently bought a great book to help me out but the code snippets are in C++. Does anyone have a link to a site/PDF that'll give me a crash course in C++? (mainly the syntax rather than pros/cons etc) because I'll be developing in C# but things like -, ::, &, **, are giving me the shivers. Obviously the languages aren't 100% compatible but if I know what the C++ is doing from a 'theoretical' point of view I can make a stab at rewriting it in C#. I've had a Google to find the answer but all the sites seem to be "Should I use C++ or C#?", which isn't any good to me. Thanks in advance.

    Read the article

  • SQL Server PIVOT on key-value table

    - by Zenox
    I have a table that has attributes based on a key-value. Example: CREATE TABLE ObjectAttributes ( int objectId, key nvarchar(64), value nvarchar(512) ) When I select from this I get: objectId key value ---------------------------- 1 Key 1 Value 1 1 Key 2 Value 2 I was wondering if I could use the PIVOT syntax to turn this into: objectId Key 1 Key 2 --------------------------- 1 Value 1 Value 2 I know all of my tables will have the same keys. (Unfortunately I cannot easily change the table structure. This is what is leading me to attempt using PIVOTS). The big issue here though is that pivots require an aggression function to be used. Is there a way to avert this? Am I completely wrong attempting this? Or is there a better solution?

    Read the article

  • How do I use a graphics method to pass parameters? Example is below.

    - by sonny5
    private static void getCorners(out float Wx, out float Wy, out float Vx, out float Vy) { // note-- I don't know how to flip the Y axis using this method... this is not a "graphics" method // In other words, I should use something like: // flipY(object sender, System.EventArgs e); // but don't know the syntax or whatever // I tried to do this: //Graphics g = this.CreateGraphic //Matrix myMatrix2 = new Matrix(1, 0, 0, -1, 0, 0); // flip Y axis //g.Transform = myMatrix2; //g.TranslateTransform(0, 480, MatrixOrder.Append); // ...but I get the error: // error CS0026: Keyword 'this' is not valid in a static property, static method, or // static field initializer Wx = 1.00F; Wy = 1.00F; // make this 1.00 (not 3.00F) down from the TOP since cannot get Y flipped Vx = ((Wx- WXmin)*((VXmax-VXmin)+VXmin)/(WXmax-WXmin)); Vy = ((Wy-WYmin)*(VYmax-VYmin)/(WYmax-WYmin)+VYmin); } thanks, Sonny5

    Read the article

  • Input Sanitation Best Practices

    - by Adam Driscoll
    Our team has recently been working on a logic and data layer for our database. We were not approved to utilize Entity or Linq to SQL for the data layer. It was primarily built by hand. A lot of the SQL is auto generated. An obvious down fall of this is the need to sanitize inputs prior to retrieval and insertion. What are the best methods for doing this? Searching for terms like insert, delete, etc seems like a poor way to accomplish this. Is there a better alternative?

    Read the article

  • How to get tag parameter value with XQuery

    - by uni
    For example i have this xml. I need to get value of parameter val of tag foo with id="two" <top> <sub id="one"> <foo id="two" val="bar" /> sometext </sub> </top> Whis this query (using Qt QXmlQuery): doc('test.xml')/top/sub[@id='one']/foo[@id='two']/<p>{@val}</p> I receive <p val="bar"/>, but I need only text "bar" without any tags. I tried to remove <p> and </p> and receive syntax error, unexpected { How can i get parameter value without any tags?

    Read the article

  • Does Adding more namespace in the code file affect performace ?

    - by Harikrishna
    If we imports more namespace in the code file(cs file) then it affects on perfomance ? Like we should add namespace in the cs file as needed. That is adding more namespace in the cs file affects performance ? Like using System; using System.Data.Sql; using System.Collections.Generic; using System.Data; using System.IO; using System.Linq; using System.Text.RegularExpressions; using System.Windows.Forms; using System.Xml; using System.Data.SqlClient; using System.ComponentModel;

    Read the article

  • Create MVC 5 Combo Box from CRM Entities?

