I've got a SQL Database with the field type Date, when i load any data such as 06/04/2010 into my masked textbox it shows as 64/20/10 (without the leading zero's so the date shows wrong.
Also how can I set it to be dd/mm/yyyy and not mm/dd/yyyy?
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".
I am trying to update a SQL Server database Date field.When the user enters the date they enter 02 Oct 2010.When I pick up the DateTimePicker.Value it is 10/02/2010 00:00:00. I need to get the value to read 02/10/2010 00:00:00 How do I get the value to be in this format?
View 7 RepliesHow could you, update the fields on database if its data type is Y/N, and the method of updating is a checkbox??
View 1 RepliesHow can i retrieve NULL Field [ Date Out ]in sql 2005 database to a Grid View in ASP.Net. I need this field to be edited by the user.
View 2 RepliesHow can input number to database where my field in database data type money.[code]...
View 5 RepliesI can save my data to access database and in the access database field I set it to date/time.But problem is when I get the value out from the database.. the format is always month/day/year hour:minutes:seconds example today: 5/2/2011 12:00:00..How to get the value into listview becoming May/2/2011 without the hour..Here's my code to get it from database ListView1.Items(i).SubItems.Add(dt.Rows(i)(14).ToString).The second problem is.When I would like to edit, how can the datetimepicker get the listview value ? [code] info: using access 2003 (.mdb) the Date of Birth field has been set into Date/Time.
View 2 RepliesI am trying to edit a dbf table. I would like to be able to rename field headings and change the field type, ie string or dbl, and the size of the field. is this possible to do with vb.net. I have connected to the dbf file but after that am lost on what to do.
View 3 RepliesI'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].....
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.
View 8 RepliesI 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?
I am pulling data from a local MSSQL database using a stored procedure, then send the data to a web service. Every part of the component works well except for a pesky problem will a DBNull being returned from the DataRow field, when I know that the field is not null and has valid data. The database and associated INSERT statements that add to this field are designed to not allow NULL entries. When I debug break the program on or right before the line that throws the error I see that the field has valid data for the current row.If I add a null check to the code (as below) the operation continues as normal:
Dim dataResultsTable = Me.myViewTableAdapter.GetData(int)
For Each myDataRow In dataResultsTable.Rows
If worker.CancellationPending Then
[code]....
Why is the read operation returning DBNull instead of the data in the database?
EDIT: Just to be clear, the operation does return the proper data, but the data is not being saved into the variable.
There are lots of questions about this but I've not been able to solve my problem using the answers to any of them (after many, many attempts..)
I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page.
I want to change the DoNotMail boolean value represented by a Gridview checkbox and automatically update in the database if the checkbox is checked from 0 (False, Will Mail) to 1 (True, Won't Mail) here is the code I used. [code]...
is it possible to do a two way sync on the entire gridview when the user hits a button so you don't have to do an update every time a row is changed? because the user might check the box and then check another box then uncheck a box and it would be a lot of updates...
I created a local Database in VB2008 with 4 tables, the problem is that I have a textbox in one table and a combobox in other table and I want that the information that I put in textbox appear after in combobox from the other table... that's possible?
Table: Filmes ... Field: NomeTextBox
Table: Tempo de Aluguer ... Field: Nome_FilmeComboBox
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
View 1 RepliesI am currently working on a custom data type, and wanted to implement a = operator.
I data type is a nullable date that returns a string value if date was supplied.
I want to allow the variable to be set like this
Dim nd as New NullableDate nd = Today Does anyone know how this can be done, or can anyone point me in the right direction?
I'm trying to get datetime value but here is issue with nullable datetype.
Public Function GetDate(ByVal kodg As Integer) As DateTime
Dim g = From dt In db.xDates _
Join f In db.xGrafiks On dt.КодД Equals f.DateKod _
[Code]....
