I have written an application and SQL database to handle accounts. Everything is working fine except I have a small problem with week numbers.For example:Mon 29th June 2009 is the start of week number 27.Tue 30th June 2009 is also week 27.Wed 1st July 2009 is also week 27 - BUT it is into a new month.
View 3 RepliesI would like to display week numbers in the MonthCalendar but the weeks numbers are not correct. ISO 8601 defines the Week as always starting with Monday and the first week is the week which contains the first Thursday of the calendar year. The MonthCalendar control does not follow this but starts week #1 on the week that Jan. 1st appears.Is there a way to set the first day of the year (like you can with the first day of the week)? I am using VS2008.
View 7 Repliesi am looking for some tip to format a datetime stamp to format Saturday, December 31, 2011. I am able to get day of week, month, year in numbers but not in string. I can create arrays for days,month but i don't want to use lots of memory, if theres a function i can use it.
View 3 Replieswith the code to my form on week numbers. below is what i have on my form code at the monent. and where the text in green is
View 11 RepliesI need to generate a report that shows the 52 weeks of a year (or 53 weeks as some years have) and their start and end dates. There is an ISO spec to do this but seems awfully complicated! Im hoping someone knows of a way to do it in C# or Visual Basic (its actually for Visual Basic 6 but I will try port it across)
View 7 RepliesI wanted to warn the user that a text box only accepts 2 characters that are only numbers. I have the maxlength property of the textbox set to 2. I also need the user to be able to BS to correct the entry, but the BS goes over the maxlength.
Private Sub txtBusDay_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtBusDay.KeyPress
If txtBusDay.TextLength = 2 Then
txtMonthNum.Text = ""
[code]...
In regular SQL i could do something like
SELECT * From T GROUP BY DATEPART(wk, T.Date)
How can i do that in Linq to SQL ?
The following don't work
From F In DB.T Group R By DatePart(DateInterval.WeekOfYear, F.Date)
Also don't work:
From F In DB.T Group R By (F.Date.DayOfYear / 7)
How To Get Day Of The Week for example : on label1I Want To Code The Program That Turns Off The Computer On Saturday And Sunday
label1.text = 'The Day Of The Week Code'
if label1.text = "Saturday" then
Shell("Shutdown -s -t 1")
[code].....
How To Get Day Of The Week for example : on label1. I Want To Code The Program That Turns Off The Computer On Saturday And Sunday
label1.text = 'The Day Of The Week Code'
if label1.text = "Saturday" then
Shell("Shutdown -s -t 1")
end if
if label1.text = "Sunday" then
Shell("Shutdown -s -t 1")
end if
I have an application with a button on it which launches a backup program. I actually want to backup it each week. So when you launch the program, it looks if its time to backup. What code could i use, i don't really think i need to be saving things in text files, do i ?
View 4 RepliesI need want to create a array for the days of the week.
Dim DayOfWeek As Integer = Date.Today.DayOfWeek might give me 1 meaning monday, and i want it to looking in the array for the value 1 and find the one that matches.
I have this requirement in my app. I need to define a week, so for example, I have a GameWeek table. it has weekid(PK),description column. Then I have a GameWeekDay table which has an ID,WeekID (fk to above table), GameDate, isValid (bit field). So once I create a week, I need to select valid days for that week. so I will have a checkbox column for a user to click a day. and on saving, I will save the Date and the checkbox value to my GameWeekDay table. What I need is a clever UI design.
View 2 Replieshow can i add two excel sheets with numbers and the equal (similar)numbers to save once
View 1 RepliesI have a two buttons: Previous Week & Next Week When i run the app the LabelDate needs to shows up "May 31, 2010 - June 6, 2010" When i click a previous week button i want to set LabelDate's text to "May 24, 2010 - May 30, 2010" If i click Next Week button i want it shows up "June 7, 2010 - June 13, 2010" Means it should always display previous/next week starting from Monday and ending with Sunday.
