Easter day is determined based on astronomical events. Is there a "date" function or something similar that can be used in Visual Basic programming to project such a day?
View 4 Replies
So I'm on the way out of the woods for my latest app, which will have users across the nation.I'd like to put in an Easter Egg, but ideas are escaping me.Does anyone have a good idea for an Easter Egg to put into my app?
View 15 RepliesI don't want to actually MAKE the pong easter egg, but for anyone with Dreamweaver, try typing 'dreamweaver' into the color selection box to play a round of pong.The bit that I want to know how it works is the bit at the end once you lose.After your loss, it will immediately play a small tune, whether or not your volume is on. In fact, it plays whether or not you have speakers, which makes me think the sound card itself is playing the tune.How can you achieve a similar effect, playing notes without sound or speakers, in vb.net? I would imagine this requires P/Invoke, seeing as there is no obvious way inside the framework.I don't need a whole song, a simple beep or the ability to change frequency of the beep will suffice.
View 1 Repliesi have a list of value contains null values and digit value
i want find max value from list but I do not know what with null value
I do not want to use null values in compare
how to how to computes the maximum value in a list contains null values and digit value in vb.net?
i want a function to calculate days number between 2 dates
for example :
start date = 2011/11/13
end date = 2012/01/02
i want months to be 30 days always .
thats mean
18 days in November
30 days in December
2 days in January
sum = 50 days
I have to create an app that computes the amount income tax that a person has to pay, depending on salary. Income tax should be calculated for each portion of income in each range. Here are the following income ranges and taxe rates:
Not over $7825=10%income tax
$7825-31852 = 15%income tax
$31851-77100 = 25%income tax
[code].....
i keep getting zeros.
Before I build my own and after looking for quite a while (to no avai) does any one know of a function that will return the dates of a recurrence.
For instance:
- The recurrence might be the first Monday of each month.
- The second week of each month.
So what I want is to pass the recurrence information to the function and it will return in an array all the dates that are applicable.I've looked at some other topics here but none are as comprehensive as what I need.
I am trying to implement a function for my SSRS report which will return a color value depending on the values of three dates.
[Code]...
I am using following code in rowdatabound fn.
Protected Sub gvwMileStone_RowDataBound(ByVal sender As System.Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs)
[code]...
ddlEProjectLevels is dropdownlist in edititemtemplate.Whwn i click edit in 1st row ddlEProjectLevels gets loaded with data from database.But in 2nd row dropdownlist does not contain values.Again in 3rd it gets loaded from db.Means in alternate rows,when i click edit dropdownlist(ddlEProjectLevels) doesnot load values.Can anybody help?
I have VBA as a namespace in the vb6 code and i would like to know if there is a way of making .net know what there is, is there a specific application namespace? I have been guessing but haven't had any luck (the beauty of the help boxes, if only i knew more of the language)
If you're not living on the edge, you're taking up too much room
I have the following function which is used by a class. It sets dates. Now the problem I have is one date comes back as dd/mm/yyyy and the other as mm/dd/yyyy
View 2 RepliesI have a generic repository that I communicate with my object context with. My object context has function imports that I want to be able to call through my generic repository. Currently I call them through an "Execute" function, but this is not ideal because I have to pass in my function name and parameters as strings which can cause run-time exceptions. My function imports map to complex types.
Is there a way to do something similar to:
Dim rep As IRepository(Of ComplexType)
Dim type As ComplexType = rep.Find(where:=Function(t) t.FunctionImport(parm, parm)).First()
Here is my generic repository as is:
[Code]...
I'm trying to bold dates on a monthCalendar control. Here's what I've got, but it's showing an error of "'Add' is not a member of 'System.Array'.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim calendarArray() As DateTime
[Code]....
All I want to do is bold all of the dates on the calendar that there are files for.
I have the following code:
Private Sub setDropdowns()
Using licensingModel As New licensingEntities
[code]....
My problem is that i dont know how to define the parameter type for the sub. Because they are different types of objectSets being passed each time, I thought IObjectSet(Of EntityObject) would work, but it gives me the following error:
Unable to cast object of type 'System.Data.Objects.ObjectSet1[licensingModel.tblLookup_Country]' to
type
'System.Data.Objects.IObjectSet1[System.Data.Objects.DataClasses.EntityObject]'
After checking an Xps file i noticed that the string within the Xps file <> is converted to <>So is there any built-in function in the .Net framework that could do this job for me?If it does not exist what characters becides <> should i escape in myOwn function?