    - by SpaceCowboy74
    I am working on an MVC 5 App that pulls data from Dynamics CRM 5. The Data I am getting back is an IQueryable of type Account (The CRM Entity class auto generated by CrmSvcUtil). I am retrieving all of the items and can loop through them with code like this: @foreach (var item in Model.ToList()) { <tr> <td> @item.AccountId </td> <td> @Html.DisplayFor(modelItem => item.Name) </td> </tr> } The problem is, I would like to instead put them in a drop down list. I can't figure out what the syntax is to put these in a DropDown is. Any suggestions?

    Read the article

  • What does it mean when a Perl method returns a "hashref"?

    - by Uri
    I'm trying to decrypt a Perl code which I'm not familiar with, somehow related to HashRef. I'm using Amazon::S3, but my question is a general Perl question. See the code below: use Amazon::S3; my $s3 = Amazon::S3->new( ... ); my $response = $s3->buckets; Documentation (here) sais, about s3-buckets: Returns undef on error, else HASHREF of results The following line is working for me, but I don't understand why: for $b in ( @ { $response->{buckets} } ) { print "bucket: " . $b->bucket . "\n"; } I'm Puzzled by each operator on the first line. What type exactly are $response, $respone->{bucket}. Looks like the expression within the for is an array, but I don't understand this syntax: @{ ... }?

    Read the article

  • NUnit [Test] is not a valid attribute

    - by tyndall
    I've included the necessary assemblies into a Windows Class project in VS2008. When I start to try to write a test I get a red squiggle line and the message [Test] is not a valid attribute. I've used NUnit before... maybe an earlier version. What am I doing wrong? I'm on version 2.5.2. using System; using System.Collections.Generic; using System.Linq; using System.Text; using NUnit; using NUnit.Core; using NUnit.Framework; namespace AccessPoint.Web.Test { public class LoginTests { [Test] public void CanLogin() { } } }

    Read the article

  • Can return and else statements be used interchangable in CFScript?

    - by Mel
    I would like to know your opinion on using return and else statements interchangeably in CFScript. I generally use the following syntax: if (something) { // Do something } else { // Do something else } It recently occurred to me I could do this instead: if (something) { // Do something return; } // Do something else Would those two styles yield a different end result? I like not having to wrap code in an else statement. My thinking is that if the if statement evaluates true and returns, the code below it will not run. If it does not evaluate true, then the code below it will run regardless of whether it is wrapped in an else statement or not. Does that sound write?

    Read the article

  • Weird behaviour of jquery's hide/show with the 'slide' effect. How to change?

    - by Tommy
    When doing $('.mydiv').show('slide', {direction:up}, 1500); //syntax may be a little off jQuery seems to - just before starting the animation - make room for the soon to be showed div. This creates a non-smooth effect making all elements below the showed div shift away in one big go. I would like to see the elements below the div move away as the div is animated/showed. The jQuery native hide()/show() function works like this, how come the slide effect of hide/show doesn't? Anyone knows how to fix it?

    Read the article

  • C++ hook process and show status

    - by David
    Ok so I am learning C++ slowly. I am familiar with all the console syntax and everything, but now I'm moving on to windows programming. Now what im trying to do, is create a DLL that I inject into a process, so it's hooked in. All I want the C++ application to do, is have text in it, that says "Hooked" if it's successfully injected, and an error if something wrong happened. Or even if I can do it without a DLL, Just open an executable, and when the certain process I'm trying to hook is opened, the status is changed to "Hooked". Also I have a safaribooksonline.com account so if there is any good reads you would recommend, just write it down. thanks

    Read the article

  • Why does this static factory method involving implied generic types, work?

