.net - XmlSerializer. Deserializion Of Empty Date And Time Elements?

Apr 8, 2011

I am trying to deserialize an Xml file content into a specific object. Everything runs fine but when I include empty tag of type date or time in my xml(having xsd that describes my xml structure) the deserialization fails. What can I do to make deserialization working when empty date tags are appear?

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XMLReader And Empty Elements?

Jul 17, 2011

I'm using to code below to write and read an xml file. Writing works fine, but I get an error message on the"XMLReader.ReadEndElement()" line when an element is empty.'Element' is an invalid XmlNodeType. Line 4, position 6.XMLReader.IsEmptyElement is probably what I should use, but after reading the documentation, looking at an example and playing around with it for a while, I'm still not sure how to use it. No matter what I try, it still keeps showing an error on that line. This is the xml file.

<?xml version="1.0" encoding="utf-8"?>
<Data>
<Storage />
<Time>08:30</Time>
</Data>

[code].....

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Remove Empty Elements From Char Array?

Sep 26, 2011

Remove empty elements from char arrayI have this [code]...

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Resize Array By Removing All Empty/null/0 Elements?

Jun 2, 2012

I have a large one dimensional array that is called ArrayHold which is populated at runtime. I run a loop to scan through the array to find out which elements need to be removed based on a few parameters. This all works great, now I am left with two arrays. The original one and a new one which contains the locations of the elements to be removed.

Original Array: ("A")("B")("C")("D")("E")("F")("G")("H")

Second Array with index/count of elements that needs to be removed: ("0")("3")("5")("7")

End result should be preferably not in a new array but a "ReDim" of the original array:("B")("C")("E")("G")

What would be the simplest way to achieve this? I could run a loop to make all the elements that need to be removed "0" or ""? Would there be an easy way of resizing and array by dropping/removing all the white space or empty elements?

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XML DocumentWriter / Stop Empty Elements Appearing Over Two Lines In .NET

Mar 9, 2011

I am using the XML document object in VB.NET to manipulate XML. My application creates a new XML fragment and updates the XML via the innerXML method:[code]If the reason string is empty I get element spanning two lines in the XML as follows:[code]I am looking for a way of keeping the element on a single line while maintaining the same format, e.g.[code]The alternative <ReasonForPayment /> is not acceptable (third party application wont accept it).

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How Does DotNet Handle Parametrized Dates Where Programmatic Date Has No Time But Sql Date Has Time

Jul 16, 2010

Thought I'd see if Stack overflow is quicker than me testing something while I get a thousand interruptions from other work :)

I'm updating an old VB net application and trying to refactor some of the logic as I go. The app looks for data from a single date across a few tables and writes that view to a file.

Writing the query in SQL I'd get the equivalent of

SELECT * FROM table
WHERE CAST(FLOOR(CAST(table.date AS float))AS datetime) = '15-Jul-2010'

Ideally I'd use

SELECT * FROM table WHERE date=@input

and add a date object as a parameter to a System.Data.SqlClient.SqlCommand instance

Are those two comparable? Will I get the results I expect?

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Record A Start Date And Time And Then The Stop Date And Time In A Rich Text Box

Jan 12, 2010

I am using VB 2008 and want to record a start date and time and then the stop date and time in a rich text box, i can get the start time into the box but so far can only stop the time instead of 2 seperate times, what i have is a drop down box with a list of computers 1-10 i was trying to get it so you picked a certain computer and that went into the text box then you started the timer and that was recorded, finally you stopped the timer and that was recorded but as i am a total newbie it does not work

Here is the code i have.

Public Class Form1
Dim time2 As Date

[CODE]...................

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SQL Exception On Insert Of Dateandtimepicker.value.date Into Date Datatype: (Conversion Failed When Converting Date And/or Time From Character String)

Apr 8, 2010

Title pretty much says it all. How do I format the date of a dateandtimepicker to insert it into the SQL date datatype?

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C# - Convert A Date And Time To UTC Time Based On The Time Zone Of The User?

Sep 6, 2009

I have an ASP.NET application with a SQL Server back end. I am storing all my dates in UTC format and doing the appropriate conversions to the local time zone of the browser viewing it. One of the pages asks for a start date and end date (no times).

