C# - DateTimeFormat - Output From A DateTime-Object
Sep 15, 2010
I dont get following desired output from a DateTime-Object: 2010-03-29 13:15:00
My default localization is de-DE, so a simple ToString gives me: 29.03.2010 13:15:00
What I've tried is to create a DateTimeFormatInfo Object from US-Culture and use its DateTimePatterns but without success:
Dim usDateFormat As Globalization.DateTimeFormatInfo = New Globalization.CultureInfo("en-US", False).DateTimeFormat
usDateFormat.DateSeparator = "-"
ruleResult.Claim.Last_Updated_Date.ToString(usDateFormat.ShortDatePattern)
Output: 3.29.2010
What is the best way (readable,fastest) to get my desired DateTimeFormat(i need sometimes the short Date and sometimes the Date and Time like in my example above)?
Why does my DateTimeFormatInfo approach not work and makes it a performance difference when using the String.Format or ToString("yyyy-MM-dd HH:mm:ss") solutions instead of a private shared(static) DateTimeFormatInfo-Object? I'm calling this function at least 30k times and there are many Dates to format inside.
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Oct 14, 2009
I have a string in which for sure there is a date in the following format: YYYYMMDD. So, to identify 14 October 2009 I'll find 20091014.Having this string, how can I format into System.Threading.Thread.CurrentThread.CurrentCulture.DateTimeFormat.ShortDatePattern?
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Oct 22, 2010
The following works fine in c# (assuming value is an object):
if (value is DateTime)
What is the equivalent check for VB.NET?
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Nov 27, 2009
how can i set the DateTime object to the date i want? dim DT as DateTime
DT.Date="2/2/2004 12:00:05"
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Jul 22, 2009
I have a datetimepicker object and a label. Now i want when i choose a date from datetimepicker the label.text to be the next month of the chosen date. I wrote the following code, but it doesn`t work. What is the problem with it?
Private Sub DateTimePicker42_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DateTimePicker42.ValueChanged
Dim dateincome As Date
[Code].....
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Feb 23, 2009
I have a problem in retrieving dateTime object from the database. I have this :
Return CBO.FillCollection(Of ObjectInfo)(CType(DataProvider.Instance().ExecuteReader("sp_SelectAll"), IDataReader))
Then When I want to display the date from the collection I get from the stored procedure. the date was truncated. It shows only the timein the ObjectInfo..there is a field call _mydate as DateTime.
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Dec 11, 2010
I have some some dates as strings in the format dd/mm/yyyy which I need to convert to DateTime object.uggest a simple routine which I can use inside a Loop which produce these Strings.
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Jun 13, 2011
I am having trouble with a mySQL query with the .NET connector. When I create the query, it automatically creates my parameters as objects. I usually change the type to the correct type, which in this case is Date, but I get different results passing in the parameter as a date.When I do "Preview Query" as an object, I get the correct results, but bad results as a Date. I would just leave them as objects, but it errors out when I try to pass a date in.Here's the part of my query that I'm having trouble with:
(Tickets.Resolved >= str_to_date(@startDate, '%m/%d/%Y')) AND (Tickets.Resolved <= str_to_date(@endDate, '%m/%d/%Y')) AND
(Tickets.Status = 'resolved' OR
Tickets.Status = 'rejected')
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Apr 30, 2009
I am trying to create a program that solves the rubiks cube and ive started, I made a program that asks for the variables, now I want to output them using my function writeline(). I am trying to use a for each statement to read and output every variable for each object "face". but I am not sure how to go about it.
Heres the code
Module Module1
Dim Top As New Face
Dim Left As New Face
Dim Front As New Face
Dim Right As New Face
Dim Back As New Face
[Code] .....
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Mar 10, 2010
I am loading an html page into a WebBrowser object in a VB.NET Windows Forms application. The user may make changes to textboxes, dropdowns, etc. on the HTML page displayed in the browser. I want the ability to save the current context to a .pdf file on the local HD. I am able to print using WebBrowser.Print(), which shows the current context, but what ways are possible to get this saved as a PDF file locally?
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Aug 13, 2011
I am trying a .Net remoting project hosted in a console application.I have the following code in remote object class.
[Code]...
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Mar 23, 2011
how to convert string to datetime and calculate date
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May 7, 2010
I'm trying to match a certain DateTime value with the current system DateTime. I have a timer and a label on a form. Timer interval is set to 1000. When the form loads, the timer starts ticking. As soon as the current DateTime matches the value of the variable, it shows a message in the label. When I'm writing the following code, the values don't match even if the current system DateTime is equal to the variable. Label1 isn't showing 'Times Matched':[code]The default format of 'Now' is the same as I have stored in dtmVar variable. So there's no question of format mismatch. Does that mean 'Now' is not actually a DateTime property? Provided, my O.S. is Windows Vista Ultimate and all date/time settings are set to default.
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May 1, 2010
I'm trying to match a certain DateTime value with the current system DateTime. I have a timer and a label on a form. Timer interval is set to 1000. When the form loads, the timer starts ticking. As soon as the current DateTime matches the value of the variable, it shows a message in the label.
When I'm writing the following code, the values don't match even if the current system DateTime is equal to the variable. Label1 isn't showing 'Times Matched':
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim dtmNow As DateTime
[Code]....
Why is it so? The default format of 'Now' is the same as I have stored in dtmVar variable. So there's no question of format mismatch. Does that mean 'Now' is not actually a DateTime property? Provided, my O.S. is Windows Vista Ultimate and all date/time settings are set to default.
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Aug 8, 2011
datetime1 and datetime2now two fields are have data ( date )in table recordi want to update only datetime2 is an emptyi am using visual basic 2010 ( visual studio 2010
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Dec 27, 2010
I try to compare Datetime.Now with a Datetime variable I set, using the Datetime.CompareTo() method. I use a timer to compare these every second and display the result, but as the current time approaches the time I set, the result changes from 1 to -1, but never 0, which means these two are never equal. I'm suspecting the Datetime structure contains milliseconds?