    - by Cheeso
    Consider public class Tuple<T1, T2> { public Tuple(T1 v1, T2 v2) { V1 = v1; V2 = v2; } public T1 V1 { get; set; } public T2 V2 { get; set; } } public static class Tuple { // MAGIC!! public static Tuple<T1, T2> New<T1, T2>(T1 v1, T2 v2) { return new Tuple<T1, T2>(v1, v2); } } Why does the part labeled "MAGIC" in the above work? It allows syntax like Tuple.New(1, "2") instead of new Tuple<int, string>(1, "2"), but ... how and why? Why do I not need Tuple.New<int,string>(1, "2") ??

    Read the article

  • C# - opening process and changing window position

    - by bartq
    I want to open from c# an application (standalone flashplayer) and set it position to (0,0) on the screen. How can I do this? So far I've managed to open flashplayer: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Diagnostics; namespace swflauncher { class Program { static void Main(string[] args) { Process flash = new Process(); flash.StartInfo.WindowStyle = ProcessWindowStyle.Normal; flash.StartInfo.FileName = "D:\\development\\flex4\\runtimes\\player\\10\\win\\FlashPlayer.exe"; flash.Start(); } } }

    Read the article

  • Find records produced in the last hour

    - by justSteve
    I have a smalldatetime field named myTime recording when the record was created. I need the syntax that selects records created within the last hour. thought it would be: and DATEDIFF("hh", datePart(hh, myTime), DatePart(hh, GETDATE()) < 1 where datediff 1) looks for hours; 2) looks at the hours portion of the data in myTime as starting; 3) looks at the hours portion of now for ending 3) produces an int that gets compared to '1' the results i'm getting are clearly way, way off base cuz umm...clearly...i don't know what i'm doing. help? thx

    Read the article

  • Problem in populating a dictionary object using Enumerable.Range() (C#3.0)

    - by Newbie
    If I do for (int i = 0; i < appSettings.Count; i++) { string key = appSettings.Keys[i]; euFileDictionary.Add(key, appSettings[i]); } It is working fine. When I am trying the same thing using Enumerable.Range(0, appSettings.Count).Select(i => { string Key = appSettings.Keys[i]; string Value = appSettings[i]; euFileDictionary.Add(Key, Value); }).ToDictionary<string,string>(); I am getting a compile time error The type arguments for method 'System.Linq.Enumerable.Select(System.Collections.Generic.IEnumerable, System.Func)' cannot be inferred from the usage. Try specifying the type arguments explicitly. Any idea? Using C#3.0 Thanks

    Read the article

  • jquery load data

    - by nabizan
    dumbest question ever... but I want to somehow fill 'gid' value in data load gid = 123; from = 33; to = 44; $('#x').load('y', {'range['+gid+'][]' : [from , to]}); so I could get [range] => Array ( [123] => Array ( [0] => 33 [1] => 44 ) ) but with this syntax 'range['+gid+'][]' I get 'missing : after property id'. I'm desperate...

    Read the article

  • emacs debugger: how can I step-out, step-over ?

    - by Cheeso
    I don't know why I'm having so much trouble groking the documentation for the elisp debugger. I see it has a commands to "step-into" (d). But for the life of me, I cannot see a step-out or step-over. Can anyone help? If I have this in the Backtrace buffer: Debugger entered--returning value: 5047 line-beginning-position() * c-parse-state() * byte-code("...") * c-guess-basic-syntax() c-show-syntactic-information(nil) call-interactively(c-show-syntactic-information) ...where do I put the cursor, and what key do I type, to step out of the parse-state() fn ? by that I mean, run until that fn returns, and then stop in the debugger again.

    Read the article

  • See queries that hit SQL

    - by Shaded
    I have a really basic stupid easy question about sql... and I'll probably get -100 points... but here it goes anyway... Is there a way using sql 2008 Management Studio to look at the queries that hit the server? I'm trying to debug a program and I get messages like "Incorrect syntax near the keyword 'AND'". Since the queries are being dynamically generated it's a hassle to figure out what is going to the server. Any help is appreciated!

