c#-4.0

问题 I'm trying to move data back/forth between managed (C#) and unmanaged (C++ Win32) code. I can use Marshal.Copy and it works just fine until the datasets get bigger > 2GB as Marshal.Copy has a signed 32 bit int (2GB) limit for length. Any idea how to get around this? Currently I use AllocHGlobal(IntPtr) on the managed side and .ToPointer() on the unmanaged side. If I can't use Marshal.Copy to move large data (> 2GB) back/forth what can I use? 回答1: My first reaction was: why are your copying

问题 I have a windows form that sets the text property in a textbox to that of a string variable. When the form is ran, it has all of the text in the textbox selected. I need to try and figure out how to keep that from happening. I tried the DeslectAll() method on the textbox but that doesn't seem to work. I also tried txtBox.SelectNextControl(txtCostSummary, true, false, true, true); but I kind of was guessing on what the paramters needed to be set to, tweaking them doesn't seem to make a

问题 I am having trouble getting the key by specifying a value. What is the best way I can achieve this? var st1= new List<string> { "NY", "CT", "ME" }; var st2= new List<string> { "KY", "TN", "SC" }; var st3= new List<string> { "TX", "OK", "MO" }; var statesToEmailDictionary = new Dictionary<string, List<string>>(); statesToEmailDictionary.Add("test1@gmail.com", st1); statesToEmailDictionary.Add("test2@gmail.com", st2); statesToEmailDictionary.Add("test3@gmail.com", st3); var emailAdd =

问题 I've got the following JSON: {"workspaces":{ "workspace":[ {"name":"Berlin","href":"http://10.80.14.188:8080/geoserver/rest/workspaces/Berlin.json"}, {"name":"Paris","href":"http://10.80.14.188:8080/geoserver/rest/workspaces/Paris.json"}, {"name":"Rome","href":"http://10.80.14.188:8080/geoserver/rest/workspaces/Rome.json"}, {"name":"London","href":"http://10.80.14.188:8080/geoserver/rest/workspaces/London.json"}, {"name":"usa","href":"http://10.80.14.188:8080/geoserver/rest/workspaces/usa

问题 I want to search a folder by its name. But I don't know the location of the folder. Have to get the path of that specific folder. How Can i do it? 回答1: You have to specify the directory to search for the folder using Directory.GetDirectories Method (String, String, SearchOption) string[] directories = Directory.GetDirectories(@"c:\", "*", SearchOption.AllDirectories); To get all drives from the computer, use DircotoryInfo.GetDrives and then search in all of them you can try: DriveInfo[]

问题 I'm attempting to build an API like thing against a set of REST services. There are basically different operations that report their progress and support cancelation. I opted to use the TPL to make async functions and managed load. Here is my most basic operation that is to be inherited accordingly: using FileOnlineCore.Enums; using FileOnlineCore.EventArguments; using FileOnlineCore.Events; using System; using System.Collections.Generic; using System.Linq; using System.Threading; using

问题 In my Online Registration application, I've created two models as below. TeamModel is used to store information regarding the team and project while MemberModel will contain information regarding the members of the team. public class MemberModel { [Display(Name = "Member Name")] public string MemberName { get; set; } [Display(Name = "Speciality")] public string Speciality { get; set; } public bool IsLeader { get; set; } } public class TeamModel { [Display(Name = "Team Name")] public string

问题 I'm opening a URL in a web browser using the following code: Process p = new Process(); p.StartInfo.FileName = GetDefaultBrowserPath(); //gets path to default browser from the registry p.StartInfo.Arguments = "htp://www.google.com"; p.Start(); Can someone tell me how I would wait for IE to be loaded? Is this the correct way to go about this? Thanks, Jimmy 回答1: Just do this: Process.Start("http://www.google.com"); It'll open it in the default browser. 回答2: This might be what you're looking for

问题 I'm opening a URL in a web browser using the following code: Process p = new Process(); p.StartInfo.FileName = GetDefaultBrowserPath(); //gets path to default browser from the registry p.StartInfo.Arguments = "htp://www.google.com"; p.Start(); Can someone tell me how I would wait for IE to be loaded? Is this the correct way to go about this? Thanks, Jimmy 回答1: Just do this: Process.Start("http://www.google.com"); It'll open it in the default browser. 回答2: This might be what you're looking for

问题 I have been working on a project in C# (.net4). Project pretty much allows people to upload files from their local machine to a network share. Network share is secured. It is only accessible by user called "proxy" which is created in active directory. I did some research and I found this class which I used for impersonation. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Runtime.InteropServices; using System.Security.Principal; namespace