While I am running the following code
If rdrOnClick.Item("DOB") <> "" Then
dtpDOB.Value = rdrOnClick.Item("DOB"
End If
the error occur
Unable to convert MySQL date/time value to System.DateTime
I 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].....
I have got a MySQL database that has got some dates stored in a Date format (YYYY-MM-DD) however when i try and import the data i get an error saying: "Unable to convert MySQL date/time value to System.DateTime"
[Code]...
i keep getting the error unable to convert chartype to date time or Error incorrect syntax near 14.[code]Please any help on inserting a string into a datetime field in SQL Server.
View 5 RepliesI have a query from within my vb.net code which searchs for a record by date. The date being entered via the code is in format dd/mm/yyyy, i need to search in the database using yyyy/mm/dd? Ideally i thought there may just be a function within MySQL which will convert this. If not in vb.net to convert the string 01/01/2011 to 2011/01/01?
View 1 RepliesI 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?
Im using vb.net and the database is mysql to write a time management system. how i store date and time to the database?
View 2 RepliesI 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
i want to insert a string as date format in mysql table using vb.net.my code is given below.but i always get an error .the string is stored in an array.
mycode
------
Dim sdfsa As String = Convert.ToDateTime(newarray(i + 17)).ToShortDateString().ToString("yyyy-MM-dd")
Dim newdate As Date = DateTime.ParseExact(sdfsa, "yyyy-MM-dd", System.Globalization.CultureInfo.InvariantCulture)
datarw("date_of_birth") = newdate
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?
I have a LAN connection with my project and I need to display a running time and date of with labels anyone have an idea? Is it curdate and curtime?
View 9 Repliescant seem to get this to work , I am tryin gto get the date from last week exactly 7 days ago i get an error when i try this "cannot convert to date "
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim dateTimeInfo As Date = Date.Now
MessageBox.Show(dateTimeInfo.Date.ToString(Format(DateAdd("", -7, "yyyyMMdd"))))
txtFileDate.Text = ""
End Sub
The Now() function in VB.NET returns date and time which is different from the system time that I see on the right-bottom on the notification bar. It is 15 hours slower than the system time. Has anyone ever met this problem? I'm using .NET 2.0.
View 2 Repliesi want to save the value of date time picker control object to mysql but it kept saying error.the code perfectly works for text box values but it doesn't work for date time picker control.
View 1 RepliesI'm having a problem with a MySQL query for returning the "last visit" field in a table.Originally I had:select fname, lname, last_visit from patient where isactive = 1 and uid = 1Which worked perfectly in MySQL, but as soon as the query is executed by my ASP.NET app, it adds in the time field also to the date area. So 2011-12-12 becomes 12/12/2011 12:00:00 AMI tried this also, with no improvement:
View 2 RepliesI am reading a CSV file using OLEDB command in VB.Net
Everything is working fine. the only problem is that one of my columns has time value in a format "07:53.8"
When i read this value using dr.item(1), it reads the string into a date "01/25/2012".It gives me the same value in dr.item(0)
I am not able to read the correct value as shown in the CSV file.
following is the code
For I As Integer = 0 To 2
dr = dt.Rows(I)
MsgBox(dr.item(0))
[Code]....
This is my code for displaying data, but there's always the TIME on my date column
[Code]...
Im having a problem passing a date and time stamp from vb to mysql. My code is as follows:ComboBox1.Text.ToUpper() & "', '" & TextBox1.Text & "', '" & Now() & "'"Where the comboBox populates the first field, the textbox populates the second and in the third I get 0000-00-00 00:00:00. I have formatted the field as date and time - which is what I am after
View 8 RepliesI have developed a vb.net application, which searches for different kinds of dates from a document. When i test the app on my Windows 7, VS2010 PC, the dd/mm/YYYY date read as string is correctly converted to valid date format, and then it can perform followingfunctiontstimespan =Date.Now.Subtract(Convert.ToDateTime(DesiredMatch.Value)).DurationIt works fine on development PC. But when i test the application on my client PC having Windows XP, it throws an error 'string was not detrmined as valid date time windows'.
View 4 Replieshow I can convert date time from dd/mm/yyyy HH:MM:SS to this format 19900101000000.000000+**** as used by WMI? I'm trying to set a schedule for an advertisement in ConfigMgr 2007 using vb.net.
View 3 Repliestried every thing i could think of with no luck so far, i know its got to be some thing in the logic of the conversion but i just cant see it.every thing works except this.[code...]
View 5 RepliesI'm trying to create a function which saves a file as the date and time in a integer value.[code]...
View 1 Repliesi have a datetime field and i want to query it, how to i convert textbox strings to datetime?
Expecting that the user will enter something like dd-mm-yyyy
[Code]...
I am trying to convert a string in the format "20110617111051" to date time. Currently I am using String.SubString() function to extract year, month, day, time to format a standard string and then using Convert.ToDateTime(string). Is there any other simple way to do this?
[Code]...
i have a project that using vb2008 to do a room reservation .here is my problems...i am using datetimepicker to get the date only.for time,i using 2 combo box. first combo box i put o 1-12 inside and Am/pM for another combo boxand i make the date that is get by the combobox as1) a table called bookings,inside bookings there are fields called userid,bookingid,startime,endtime,startdate,enddate)for (startime,endtime,startdate,enddate)field i`m using textSo now,i want to make a search on the (startime,endtime,startdate,enddate) field,from the datetimepicker,and that i enter to gain the empty room that available to book?
View 1 RepliesI am trying to change the PC's System Date/Time using the following code. Everything works but the Hour. The Hour seems to change to 9:00 AM no matter what value st.hour is set to.
I have also tried:
<DllImport("kernel32.dll", setLastError:=True)> _
Public Shared Function SetSystemTime(ByRef theDateTime As SYSTEMTIME) As Boolean
End Function
[Code].....
I need to convert the current date to unix but if I run my app in europe or in the US, I need to get the same unix time.To converto to Unix is not a problem, what I can't get it working is how to set the convert the curretn date and time to a specific timezone before converting to unix.
View 1 RepliesI want my string s = "110218055515" converted into the datetime format as dd/mm/yy hh:mm:ss.
View 2 RepliesI'm getting date-time from a source as 20110731183330. I want to convert it to '7/31/2011 06:33:30 PM'. Is there a one line code for the same in vb.net?
View 3 RepliesI have a string variable that contains "19:39:43", I would like to convert that to a date object. When I try I get a formatexception was unhandled error during debugging. I want to convert it to format of hours:minutes:seconds but cannot see how this can be done..
Code snippet:
Dim strtxt As String = "19:39:43"
Dim Datevar As Date = Date.ParseExact(strtxt, "HH:mm:ss tt", Globalization.CultureInfo.CurrentCulture)
I tried just "HH:mm:ss" but not sure if that worked...