View 4 RepliesI recently created a very simple project in VB express 2008 to interface with a COM object from an external vendor. I then downloaded the VS2008 90 day trial and found that the identical code in a VS2008 project results in a COMException error "Object is out of scope". Is anyone aware of any differences in how the two packages handle COM object interfaces as I have run out of ideas. Both projects have identical code and all the references are the same. The CreateObject() method correctly creates the object, but any attempt to access methods inside the COM object result in that error. I can even open the VB 2008 Express project inside VS and it still generates the same error.
Here is the code - the vendor dll in question is from Siebel v8.0.0, you'll notice that I have commented out most of the code that comes after the error. Creating a watch in the debugger on the siebApp variable sees it correctly created as {System.__ComObject}type SiebelHTMLApplication. I first tried this by creating the Property Service for variable siebSvcs, but after I started experiencing the COMExceptions, I reverted to using the most basic method inside the COM object I was creating.
Imports
SIEBELHTMLLib
Public
[code]......
while I am navigating, and when I click a link that opens a new window, it open Microsoft Internet Explorer. I would like to make it open a new window of my program, not internet Explorer
View 2 RepliesI once again feel so angry about VB .NET . Here's what ruined my day :Lets say we have have a string variable :
Dim Var1 As String = "blablabla"
If we want to replace something within it , we can use the Replace function :
Dim Var2 As String = Replace(Var1,"a","o")
This works great . My problem appears when I want to replace the " character (double quote) . Thus , when using :Dim Var2 As String = Replace(Var1,"""","o")it will return an error .Of course you may wonder why I care to replace the " character . You see this string variable receives its value from a text box . Thus , if the user uses the " character , I want to replace it with two ' characters (single quote) . Is this replacement possible in .NET
From jmchillihiney's most excellent code bank sumission on Drawing:Quote:The way GDI+ works, controls get repainted on screen over and over again, sometimes many times in quick succession. On each of these occasions the control's Paint event is raised. You need to use the Paint event of the control to perform your own drawing or else, the next time the control is repainted, your drawing will just disappear as the control paints over it.
When you're creating a custom control you should override the OnPaint method and perform your drawing there. When you're designing a form or user control and you want to add custom drawing to a child control you handle that control's Paint event, then perform your drawing in the event handler.
You may have seen, or heard people talk about, controls flickering on screen. That's caused by repainting large areas of the control repeatedly and happens because painting on screen is actually quite a slow process. As such, you should try to do as little of it as possible.So, I am attempting to draw part of a custom control. I have placed a SplitContainer on a UserControl, and oriented it vertically. I then shrunk to top panel to 15 pixels in height. I have two Methods which each draw a different type of Path + fill into the panel, and then draw a border around it (One is a gradient fill, and the other is just a plain color). The idea is that when the user clicks on this panel, it switches from one to the other (a "Selected State" and "Not-Selected" state).
I have also created an icon which looks like the +/- widget on a treeview (or more specifically, on the vs2008 Toolbox, which is essentially what I am trying to emulate here . . .) which toggles as the control is selected/unselected. Not that ultimately, the selected state will change when the user selects OTHER controls, but the Expand/Collapse gizmo will toggle when the user clicks on the panel in question.
Again, check out the vs2008 toolbox. The Group "headers" are what I am after here. Believe it or not, all of this now WORKS (gee me, look what I did!) EXCEPT the initialization. If I "Handle" the paint event of the SplitCOntainer.Panel1 object in any way which prevents the flickering jmc alludes to above, any redrawing required by either initialization OR hiding/unhiding of the host form is prevented. And it seems like the SplitContainer panel is constantly redraing (probably checking to see if the splitter has been moved).
I can post some code, but it is a little confusing, since I am dealing with some semi-complex interaction here. Also, It is not necssecarily structured well ()yet). AFTER I figured out the drawing bits, THEN I was going to try to do some refactoring and restructuring. Code Follows in next post.
I have an unhandled exception event in the ApplicationEvents area of my program, but it never gets called when I do get unhandled exceptions. Is there a trick to making this work?
View 8 RepliesI have the following code in a class of mine. The purpose of this class is to get the balance from a web server. Just in case something goes wrong with getting the balance. I will handle a exception. However, all this is easy to do. But I am left wondering what do I return in my catch statement.