I am taking the start date and setting the time to 00:00:00 hours (midnight) and I'm taking the End time and adding a time of 23:59:59, so that the date range covers the whole day. Now what I'm trying to do is do a SQL query to do a search for records in this date range. The problem is, the data in SQL is in UTC time and the user is typing their dates and times in their local date and times. My quickest solution was to convert the date and time to UTC, then search the records. However, by doing this, I am to believe ASP.NET converts the given time and date to UTC based on the server time zone. How can I convert a date and time to UTC time based on the time zone of the user?

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Adding Namespace Attribute To XElement - Prevent Blank/empty Namespace On Child Elements?

Mar 17, 2011

I need to read an xml document from a database record into an XDocument object in order for it to be deserialized. So that the deserialization will work, I need to apply a specific namespace to each of the level 1 elements. So XML looks a bit like this:

[Code]...

How do I prevent the blank/empty namespace being added to each child element of the element to which the required namespace has been applied?

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Have An 'empty' Date?

Feb 11, 2012

I was wondering what is the best way to make sure a date is 'empty' so that, if it hasn't been set by the user, that situation is testable.

I've checked and found one way of approaching the issue:

[Code]....

Is the second one more of a stop-gap measure? Is the first way the sanctioned way (which hopefully doesn't entail a lot of complication with testing/setting the values of the date)?

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.net - Linq To SQL: Asking If A Date Is Empty?

Jan 13, 2009

I've got a new instance of an object in a Linq DBML, but don't know of the test if the a date field is empty.I have tried:

If d Is Nothing OrElse IsDBNull(d) OrElse d <= Date.MinValue Then
TextValue = "nada"
Else
TextValue = FormatDateTime(d)
End If

But the result is "12:00:00 am"

edit: Changed variable name the d

edit: note that the SQL field is nullable

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Date With Empty/null Value?

Jun 23, 2009

i have a date control on form (vb.net) and by default its value is current date. i want to make its value to null or empty so that no date is shown and user choose from the drop down date calendar.

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VS 2005 How To Set Date As Empty

Sep 22, 2010

I am retrieving some data from the db and using an sqldatareader to read the data. I have a date column in the table which i am retrieving in the following mannervb Dim d as DateIf Not reader.IsDBNull(10) Then d = reader.GetDateTime(10) Else d = ???

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Convert Excel Date To Sql Server Date Time Format Using ACE Provider?

Jun 24, 2011

I am attempting to import data in a batch from an Excel Worksheet to a Sql Server database. Everything works except for the one date field in the spreadsheet. The date returned is off by four years from the value in the spreadsheet. Example: The Excel sheet has a date 10/24/2010 14:18, but when I look at the column in my query, the date is 10/23/2006 2:18. This pattern, 4 years and 1 day earlier, is repeated for every row in the worksheet.

The Excel column comes to me as a custom type, formatted m/d/yyyy h:mm. I receive this from an outside vendor and having them change the column is not going to be my simplest solution.

For what it's worth, the relevent part of the query is:

Select [Date Created] From MyWorksheet

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DB/Reporting :: Search A Table, Confining To A Specific Date Range Based On A Date-time Column?

Jul 14, 2009

Would it be possible to search a table, confining to a specific date range based on a date-time column, and get a count of the 10 most used words in a particular var-char column excluding a list of words?All in SQL?Currently I am pulling out the records that match and sorting through the contents outside of SQL, I would think where I can do it directly on the server it would be more efficient.(SQL 2008)

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Display Todays Date When Refresh Date - Time Picker

Jan 3, 2009

i am using date time picker and i am selecting 1 date from calender.after selection of that date i want to refresh date time picker i.e. it should display todays date.

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Inserting Date From Date Time Picker Into Sql Server 2005

Dec 18, 2008

I have an Sql server 2005 table called Emploeefl with 2 fields, EmployeeCode and Date of Birth. The data type for the date of birth is Datetime. I have a Date time picker on a vb.net 2005 form called dtDateOfbirth. When I click on the save button I get the error message "Conversion from string 'yyyy/MM/dd' is not valid. Below is the code

Dim newQE_Date As Date
newQE_Date = Format(Me.dtDateOfBirth.ToString, "yyyy/MM/dd")
'newQE_Date = String.Format("2008/09/10", "yyyy/MM/dd")

[Code]....

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Get SNTP Time - User Can Changes The System Time Of His Computer To A Advancing Date?

