hi I am working on asp.net application. after login i am viewing Page 1 . Page 2 Page 3 and click on logout. That means my session is expired but when i am clicked on browser back button it will show me page 3...2...1. I want solution for this case as when user is log out and he try to clic...more >>

i have a table: RECORDS1 fields: DATE1,NAME1 data is 21,10,2005 10:24:34 ANDY 21,10,2005 15:24:45 DAVID i search date with this sql select * from RECORDS1 where DATE1='21,10,2005' nothing found its empty i try this also SELECT * FROM RECORDS1 WHERE (D...more >>

I'm working at .NET project to implement a COM interface for a .NET control. The .NET assembly is built with the correct license for the control. Some unmanaged code is creating an instance of the control, inside an MFC dialog. When the control is used inside a WinForm dialog, the license ...more >>

Hi, Hope I've posted to the right groups. I'm trying create a Crystal Report for the first time using C# (novice at that as well). The CR I can handel. What I want to do is to have a whole bunch of fields in my application (winforms) which the user can select to include in the report or not...more >>

I am writing a program with MS Visual Studio .Net 2003, which reads data from a MS SQL DB. Reading the data is fine, but when I push update, so it writes the data, it get the error message invald cast System.Byte to System.Byte[] ? It'll happen even if I just add/change 1 character in a field al...more >>

Hi, I am trying to convert from Julian to Gregorian data in C#. I was exploring teh JulianCalendar and Gregorian calendar classes but still not sure how I can do it. For example, the Julian date is 100033 and I know that it is 2/2/2000 in Gregorian. I would appreciate if anyone can help p...more >>

I'm developing a Windows Forms application, where I would like to handle errors differently depending on whether I'm running from a development environment or directly from a .EXE file. Any ideas how I can determine this? - Turtle ...more >>

My goal is to create a remote installation program to rollout program installs and updates. We're a small company with about 60 workstations, so it's not worth the investment in SMS. I have the first part working which used the directory services namespace to enumerate the workstations in a ...more >>

I should know this but so goes the grey matter... When the following is placed into the head I've forgotten if the .js file gets downloaded from from the server on each PostBack or if there is there some mechanism that knows the file already exists in the browser's cache? <script src=”...e...more >>

I am looking for some examples of adding the scripting engine to Winforms application. I have to implment an equation/math processing engine and this is the route that was selected. -- Thanks in Advance...more >>

streaming random filetypes from .aspx how to stream a file from inside a .aspx? e.g. so one could go href="./foo.aspx?file=bar.mp3" or href="./foo.aspx?foo.dat" etc. preferabley i would like all file types to open with "save as" when href clicked ...more >>

Hi Everybody I have a string that contains part of a directory structure that will be created in the future. I want to display this future tree on a treeview for the user see and then approve it. I was able to populate the first level of the tree, but I'll need some information to how po...more >>

I'm having two tables with no relation and I want to list them both in one report. How can I do this. I have tried to use sub report, but cant get it to work? can someone please help me. If I just create an subreport with one static text object it will not even then show at runetime....more >>

I got 4 virtual CPUs on my computer (xeon processor) and I got this .NET application that runs a lengthy processor intensive task. I have noticed when I start two instances of the application (each one running its lengthy processor intensive task) they use one virtual CPU each. How can I imp...more >>

Hello, I may be mis understanding some of the uses of generics so this example may not be valid, but here goes. I have a method that I wont to be able to return a string or byte array, it declared as : public T Decrypt<T>(byte[] cipherText, byte[] optionalEntropy) how do I know what ...more >>

Hi, I'm using an HTML Input File control on a .Net page and when the Browse button is clicked the file dialog opens at the end user's hard drive. They want this to default to a server share. Is there any way to control where the file dialog opens? Thanks!...more >>

Using .NET, what would be the easiest way to encrypt or hash a string? I have two integer ID numbers stored in a database that I need to "hide" and append to an URL. The primary constraint is that there cannot be any modifications to the database, and that the code should be able to input a ha...more >>

Using VB.NET, I need to create an executable that will accept parameters. This app will not have any user interface, I just want it called from another app but I need to send some parameters in. Can someone tell me how to do this? Thanks!...more >>

Hi! I'm trying to write a background app that receives input from an external device (through the comm port) and then sends that data to the active foreground window that has focus. So far I have gotten this working using the "keybd_event" function to send the data to the foreground window, b...more >>

I have an array that I am populating from a database. I am looping through the array to write the values to a datagrid. At this point, I'm stuck. I can't figure out how to read the first four values from the array, then go on to the next four values, then go on to the to the next, etc. T...more >>

I have a problem with an XML file which is e-mailed to a company which converts it into invoices for our customers. I have sent them various test files over the past few months and upto last week they converted them with no problems. With the most recent files, they are getting errors with the...more >>