Cross Sign when using multithread
hi .....i have created a c# windows form application ,i one of my form i have use a BackgroundWorker to do another opertion in another thread in memory , but sometime the application throw an exception...
View ArticleProblem with OleDBConnection and WindowForm
Hello,this is my first post here, so dont get me wrong :p I have 2 diffrents problems with OleDBConnection. First problem is that when i open for example. access database my window from get smaller and...
View ArticleSingleton design pattern is preffered to get a DB Connection
i saw many developer create Singleton class for db connection. i just like to know is it good or evil when application will be used by many users. if not good please discuss all the bad situation may...
View ArticleSQL Statement Type Identification
Ok... I need a way to analyze a SQL statement, and determine the type (Insert/Update/Select/etc.). I can do a simple search of keywords, but I fear in special circumstances, a field may be using...
View ArticleStructuring of program/variables
I have been struggling for some days without making progress no matter what I have read.I need to declare some variables that will be inserted/typed from the user through textboxes and with...
View Articlehow to merge duplicate data rows in to one data table in c#
Hi,how to merge duplicate rows in to one data table in c#Title PID DID AID PAIDST 20,21TS 22, PS...
View ArticleHow do I open a .chm file using fileToolStripMenuItem c#
I tried to make it work but it didn't work using ToolStripMenuItem.there are no errors,but did not openHow can I solve it in case the project file has been moved to another device? private void...
View ArticleIs this correct for returning multiple values of different data types from a...
I need to return a string result and a bool value from a function, so I created an object[] return type. It seems to work, but I am checking to see if this is the correct approach or if there is a...
View ArticleCompilation Error for missing ceratin appsettings in web.config
Hi,Is it possible to throw a compile error if certain app settings are missed in the web.config. Since after some addition in development environment config files by chance if some goes overlooked to...
View Articleform validate for grid view with sqldatasource in asp.net to prevent...
I have a primary key field in data entry form and shows primary key violation error when try to insert duplicate entries. But I want to display the message, "the data already exits" with some...
View ArticlePLINQ (C#/.Net 4.5.1) vs Stream (Java 8) Performance
I am trying to compare performance between parallel streams in Java 8 and PLINQ (C#/.Net 4.5.1). Here is the result I get on my machine ( System Manufacturer Dell Inc. System ModelPrecision M4700...
View ArticleStart/stop Service on remote server as non-admin (need gui interface)
I need to create a gui that should be pretty simple. One start button to stop a service on a remote pc. (meaning I'll need to hard code the domain account into the code for rights), then I just need a...
View ArticleDataGridView not saving data to .sdf database because it's bound to the Debug...
Hello Everyone:In short, how do I change my binding source or table Adapter to connect with my main .sdf database file, instead of the .sdf database file in my \bin\Debug folder?I've checked my...
View ArticleAccess database only update in debug directory...in main directory it doesn't...
Hi,I have created an access database, and show it in visual form with datagrid view. When i modifie it it just saves it in debug directory. So when i debug the program again i have the old info, that...
View Articleproblem accessing contacts using carddav protocol from yahoo or any other web...
Hi,I wanted to retrieve contacts from Yahoo or any third party CARDDAV supported mail servers using CARDDAV protocol. I made some requests using PROPFIND but getting empty address book. I think I am...
View ArticleSearch & Concatenate Strings
i want search this string like "A B C D E F"and get all concatenation probabilities with knowledge that first element of array is fixedconcatenate 2 elements (first & second)(first& third)...
View ArticleProject templates missing, not listed, can't find/fix, please help, can't...
I have a screenshot of my "New Project" screen at http://i.imgur.com/P6XebmK.png, and I can't seem to find the "Other Project Types" section, meaning I can't install InstallShield LE, or at least, I...
View ArticleAfter Email Attachment I delete the all files from folder but it do not delete
After sending Email attachments: I delete files after five minutes but it do not deleting and error message it is used by an other process. I clear and dispose the attachments but error is still their....
View ArticleRun C# Application before login with admin previlages
I want to start my C# application before login and perform my task. I read out GINA but can't find help I need code and apis that run my application before login, I want to try on same machine...
View ArticleReading text from a file as blocks
Hello I'm trying to store a text file into an array. The text should be stored separately depending on the indices as block. I get the error message that the index was out of range. What am I doing...
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