Datetime - Add Number To Date Field?
Feb 22, 2010
i have 2 fields in the database (sql server 08)
Dob = "05/09/1965"
license_age = 16
how do i get the number of years this person hs had licence. so basically dim age1 = current year - (dob - license_age)how do i find out which year he got his license based on the above two fields?
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Jun 22, 2010
I'm trying to format a datetime field to just show the date. The datetime is bound to an asp:label and for the Text attribute I have tried the following....
Text= String.Format("{0:D}", '<%# Bind("CReviewDate") %>')
and
Text= String.Format("{0:D}", <%# Bind("CReviewDate") %>)
[Code]....
In all cases I get a green wavy line under the equation and the tip help says "Validation (ASP.Net): If this attribute value is enclosed in quotation marks, the quotation marks must match. String.Format("{0:D}", DateTime.Now) is the syntax that I have been told should work.
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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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Oct 5, 2010
Dim query as String = "Select * from openquery (devbook, 'SELECT wb.arrival_time FROM web_bookings wb ')"All I need is to convert my arrival_time into a datetime field in the query
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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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Feb 21, 2011
I'm fairly new to ASP.NET & VB.I've been asked to take an existing textbox that is automatically filled with the current date and allow the user to either add a "+" or "-" and a number or a spcific number and convert that into a date.I underdstand the basic concept on how to do this, but I'm running into some problems using the proper commands in order for this to work.The Textbox is called txtDate.What I've tried to do is this:
If txtDate = '+' Or '-' Then
DateAdd("d", txtDate, today)
End If
Here is what the whole thing looks like:
Protected
Sub
DateEnter_Click(ByVal
sender As[code].....
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May 13, 2010
I have an access form that shows a data table. when the form is opened, I want to filter the data in the date column to show only the records that don't have a date entered into the field.
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Aug 6, 2010
I am exporting data from an sql table to an excel spreadsheet in Visual Studio 2008. There is a field that is date/time that I only need the time part of (hh:mm). I am using the Convert command to do this, but I am getting the error 'Undefined function Convert in your expression'. Is there another function I should be using? Or am I missing and Import command at the top?Here is the code (field TimeofFall is the one I am having trouble with):
Imports
System
Imports System.Data
Imports
[code]....
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May 13, 2011
In my VB project I am returning an SQL datetime field to a date variable mdtCreated = CType(oReader("dtCreated"), Date) In an example it returns mdtCreated as #5/13/2011 2:59:43 PM# which is correct. Later on I want to show this as a string to dd/mm/yyyy format. I have tried mdtCreated.ToString("dd/mm/yyyy hh:mm:ss") But that returns "13/59/2011 02:59:43". I want it to return "13/05/2011 14:59:43" How can I achieve this?
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Dec 14, 2009
I am using ASP.NET with SQL Server 2005.
My date get saved in the database with data type = "smalldatetime".
I am displaying the date value into a text box called txtDate with a Reader......
Dim conn As Data.SqlClient.SqlConnection
Dim Comm As Data.SqlClient.SqlCommand
Dim reader As Data.SqlClient.SqlDataReader
[Code]....
But currently my date get displayed as "2008/06/30 12:00:00 AM" and i want to display it as "30 June 2008".
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Mar 4, 2010
I have a date I'm reading from an API in the following format:2010-03-15T00:00:00-04:00
When assigned to a date datatype in C#/VB.net, it's displayed as:
3/14/2010 11:00:00 PM //Note 3/15 is being displayed as 3/14
why is this displayed as the previous day? Is there a name for the format above?
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Aug 12, 2011
I am not sure if this should be in the SQL or vb.net section.But, Basically I have a vb.net application from where I insert a datetime field into the SQL Server Database. Now for some reason the SQL server field(which is datetime) will not display AM/PM, I have referred this link where my code looks like this:
Dim dateToDisplay As DateTime = DateTime.Now dsNewRow.Item("date_created") = dateToDisplay.ToString("MM.dd.yyyy hh:mm:ss tt")
I tried stepping into the code by debugging and it seems to be inserting the PM but is not displayed in the table QuotedateToDisplay#8/12/2011 6:01:06 PM#Date
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Apr 7, 2010
I have a date time picker bould to a Nullable Datetime field in a sql server datatable. The ShowCheckBox option is set to true. If the user unchecks the checkbox on the datetimepicker I would like to the field to be set back to null in the DataTable. The default behaveour does not seem to do this and there is no specific event for the uncheck.
Private Sub dtpCertDate_ValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles dtpCertDate.ValueChanged
If dtpCertDate.Focused Then
[code].....
