VS 2008 How To Set Auto-DATETIME
Sep 16, 2010how can i set auto DATETIME...
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Convert String To Datetime & Calculate The Datetime?
Mar 23, 2011how to convert string to datetime and calculate date
View 3 RepliesMatch A Certain DateTime Value With Current System DateTime
May 7, 2010I'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.
View 1 RepliesMatch A Certain DateTime Value With The Current System DateTime?
May 1, 2010I'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.
Update Datetime Field With Empty Datetime?
Aug 8, 2011datetime1 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
View 1 RepliesVS 2008 DateTime Structure?
Jul 29, 2009I want to pick specific elements from DateTime and assign them to variables: Year, Month, Day, Hour, Minute, and Second. In MSDN, I saw ways to assign it all, but not what I needed.
Can anyone one give a hint, or two?
C# - Compare Datetime.Now With A Datetime Variable
Dec 27, 2010I 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?
View 7 RepliesChallenge - DateTime Minus DateTime?
Mar 14, 2011Assume 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].....
VS 2010 Add Datetime Into Sql - Datetime - Field
Jan 29, 2011I'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?
DB/Reporting :: Retrieve DateTime To VB 2008?
Oct 13, 2009I am not new to vb but still an amateur, however, I am still learning linking vb apps to mysql, here is where my troubles begin. I am stuck and been trying for hours on end to get past this problem. It's starting to hurt my head! I am sure others have similar problems.I posted my imports and the module I put my public sub in. The sub is called as a form loads.The Error is:
An unhandled exception of type 'MySql.Data.Types.MySqlConversionException' occurred in MySql.Data.dll
Additional information: Unable to convert MySQL date/time value to System.DateTime
[code].....
VS 2008 Datetime Utc Format And A Vb2010
Mar 9, 2010It's been years since I've had to bother you with my silly questions but those had to do with VB 6. First of all, if I download the VS2010 Express edition will it replace all of my VS2008 edition, or will it be a separate entity. Also, the books I'm studying from are all 2008 -- will they still work on 2010?
[Code]...
VS 2008 Sql Convert Varchar To Datetime?
Jul 8, 2009I got the dates stored as varchar(100). I need to get them sorted when I use these records but I can't now because they are not stored as datetime. Is there any other way to sort dates or if somebody know would I loose my data if I would try to convert the column from varchar(100) to datetime now as it holds my dates or maybe it would convert ok?
View 33 Replies[2008] DateTime V. DateSerial - Age Calculation?
Feb 17, 2009Dim d1, d2 As DateTime
d1 = DateSerial(2009, 2, 29)
d2 = New DateTime(2009, 2, 29)
for some reason i thought the two statements would generate the same date, but they don't. i found this out when trying to do age(years / days) calculations. if you are born on a leap day, i.e. 2/29/2000, dateserial is useful in that in non-leap years it correctly identifies your birthday as 3/1.
VS 2008 : Get System.DateTime To Show Date Only?
Sep 29, 2009my form need to show the current date when click on button. the code inside the button is TextBox1.text = System.DateTime.Now.After clicking, the textbox show "9/29/2009 4:32:10 PM" may i know is it possible for me to show only the date and also to change the format to dd/mm/yyyy?
View 1 RepliesVS 2008 Compare The Month Of A Date With Datetime?
Feb 17, 2012I would like to compare the month of a date with datetime.now, when the datetime.now reaches a month beyond the given date to play a sound. I am novice to this.
View 2 RepliesVS 2008 Overflow Occurred While Converting To Datetime?
Nov 23, 2010Here is the error that is getting thrown:
System.Data.SqlServerCe.SqlCeException was unhandled
HResult=-2147467259
Message="An overflow occurred while converting to datetime."
NativeError=25933
Source="SQL Server Compact ADO.NET Data Provider"
StackTrace:
[Code]...
VS 2008 Schema.ini DateTime DGV Date Or String?
Dec 1, 2011I am importing a .txt file to a gatagridview and writing out a Schema.ini fileMy columns that contains a date value is empty in my DGV when i use the:DateTime in my .ini fileIf I set it to Char then my date is populatedDoes this mean my dates in the text file are not really dates but strings ??
View 2 RepliesVS 2008 String Not Recognized As A Valid Datetime?
Jun 29, 2011I'm creating an XML file from values contained in a datatable. When I try to write an XML date value, I receive "String not recognized as a valid datetime. The dates that are stored in the datatable column is in this format "yyyymmdd". I tried to use XmlConvert.ToDateTime but I get a warning about the method being obsolete and I'm not sure what serialization mode I should use. How would I format the date from the datatable to MM/dd/yyyy and write to an XML file?