Most of the examples I looked at just write to the console using:
Console.WriteLine(ex.Message);
That is all very well. But in a real application what do most developers do?
My function at the moment returns void. And I am just wondering what else I would return if the webclient is busy?
[Code].....
i am using vb.net 2008 what i want to do is 1. send a selected list of records (with about 10 or 11 fields each) in a text file 2. this text file will b used by another prog. and it will add some data at the end of each record. 3. these additions r to be used by me again by reading it from the text file and then updated again in my database
i have gone through a lot many text file handling eg. but not able to understand what ihave to do.
i know i would somehow have to get the fields in parts but cant get how lset will give me the entier string till a fixed length which i can use for the first field but how do i jump to the 2nd field and so on
pls. note that i cant give any spl. character to diffrenciate the end of 1 field and start of 2nd field.i have to gather and send the fields for each record just 1 after the other.
I am new to VB but I want to find this out. For example there are two objects in my form and when I press W,A,S,D then Object1 should move Up, Left, Down and Right respectively. Object2 moves when I press the arrow keys. How do I make them move together and also separately depending on whether the key is pressed.
View 8 RepliesThis is how I handle online activation for my application the problem is that this is very poor security because i display my Username and Password. I was thinking of using Myslq but i also have to input the Username and the password into the application. What other ways do big companies like Kaspersky handle online activation.
My code
Try
My.Computer.Network.DownloadFile("FTP SITE" + textbox1.Text + ".txt", "C:" + textbox1.Text + ".txt", "USER", "PASS")
Dim auth As String = My.Computer.FileSystem.ReadAllText("C:" + textbox1.Text + ".txt")
If auth = Textbox2.Text Then
Kill("C:" + textbox1.Text + ".txt")
[Code] .....
Whenever we need to handle events, we do it by creating a method which handles the event. Without creating methods; is there some other ways of handling events?
View 6 RepliesI have to get the balance from the web server. Once that is done it will call back into my main app with the result.However, sometime the web server fails for some unknown reason. Could be high volume of traffic or something else. However, I haven't implemented any exception handling in my class. As the app that uses this handles the exception. However, the client has confirmed that when the web server does fail it displays a unhandled exception dialog box. Then they have to click continue to keep using my application. So below I am not sure if I should implement the exception handling in my class.[code]
View 1 RepliesI have an xbox 360 guitar hero x-plorer controller and I was wondering if anyone here knows how to handle the event of a gamepad button press in the xna framework.
View 4 RepliesSo I've made this control that inherits from the treeview control and basically loads objects from active directory into a treeview (url...).All working fine, but as this is the first custom control I have made that I have intended for other people to use, I'm not quite sure how I should approach error handling.I mean, obviously I shouldnt do something like show any exceptions in a messagebox because that might not be what the person that is using the control wants to happen. So do I just write out exception messages to the debug window? Do I swallow exceptions (guessing not)? Do I just totally ignore them so that they are thrown in the user's project?
View 4 Repliesi created a Class library (.dll) and loaded it as reference into a main project. In the code for the class i've handled exceptions using try..catch subs, however when debugging the main project exceptions that are handled in the DLL still get thrown! (the class ".vb" file gets loaded into the debugger and the line of the exception shows up)
Up till now i've found it useful that when an unhandled error occurs in the imported reference, it shows up in the main project with tracing back to the referenced class. But i dont want the exceptions that are handled in the reference class to be thrown when debugging the main project!
As you can see the exception thrown was handled with try...catch this class exception.vb belongs to the project that created the class library (.DLL that i referenced). i didnt even load the project that built the reference so it amazes me that it could find the coding class to begin with.
how to get the name from dayofweek? [code]
View 3 RepliesSorry in advance. I emailed myself my coding since I don't have vb on my personal computer. Sooo, the format is going to be off. But my program allows the computer to generate a random date. The user has to guess what day of the week the random date lands on. I have written the whole code. It all works except when user checks his/her answer. The answer always comes up as incorrect. Here is the coding:
[code]...