I try to implement a search within an xps file, but searching for <> instead of <> returns nothing.
UPDATE: At least i found the list here of xml document escape characters
How can I change the color of certain dates in the MonthCalendar control in VB.NET? For example, I need to change the color of Jan 21 to Red, Sundays to Orange and so on...
View 3 RepliesI have a dataset that returns the following data:[code]The first character is the shift code, the next date is the beginning of the shift the next day is the ending day of the shift and the last field is if it is a day shift (0) or night shift(1).I need to display the dates for the DBX dates in a light blue and the ACY in white.These shifts are always on the same days, just A,B,C,D rotate from night I am new to web development and just trying to create a shift calendar on the fly,What the result should be is a calendar with 4 days shaded blue, and 4 days shaded white.
View 2 RepliesHow do I make a textbox control to accept dates only and convert to a valid date format? I don't want to use the calander control. e.g. if I enter 2/17 or 2-17 or 02/17 or 2/17/2012; it will convert to 2/17/2012
View 4 Repliesbeen a long time since i came to the forum. i use to program a lot in vb6 but its been a long time since i did it so im really rusty. now that im trying to get back to programming, im finding it a bit of a challenge in vb2008... i have this question, im using a datetimepicker control to select dates in a calendar. what im trying to do is disable the textbox in the datetimepicker so that the user can only use the drop down calendar to select the date and not enter the date manually! does any one knows how to disable the textbox in the datetimepicker but still be able to select a date from the calendar???
View 4 RepliesI am currently using VB. I want to do a Calendar Control which have dates highlighted/selected. All these dates are retrieved from a database.
how to put all the dates into an array Second thing I need to know is how to highlight all the dates in the array.
I have done some research on the internet and they said something about selectedDates and selectedDates collection and dayrender. But frankly speaking, I can't really find any VB codes regarding this. Dates format will be in dd/MM/yyyy
Imports System.Data.SqlClient
Partial Class _Default
Inherits System.Web.UI.Page
[Code]....
Is it possible to disable the dates that appear before todays date in a dateTimePicker control?I want to put in some validation so that my users can only select days in the future...ie a future appointment date?
View 5 RepliesI'm Using MonthCalendar Control in my Form to select Multiple Dates. (for eg. 1st April,20th April,25th April). I'm planning to Change the date the user clicked by making it BOLD during run time, so that i can retrieve the results in a Date array. [code] MessageBox clearly shows the date selected, but no effect for the "addboldeddate'.
View 3 RepliesI am wanting to retrieve the current weeks dates from a DateTimePicker control.
Eg, if i select Tuesday July 5, 2011, i will return the following dates: Sun July 3 2011 right through to Sat 9 2011
how to manipulate the dates to determine which date will be 30 days more then the datetime control I have on my form. i need to take the chosen date from the DateTime control, and determine what date it will be in 30 days. Eventually I will use this process to search through the database to print monthly reports.
View 4 RepliesI have a few questions. I am not understanding on how to do it.The first question is:
1.When the user clicks the button the info from the controls on the left appears in the label on the right.
2.How to retrieve the selected dates from the calendar control when the user clicks the button?
ive two custom controls, which are used to draw and edit etc...(like paint but customized....) i want to save their images with a single click....So im using the Getimageofcontrol function to do it....its code is below:::
Public Function GetImageOfControl(ByVal c As Control) As Image
Dim rc As New Rectangle(c.PointToScreen(c.Location), c.Size)
Dim i As Image = New Bitmap(rc.Width, rc.Height)[code].....
and the code to call this function for saving the images is simply.. ...
GetImageOfControl(pboxd).Save("c:78.jpg")
GetImageOfControl2(pboxf).Save("c:lp.jpg")
but the problem is that both the images have the same content....
Is it possible? Apparently yes but... how?
View 8 RepliesCan any one tell me how the chart control is used in .net framework 2.0 and it will be helpfull if you give any code
View 2 RepliesIs there a Media Player Control in the .NET Framework? I know there is a COM control, but I was wondering if .NET specifically supports one.
View 3 RepliesI want to know how to show hide/show series of this chart control through Datagridview Checkbox using vb.net
View 9 Replies