    Read the article

  • javascript : make a new safe class constructor

    - by guilin ??
    sometimes we loss the new keyword when define new object, obj = new Clazz(); //correct obj = Clazz(); //wrong, but no syntax error, hard to debug. I want to write a function to help me create Class and make it new safe. var Class = function(constructor){ //when constructor // if not call by new return new constructor(); // else constructor(); } var MyClazz = Class(function(name){ this.name = name }, SuperClazz1, SuperClass2 ) MyClazz.extend({ show: function(){console.log(this.name)} }) obj1 = new MyClazz(); obj2 = MyClazz(); // obj1 should same as obj2 Is it possible, any exists module?

    Read the article

  • Vim plugin only works when file is provided as arg to launch command

    - by nsfyn55
    I am using the plugin java_getset.vim. The issue is that the plugin's commands are only available when I launch vim with the file as an argument. user@machine~: vim myfile.java If launch vim and use command-t or NerdTree to open the file in a buffer the plugin's commands are not accessible. All the filetype detection stuff is configured and working(I have syntax highlighting and indentation). The plugin source appears to be written to the letter according the the vim docs for a filetype plugin. Can anyone help me understand what changes a can make so that I can use this plugin in conjunction with Command-t?

    Read the article

  • gtk-sharp-2.0 hide/show external applications(processes)

    - by ziuciek
    Hi, maybe the topic isn't quite precise.. i want to write in c# (gtk#-2.0) an app which opens another app hidden and later shows that app. For now i know only how to open hidden app... in windows...: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Diagnostics; namespace do_kasacji { class Program { static void Main(string[] args) { ProcessStartInfo info = new ProcessStartInfo(); info.WindowStyle = ProcessWindowStyle.Minimized; info.FileName = "notepad"; using (Process pr = Process.Start(info)) { pr.WaitForExit(); } } } } Anyone knows how to change it so hat it would run in linux?

    Read the article

  • Problems making an accurate Visual Studio scheme for Vim (vim scheme specialist needed) .

    - by janoChen
    I'm trying to make an accurate Visual Studio scheme. I set hi function to blood color (#9A1102) for the "CSS function" (selector). But now the brackets with properties (id, class) in html elements also have blood color: (ironically the same color here in Stackoverflow). But I want them blue (#2902FC) e.g.: <div class="first"> <div id="nopic"> Sample of code: " Syntax highlighting hi Comment guifg=#777777 gui=none hi Todo guifg=#8f8f8f gui=none hi Constant guifg=#e5786d gui=none hi String guifg=#2902FC gui=none hi Identifier guifg=#2902FC gui=none hi Function guifg=#9A1102 gui=none hi Type guifg=#EF2811 gui=none hi Statement guifg=#9A1102 gui=none hi Keyword guifg=#9A1102 gui=none hi PreProc guifg=#2902FC gui=none hi Number guifg=#2902FC gui=none hi Special guifg=#2902FC gui=none " Bottom hi Question guifg=white gui=none hi Question ctermfg=white term=none hi ModeMsg guifg=white gui=none

    Read the article

  • Abstract class and operator!= in c++

    - by Alessandro Teruzzi
    Hi All, I have problem implementing the operator!= in a set class deriving from an abstact one. The code looks like this: class Abstract { public: //to make the syntax easier let's use a raw pointer virtual bool operator!=(const Abstract* other) = 0; }; class Implementation { SomeObject impl_; //that already implement the operator!= public: bool operator!=(const Abstract* other) { return dynamic_cast<Implementation*>(other)->impl_ != this->impl_; } }; This code works but it has the drawback to use dynamic_cast and I need to handle error in casting operation. This is a generic problem that occur when a function of a concrete class it is trying to using some internal information (not available at the abstract class level) to perform a task. Is there any better way to solve this kind of problem? Cheers

    Read the article

< Previous Page | 708 709 710 711 712 713 714 715 716 717 718 719  | Next Page >