visual-studio-2010

问题 The Command Window and the Immediate Window seem to do very similar things (for example, I can display variables in both windows by typing ? myVariable ). What are the differences and why does Visual Studio include both? 回答1: They do different things. Immediate window: The Immediate window is used at design time to debug and evaluate expressions, execute statements, print variable values, and so forth. It allows you to enter expressions to be evaluated or executed by the development language

问题 This question already has answers here : Can I install two different versions of Visual Studio on the same computer? (3 answers) Closed 3 years ago . Is it possible? or there is a compatibility issues between the two versions? Because our company is using an outdated version of visual studio (VS2005) and I wanted to try out Visual Studio 2010/2012/2013 for the purpose of learning while there is no project to do. (any of the three newer version is fine) but I don't know if it'll affect the

问题 I have Visual Studio 2008 and 2010 installed side by side, but trying to open either a 2008 or 2010 sln file results in nothing. The hour glass comes on for about a second and then it goes away and nothing is opened. I read somewhere to relate sln file to VS directly, but I can't go that route because I don't want 2008 solutions to open with 2010. Does anyone know what the problem might be and how to fix it? 回答1: If you are running Vista or Windows 7 with the UAC enabled and have "Run this

问题 I have a winforms app that uses a UserControl. The user control's job is to collect a file that the user drops on it from Windows Explorer, Open the file, determine the type and handle it accordingly. This control worked PERFECTLY under Visual Studio 2008 Pro. I upgraded to VS 2010 Pro, and now, it doesn't work. Is there a flag or a property that has changed that I should be aware of?? I made a quick demo to test. This demo works perfectly under 2008, but doesn't work at all under 2010. The

问题 I'm trying to insert a copy of an existing vector element to double it up. The following code worked in previous versions but fails in Visual Studio 2010. #include <iostream> #include <vector> using namespace std; int main(int argc, char* argv[]) { vector<int> test; test.push_back(1); test.push_back(2); test.insert(test.begin(), test[0]); cout << test[0] << " " << test[1] << " " << test[2] << endl; return 0; } Output is -17891602 1 2 , expected 1 1 2 . I've figured out why it's happening -

问题 Can anyone explain why this code works: public class AdministratorSettingValidationAttribute : Attribute { public AdministratorSettingValidationAttribute(AdministratorSettingDataType administratorSettingDataType) { DataType = administratorSettingDataType; } public AdministratorSettingValidationAttribute(AdministratorSettingDataType administratorSettingDataType, Type enumerationType) { DataType = administratorSettingDataType; EnumerationType = enumerationType; } } ...but refactoring it to use

问题 In relation to this previous question I am trying to create a batch file which as part must remove and add a reference to an XML *.csproj file. I have looked at this, this, this and this previous question but as a powershell n00b am unable to get it working (so far). Can anyone help me with the following? I want to remove two specific references in a VS2010 csproj file (XML) and add a new reference. I opened the csproj and the reference can be found at the following location <?xml version="1

问题 How to capture mouse wheel on panel in C#? I'm using WinForms EDIT: I try to do it on PictureBox now. My code: this.pictureBox1.MouseClick += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseClick); this.pictureBox1.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseClick); private void pictureBox1_MouseClick(object sender, MouseEventArgs e) { MessageBox.Show("Click"); } Clicking works. Wheelling doesn't. Why? 回答1: Windows sends the WM_MOUSEWHEEL

问题 Will Visual Studio 2012 interfere/break .NET 4 and/or Visual Studio 2010 if installed side-by-side on the same instance of Windows? 回答1: As Reigo said, yes. Here's the link to the official Microsoft page with the information Reigo provided, and more details: http://msdn.microsoft.com/en-us/library/ms246609%28v=VS.110%29.aspx 回答2: The .net 4.5 release is an In-place upgrade. This means that the binaries for .net 4.0 will be REPLACED by the binaries for .net 4.5 . Microsoft has attempted to

问题 string foo() { return "hello"; } int main() { //below should be illegal for binding a non-const (lvalue) reference to a rvalue string& tem = foo(); //below should be the correct one as only const reference can be bind to rvalue(most important const) const string& constTem = foo(); } GCC is the good one to give a compile error : invalid initialization of non-const reference of type std::string& from a temporary of type std::string VS2008 is not too bad as at least it gives a compile warning :