c#-4.0

问题 I am using ProcessStartInfo class to execute a batch file. But I am not so aware of using it properly. When I execute a batch file can we track is there any error or not. In my scenario, batch will start another process and it is successfully started it will be keep on executing. And if there is any error executing batch file it will exit. This is the code I am using. I have to track both successfull start and failure as well. internal bool ExecuteBatchFile(string fileName, int executionTime)

问题 I am getting xml data through an httpwebrequest. The following code was working fine. But something changed and suddenly started to give me an exception on Read() method with error : The '', Hexadecimal value 0x1F, is not a valid character. Line 1, Item 1. In web browser sURL gives me a valid xml. I dont know what changed. HttpWebRequest req = (HttpWebRequest)WebRequest.Create(sURL); req.Method = "GET"; WebResponse response = req.GetResponse(); StreamReader resStreamReader = new StreamReader

问题 I am writing a .Net WPF application using C# for a Windows 7 64 bit platform. My application needs to communicate with a Zebra KR403 printer connected through USB. My questions may be very basic, but I'm hoping this post will help others who are new to using this printer in .Net. 1. Which SDK should I be using? Is it as simple as adding a .dll to my project and using it? I have tried using the Windows CE SDK, but I get a BadImageFormatException when the ZSDK_API.dll tries to load ZebraUsb.dll

问题 I am writing a .Net WPF application using C# for a Windows 7 64 bit platform. My application needs to communicate with a Zebra KR403 printer connected through USB. My questions may be very basic, but I'm hoping this post will help others who are new to using this printer in .Net. 1. Which SDK should I be using? Is it as simple as adding a .dll to my project and using it? I have tried using the Windows CE SDK, but I get a BadImageFormatException when the ZSDK_API.dll tries to load ZebraUsb.dll

问题 So, I am playing around with ActiveX and C# and ways how both of them can work together. the thing is I have hit the wall right in the beginning with mentioned error. Steps I have followed: In VS2010 I selected MFC ActiveX Control project. Then I added a method "SHORT Multiply( SHORT a, SHORT b);" by clicking the Add method option in the menu that pops when you right click _DProjectname under ProjectnameLib in solution explorer. The code for the method is as follows: SHORT

问题 I am having a devil of a time getting an output value from SQL Server. Here is my stored procedure: ALTER PROCEDURE [dbo].[Insert_UnknownCustomer_Quote_Document] -- Add the parameters for the stored procedure here @NewDocumentFileName nvarchar(100), @NewDocumentWordCount int, @NewQuoteAmount money, @NewQuoteNumber int OUTPUT = 0 AS DECLARE @Today datetime SELECT @Today = GETDATE() BEGIN TRANSACTION BEGIN TRY BEGIN -- SET NOCOUNT ON added to prevent extra result sets from interfering with

问题 I am having a devil of a time getting an output value from SQL Server. Here is my stored procedure: ALTER PROCEDURE [dbo].[Insert_UnknownCustomer_Quote_Document] -- Add the parameters for the stored procedure here @NewDocumentFileName nvarchar(100), @NewDocumentWordCount int, @NewQuoteAmount money, @NewQuoteNumber int OUTPUT = 0 AS DECLARE @Today datetime SELECT @Today = GETDATE() BEGIN TRANSACTION BEGIN TRY BEGIN -- SET NOCOUNT ON added to prevent extra result sets from interfering with

问题 I am having a devil of a time getting an output value from SQL Server. Here is my stored procedure: ALTER PROCEDURE [dbo].[Insert_UnknownCustomer_Quote_Document] -- Add the parameters for the stored procedure here @NewDocumentFileName nvarchar(100), @NewDocumentWordCount int, @NewQuoteAmount money, @NewQuoteNumber int OUTPUT = 0 AS DECLARE @Today datetime SELECT @Today = GETDATE() BEGIN TRANSACTION BEGIN TRY BEGIN -- SET NOCOUNT ON added to prevent extra result sets from interfering with

问题 This link explains how to handle it on the server side via the ASPxGridView.AfterPerformCallback event: http://www.devexpress.com/Support/Center/p/Q274366.aspx How can I handle it on the client side? I am working on a custom server control and I have this client side function on my control: applyFilterToGridView: function () { this.theGridView.ApplyFilter(this.filterCondition); this.filterAppliedEvent(); } Because ApplyFilter does a callback, this.filterAppliedEvent() is not called at the

问题 I have a windows C# WinForms application. I'm confused by the way the default task scheduler is behaving for parallel class in task parallel library. When I call Parallel.For inside ParallelForEach method I was expecting the numbers to get printed in jumbled fashion in output window through Console.WriteLine statement inside "Method1" method. Since I'm not passing any ParallelOptions to configure the scheduler for Parallel class it should be using default task scheduler but numbers are