Jan 24, 2012

I'm using

Days = Dat2.Subtract(Dat1).Days

where

Dat2 = today

Dat1 = installed date

to trace the days of a program installed in user's computer.However, the user can changes the system time of his computer to a advancing date. How can I get a SNTP time from internet to solve this problem?

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When Form Loads It Load The Current Date And Time But The Time Does Not Change It Should Run?

Aug 24, 2010

I am using this line of code on form load event it is working very fine but i have to problems

1. It replaces the form name and display the date and time but i want to keep both date and time and forms caption separated by some space.

2. When form loads it load the current date and time but the time does not change it should run.

What should i do please please help me code is as follows

Me.Text = Date.Now.ToLongDateString & " - " & TimeOfDay

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Date Time Picker - When Select A Date, The Text Does Not Go Away

Apr 7, 2011

The problem that I'm having is that when I try to select a different date, the text doesn't go away. That may make no sence, but let me tell y'all what I've done.

1: Created a GroupBox
2: Put a DateTimePicker in the GroupBox
3: Put TextBoxs in the GroupBox
4: Changed the DateTimePicker to look like this:
A)Checked - False
B)Allow Drop - True

I thought that if I changed that, then the text in the text box would go to that specific date. It didn't do that, it just stays the same. What I'm trying to do is enter text in say 3/7/11 and when I choose date 6/12/12 it will display blank text boxes for me to enter something different.

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Date Time Picker In Form 1 And Show The Date?

Jun 1, 2010

How do i code a date time picker in form 1 and show the date and time in a label in another, I have 2 forms and a module to transfer.

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Converting An Empty String To A Date, And Then Back?

Jul 20, 2010

I'm trying to do some validation testing in VB.NET. If Entity.WeekEndDate.ToString = String.Empty Then ErrorList.Add(New cValidationError("id", "Incorrect Week End Date"))

Where WeekEndDate is of type Date. When I originally build the object, how can I insert a value into WeekEndDate that will generate an empty string(ie. "") when converted from a Date to a String?

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Reporting Services - Handling An Empty Date?

Jul 14, 2010

I have a report parameter which looks like this: 01.01.2009 00:00:00.Its a date (as string), as you might have guessed :). The problem is, this param can be an empty string as well. So I tried those expressions:

=IIf(IsDate(Parameters!DateTo.Value), CDate(Parameters!DateTo.Value), "")
=IIf(Len(Parameters!DateTo.Value) > 0, CDate(Parameters!DateTo.Value), "")

Both dont work and the value for the textfield where I print the expressions result is always #Error. As soon as I remove the CDate stuff, it works, but I have to use it. IS there another way to achieve that? What I want is to display nothing if its not a date or the date (format dd.mm.yyyy) if its a date.

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Asp.net - Get The Current Date And Time In Textbox In IST ( Indian Standard Time)

Dec 6, 2010

How to get the current date and time in textbox in IST ( Indian Standard Time) in vb.net ?

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Trigger An Event At The Time Selected In The Date Time Picker

Dec 23, 2010

i'm using a date time picker with format set to time. i want to be able to trigger an event at the time selected in the date time picker

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Set A Date / Time To A Date Time Picker In Net 1.1?

Dec 15, 2009

I have a datetime picker in one of our apps. When loading up the win form I need the date time picker to default to the Wednesday following todays date. Any idea how to do this? We are using .Net 1.1 for this app.

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Check Null And Empty Both At A Time?

Jun 17, 2009

I am getting product id value some times null and empty from databasehere how i check if valule null and empty

productid = IIf(IsDBNull(TempDT.Rows(0).Item("productid")) =
True,
"", TempDT.Rows(0).Item("productid"))

[code].....

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Adjust Date/time From PDT To Local Time By +-24 Hours?

Feb 10, 2012

I have a program that reads a file with Pacific Daylight Time, I want users to see the time and date in their local environment.

At present I have in Australia a time difference of 18 hours, so I have a list box with -24 to +24 and currently set at 18, my code is elementary as long as I have moved past day one of the month it suits me personally, but I want to distribute my app, so I need something better.

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Date Time Picker And Event To Trigger With Just Time

Dec 22, 2010

i'm using a date time picker and want an event to trigger with just the time so it will trigger every day at a certain time. can anybody help

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