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Mar 14, 2011
Assume the following program is started at 1:59:01 AM on 3/13/2011 in the United States. The first time Timer1 ticks what will be the value of the TimeSpan (ts)?
Public Class Form1
Private Sub Timer1_Tick(sender As System.Object, _
e As System.EventArgs) Handles Timer1.Tick
[code].....
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Jan 29, 2011
I'm trying to add the date and time of Today into a Sql-database-field that has the datetype datetime.
[Code]...
the msgbox gives me the following result: 29/01/2011 18:49:21 my sqlException gives me the following error: 102 - Incorrect syntax near '18'. Is it better that i set the datatype to char in my sql database? It's maybe a bit easier? When I do that, can I calculate with these date?
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Mar 1, 2012
What I am trying to do: There are three powershell scripts with different time delays as shown below.I am trying to run them asynchronously in .NET and I followed this article to implement Asyncrhonous programming. Where I am stuck:The I am not able to retrieve output after the events are invoked.The scripts are being called but then the program ends and it shows "Press any key to continue" in console windows.I don't what I am missing here.
Info: JobRequest is a class that I use to pass around information keep track of jobs.
Sub Main()
OurAsyncFunctionCalling("psDelayScript2.ps1", "-arg1 4 -arg2 5", 1)
OurAsyncFunctionCalling("psDelayScript1.ps1", "-arg1 2 -arg2 3", 2)[code]......
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Sep 25, 2011
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Microsoft.VisualBasic.Interaction.Beep()
System.Diagnostics.Debug.WriteLine(3 + 2)
End Sub
Why I don't see in Output window number 5 as output?
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Jun 14, 2012
I'm just going to throw all my code in here in case there's something wrong with a piece of the code not in the "SelectName()" sub.
Module Module1
Dim selectednames As String = ""
Dim index As Short = 0
Dim inarray As Boolean = False
[code]....
Here's an image of what it does (I suppose you can see what went wrong)13 inputs, 3 outputs expected, only 1 output given.As from what I've figured out so far, it's doing the correct amount of loops etc. It's just as soon as it starts generating the "winner" for the 2nd game key it doesn't get a string value from namesarray.Also, why is
For x = 0 To totalnames - 1
Debug.Print("namesarray(" & x & ") = " & namesarray(x))
Next
not giving me a debug output?
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Oct 27, 2009
How do I convert ISO datetime to locat EST with vb.net?
I have input time as e.g. "20091027T1639Z" which is ISO GMT.
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Jan 12, 2010
[code] "The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value.The statement has been terminated." [code]
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Jul 10, 2010
I am somewhat new to object oriented programming and am attempting to flatten a Linq object hierarchy by using a shim class.how to initalize a derived class with property values from a base class?I have two objects, a base object with about 100 properties, and a derived object which inherits from the base object and adds a few additional properties beyond those of the base object. My simple constructor creates the derived object, but I am looking for a way to initialize the derived object properties with values from the base object.Right now I am using reflection to iterate over the properties individually and I suspect there may be a better way. The following example shows my shim class constructor for the derived class, and two properties:
newProperty1 - a new string property of the derived class
flattenedProperty2 - a new string property of the derived class, copied from a 2nd-level object of the base class
Code example:
Public Class derivedObj
Inherits baseObj
Private _newProperty1 As String[code].......
Is this the correct constructor approach to flatten the object hierarchy using a shim class? My second question relates to initialization of properties in the derived class. The constructor above creates the derived object, but what is the best way to initialize the derived object properties with values from the base object? The following code uses reflection to iterate over the properties individually, but I suspect there may be a better way.
Code example:
' property names are in the string array fieldNames
'baseObjQuery is an ienumerable of baseObj
'derivedObjList is a list of derivedObj[code].....
Is there a simple way to initialize values for the properties in the derived object based upon the values of the common properties in the base object?
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Apr 20, 2011
im using Trace to trace and debug my Application which works fine. Now i wanted to output my Trace Information to a text file like below:
Dim c As Integer = Console.ForegroundColor
Dim ts As TraceSwitch = New TraceSwitch("SPMassUploader-TraceSwitch", "")
Dim tw As New TextWriterTraceListener(Now.ToString("yyyyMMddHHmmssfffffff") & "-" & "output.txt")
Trace.Listeners.Add(tw)
[code]....
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Jul 29, 2011
I am getting following error whenever I want to use IIf function inside entity framework query.
LINQ to Entities does not recognize the method 'System.Object IIf(Boolean, System.Object, System.Object)' method, and this method cannot be translated into a store expression.
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Apr 16, 2010
What do I need to convert?
Dim CEESearchByAppNo = From CEEsearch In dbCEE.tblScanneds _
Where CEEsearch.AppNo = iAppNo
[code].....
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May 8, 2009
How do I calculate the direction an object is facing in degrees, if object A is at x1, y1 and facing object B which is at x2, y2?
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Dec 31, 2009
Occasionally I encountered this exception message while trying to download file from a server using System.Net.FtpWebRequest and System.Net.FtpWebResponse Object.
Download a file.ftpRequest_DL.Method = WebRequestMethods.Ftp.DownloadFile get the response object
Dim ftpResponse_DL As FtpWebResponse = CType(ftpRequest_DL.GetResponse, FtpWebResponse)
[Code]...
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Oct 18, 2010
If I declare my object at the beggining of my page class, and instantiate it in a dropdownlist selected_index change event. Shouldn't this object be available thru out the entire page and also persist thru a postback? I lose the object in my selected date change event in my calendar.
[Code]...
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