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May 7, 2009
How can I achieve this. Insert Null Value into SQL Server DateTime Field?
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Sep 9, 2011
I'm using EPPlus to create Excel reports. Now i'm trying to create a Pivot with a DateTime PageField, so that the user can filter the period he want to see by himself. But although i can filter this for year,month or days in the according data worksheet by default, i don't get it working in the Pivot.
Here is what i have:
Dim wsPivot = excel.Workbook.Worksheets.Add("Pivot")
Dim wsData = excel.Workbook.Worksheets.Add("Data")
Dim source = workSheet.GetDataSource
[Code].....
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Mar 3, 2011
I have a stored procedure which updates a database using the parameters I supply but I'm having trouble passing a NULL to the stored procedure
The field I need to make NULL is a DateTime field
DB.Parameters.AddWithValue("@date", NULL)
This gives me the error 'NULL' is not declared. 'Null' constant is no longer supported; use 'System.DBNull' instead
[Code]...
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Feb 21, 2012
I am using VB 2008 & Access Database
for one of my DateTime field in data table i need to Remove it's Time part permently. I have tried following code but Syntax error received.Remove Time part from DateTime Field in MS Access Permanently?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click[code]...
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Jun 12, 2012
the last date was saved on database is: 6/13/2012 12:27:30 PM
In my DateTime Now is:6/13/2012 01:27:57 AM
but, when I execute this function, it always say:"Date has been manually modified, Please Set to Valid DateTime" But, DateTime Now is NOT lessthan the Date from my Database. What's wrong?
This is the code, please correct it,
[Code]...
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Apr 11, 2011
From what I can tell Date and DateTime have the same functionality. Is there a reason why I would want to use one instead of the other?
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May 12, 2009
I have a datetime for eg:23/9/2009 10:00:00 AM .I want to get date from datetime.Means 23/9/2009 .
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Apr 1, 2009
Duplicate: How to truncate a date in .net? I have datetime field containing '4/1/2009 8:00:00AM'. I want to get '4/1/2009' without the time.
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Jul 2, 2010
I want to insert only date into the db but in the following statement that I've wrote which inserts the date in mm-dd-yyyy hh:mm:ss format.
InsertCmd = "Insert into Blotter (Name, Product, Date_Time) values ('" & NameLabel.Text.Trim() & "','" & ProductTextBox.Text.Trim() & "','" & TimeLabel.Text.Trim() & "')" & "Update Blotter Set Name = UPPER(Name)"
I have tried the following code, however it didn't work.
InsertCmd = "Insert into Blotter (Name, Product, Date_Time) values ('" & NameLabel.Text.Trim() & "','" & ProductTextBox.Text.Trim() & "','" & (CDate(TimeLabel.Text.Trim().ToString("MM/dd/yyyy")))& "')" & "Update Blotter Set Name = UPPER(Name)"
[code]
I also tried format the TimeLabel as below but still didn't work. [code] TimeLabel.Text = CDate(DateTime.Now).ToString("MM/dd/yyy")
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Apr 5, 2011
I'm pulling into a variable a datetime value. Now, I want to post this value back to my database, but I need it to be only the year digits. How do I get VB.NET to trim the month, day, and time off and just return the four character year (e.g. 2011)?
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Sep 22, 2010
How can i get only date from date and time picker.
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Jun 22, 2010
How to retrieve only date from DateTime in vb.net in dd/MM/yyyy format and I have a field in table in access 2007 which has date/time datatype. Data is stored in datetime format.(04/08/2010 12:01:07 AM) I want to retrive only dates which are in range of two DTPickers in dd/MM/yyyy format [Code]
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Dec 6, 2010
why is it that we have a date and a datetime which are exactly the same thing, and is it preferred to use new Date or new DateTime?
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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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Aug 11, 2011
I have written XML file having a Date <Date>10/11/2011</Date> tag in it as above and trying to read it from VB.NET:
If TypeOf item Is DateTime Then
nextItem = DirectCast(item, DateTime).ToString("MMM-d-yyyy hh:mm:ss.fff", ci)
End If
How to get the date tag in XML in datetime format in the application? (As I am getting the date value as string in the application)
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Feb 22, 2010
similiar question to the one asked before by someone, about age and date.
I have 2 fields in sql server 2008
DOB = "01/05/1952"
licence_age = 16
how do i get the year he go his licence from this information?
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Dec 30, 2011
I have a sql query which extract a field of datatype smalldatetime. I read this field using datareader, convert it to string and store it in a string variable.I get the string as 1/1/2012 12:00:00 AM ,here i want to use only date part of this string and i have nothing to do with the time.How can i cut only the date from the string and get the output as 1/1/2012?
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