XmlWriter.WriteElementString("Add date", XmlConvert.ToDateTime(dr("Date_Added").ToString.Trim)))
VS 2008 - Format / Year And DateTime Function Not Recognized
Dec 3, 2009I recently moved a webservice VB.net project from VS 2005 to VS 2008 and now a conversion I use to create a unique receipt number is no longer working.
The Format() function which is supposedly a Visual basic function gives the error:
'Format' is a type and cannot be used as an expression.
The Year() Function which is also a VB function gives the error:
Name 'Year' is not declared.
The Datetime() Function which is also a VB function gives the error:
'DateTime' is a type and cannot be used as an expression.
The actual code statement remains unchanged between the two web services but VS2005 compiles and VS2008 does not.
Dim julda As Long = CLng(Format(Year(oneRowDon.Item(8)), "0000") _
+ Format(DateTime("d", CDate("01/01/" _
+ Format(Year(oneRowDon.Item(8)), "0000")), oneRowDon.Item(8)) _
+ 1, "000"))
VS 2008 - How To Insert Null Value Into SQL Server DateTime Field
May 7, 2009How can I achieve this. Insert Null Value into SQL Server DateTime Field?
View 5 RepliesVS 2008 : Passing MySQL Parameter As Object Instead Of DateTime?
Jun 13, 2011I 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')
VS 2008 Datetime Picker And Combo Box Return Null
Jul 14, 2009I have a datetimepicker and combobox on my form. If a user does not change the date on dtpicker or does not change text on combo box, these controls return null value, and the save operation fails. The controls are bound to data in a database.
View 1 RepliesVS 2008 : Conversion Failed When Converting Datetime From Character String?
Feb 10, 2011when saving the "conversion failed when converting datetime from character string" is displayed.
Private Sub BtnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnSave.Click
Try
Dim cn As New SqlConnection(ConnectionString)
cn.Open()
[code]....
VS 2008 SQL Trigger Causing Datetime Conversion SQLException When Running From VB?
Jul 20, 2009I'm using VB Express 2008 and MS SQL Express 2008. I have a couple of tables in my SQL database and among them are some log tables that track changes in the data entries of the substantive tables and fields I have. I have one log table fore each of the datatypes that appear in my substantive tables.
For example any change to any field in a substantive table where the field is of a bit type will be logged to the BitTypeLogTable. All of my log files are structured essentially the same. For example the structure for my BitTypeLogTable looks like this:
The other logs are identical except that the OrigValue and NewValue fields have different datatypes according to the datatype they are intended to track. For example the datatypes for those fields in the DatetimeTypeLog is datetime and in the MoneyTypeLog is money.
Each of the substantive tables in my database has three triggers which cause entries to be made to the log tables when the substantive fields are changed. For example, one of the UpdateTriggers looks like the following:
[Code]...
DateTime.Now In Console In Visual Studio 2008 Doesn't Take The Right Format Of Date?
Nov 24, 2009We have installed new computers . The culture has been set to he-IL , as it should in regional settings and in asp.net iis tab in global edit configuration.When I've created a new console in c# and in main put in the line
DateTime date = DateTime.Now ;
My output was - "22/11/2009 12:54:42" as it should by the format "dd/mm/yyyy ..."
[code]....
VS 2008 Unable To Convert MYSQL Date/time Value To System.DateTime?
Dec 26, 2011I need to display on my datagridview the data from MYSQL db, but I'm having a problem on a field which is in DATE format in mysql
cmd.CommandText = "SELECT * FROM tbl_user_log"
cmd.Connection = sqlcon
dr = cmd.ExecuteReader
[code].....
Office Auto-mation :: Auto-mating Excel Spreadsheet Creation?
Jun 5, 2009I am trying to just write something to a cell in a sheet and I am getting the error message:
Exception Exception from HRESULT: 0x800A03EC Stack Trace: at System.RuntimeType.ForwardCallToInvokeMember(String memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes, MessageData& msgData)
[code].....
Convert Iso Datetime To Est Datetime?
Oct 27, 2009How do I convert ISO datetime to locat EST with vb.net?
I have input time as e.g. "20091027T1639Z" which is ISO GMT.
Auto-Resizing In VB 2008?
Jan 9, 2010I have 1 listbox and 2 buttons and some images in the form. So what is the best way to do
View 15 RepliesVS 2008 Auto Run A Exe File Through A CD?
May 1, 2010i have made a math calculator in vb2008
I would like to know if any of you have a snippet for a Auto Run Exe through a CD?
I have seen many USB bootables ones but can't really make it work for CD's