asp.net-4.0

问题 I am refactoring some code an have a question that i could use a few comments on. The original code download a file to a stream. Then it writes the stream to a File in a temp directory before using File.Copy to overwrite an existing file in the production directory. Are there any benefits from writing it to the temp dir first and using the File.Copy in contrast to just writing the stream to the production directory right away? One reason could be that the File.Copy is faster then writing a

问题 Currently we are facing a problem regarding session fixation. We do have one site which is secured i.e. Https and there is no authentication for it. It means it has anonymous access. So, we are facing session fixation problem from hacker. Can someone help and guide on this???? 回答1: You should find the information you need here: OWASP - information about Session Fixation Session Fixation Vulnerability in ASP.NET - Session Fixation in ASP.NET 来源： https://stackoverflow.com/questions/15021431/how

问题 I converted our web site to asp.net 4.0 in VS 2010. Crystal reports (version 10.5.3700.0) renders the reports, but the toolbar will not display (so the print/change page functionality is gone). I have set AspCompat="true" in the page that hosts the viewer, and tried just about every combination in the properties for the viewer, but the toolbar will not render. I have also tried different ClientIDModes , nothing seems to work. The only work around I have come up with so far is to set

问题 Is this possible? I installed them, but they don't appear. Do I have to import them or something? 回答1: Please, take a look: How use MS chart control with VS 2010? I haven't tried it with VS2010, but I would assume the process for using it is exactly the same as described there for other versions of VS. It won't appear in the tool box until you instal the add-ons 回答2: If you cannot see the Chart control in the Toolbox, right click in the Toolbox, select Choose Items, and then select the

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 8 years ago . I can't get a new ASP.NET 4.0 application to work on IIS 7, in Windows 2008 R2. All I can see in my event log is the below error. I can't seem to find any information about what it means, can anybody help? Log

问题 I have this code: Stream f = File.Open("data.majid", FileMode.OpenOrCreate, FileAccess.ReadWrite); Where will be file created? 回答1: From the File.Open MSDN documentation: The path parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory. 回答2: Usually the directory where the process was started from. This is the current working

问题 I have two buttons, preview and Save. With help of preview button user can view the data based on the format and then can save. But when preview is clicked, one textbox attached to ajaxcontrol (Calender) becomes empty and user have to fill the date before saving. How to handle this? On preview click i get the details to show the data in layout. <asp:TextBox ID="txtDate" ReadOnly="true" runat="server"></asp:TextBox> <div style="float: right;"> <asp:ImageButton ID="imgcalender1" runat="server"

问题 I have a library project that should be the base for several web applications. I am trying to implement System.Web.Security.MembershipProvider but for some reason Visual Studio cannot find it. It manages to find System.Web.Security.SqlMembershipProvider but not MembershipProvider. Any idea why? I am using Visual Studio 2010 with .NET 4. 回答1: Starting in .NET 4, MembershipProvider is declared in System.Web.ApplicationServices.dll (strangely enough), so you need to add a reference to that

问题 I have an app used Microsoft.Web.Services3 before. Now I want to move this app to .NET 4.x. What's the replacment for Microsoft.Web.Services3.dll in .NET 4.x? or I should keep the assembly Microsoft.Web.Services3.dll and the reference to it in my app even I use .NET 4.x? 回答1: You might want to consider migrating your WSE Web Services to WCF. That article says The benefits of migrating WSE 3.0 Web services to Windows Communication Foundation (WCF) include improved performance and the support

问题 I have image file placed on the one server and application on other server. I want to access that image, below code I have written: On default.aspx, I have <asp:Image ID="Image1" runat="server" ImageUrl= "GetImage.aspx?imgName=MyImage.jpg" /> and on GetImage.aspx, I have written the below code on page_load protected void Page_Load(object sender, EventArgs e) { // Changing the page's content type to indicate the page is returning an image Response.ContentType = "image/jpg"; var imageName =