I'm getting the error "Conversion from type 'DBNull' to type 'Date' is not valid."here's the line generating the error.
dtReady.Value = dSet.Tables("Db").Rows(Inc).Item("Fixed_Date")
I'm using a date/time picker control and sending the db value to it. I know that the value is null, but I don't understand why the Picker can't be blank. Is there a way to let it be blank? Or should I set up a way to check for nulls and assign today's date or something just in case?
When I close my form without saving I want to check if the data on my form has changed since the last time I saved the data.This peace of code, which I included at the bottom always worked fine.Except when I compade a DateTimePicker with a null value in the db.Than I get the error "Conversion from type 'DBNull' to type 'Date' is not valid."Probably on this peace of
Me.dtpVrijeDatum01.Value.Date <> CDate(reader("VrijDatumVeld01")).Date Or
Me.dtpVrijeDatum02.Value.Date <> CDate(reader("VrijDatumVeld02")).Date Or
Me.dtpVrijeDatum03.Value.Date <> CDate(reader("VrijDatumVeld03")).Date Or
Me.dtpVrijeDatum04.Value.Date <> CDate(reader("VrijDatumVeld04")).Date Or
Me.dtpVrijeDatum05.Value.Date <> CDate(reader("VrijDatumVeld05")).Date Or
The total code to check the changes is:
Private Sub CheckForChanges()
LeesCheckboxWaarde(Me.chkFacAdrIsBezAdr, intCheckFacAdresIsBez)
LeesCheckboxWaarde(Me.chkPosAdrIsBezAdr, intCheckPosAdresIsBez)
[code]....
I'm storing dates intoa table like:vb.net "INSERT INTO myTable (datum) VALUES ('" & Convert.ToDateTime(dgvrow.Cells(0).Value).ToString("yyyy/MM/dd hh:mm:ss") & "'" & ")", conn) This works perfectly. After storing the dates I need to load /show them into a MonthCalendar. This is where the error occurs.
[Code]...
I have a query in my DAL that results 1 item, a date. It's either a date or null. But I get an error when the value is null. Conversion from type 'DBNull' to type 'Date' is not valid. Query
[Code]...
I am getting this exception from the following VB.NET code for only certain months: System. InvalidCastException: Conversion from type 'DBNull' to type 'Date' is not valid.It happens on the line:if CDate(dRow("CompleteDate")).ToString("d") = arrWeekYear(i, 1).ToString("d") Then.If I understand this correctly, then the problem is I am trying to compare some NULL values for CompleteDate to a non-NULL value.However for some of the more recent records, it does not. But I am able to get output from the T-SQL query with same date range and there are no errors; it runs quickly also. And I examined this T-SQL query for both "Date_ Completed" and "Review_Date" NULL values, but either way,"CompleteDate" was always = NON-Null value.So I do not understand how this is happening.[code]When I add this line above the error-causing line above, my report times out for these months.If Not dRow("CompleteDate") Is System.DBNull.Value Then
View 2 RepliesI am creating a database in VB.NET for a movie rental place. I currently have three forms;
Member Information
DVD Information
Borrow DVDs
What I would like to do is when I am viewing a member's details, if I click a button 'Borrow DVD for Member', the member's ID number transfers over to the Borrow DVDs table in the Member ID which also would hold some information from the DVD Information table, but I'm sure if i can figure out how to do this firstly, I will be able to apply the same rule and work it out myself.I have been trying to use a query statement like;
INSERT INTO [Borrow DVDs].[Member ID] [IN goodstuffvideos.mdb]
SELECT [Member Information].[Member ID]
FROM [Member Information]
but that has been coming up with error codes and completely not working.
Borrow DVDs table fields are: Borrow ID, Member ID, DVD ID Number, Hiring Fee, Borrowing Limit?
DVD Information table fields are: DVD ID Number, Title, Rating, Hiring Fee, Borrowing Limit Member?
Information table fields are: Member ID, Family Name, Given Name, Address, Town/Suburb, Postcode?
The error coming up is; Error in INSERT statement. Unable to parse query text.And under that it says The query cannot be represented graphically in the Diagram and Criteria Pane.
I am using visual studio 2010. I have a text box bound to a sql datetime field.I have to be able to either set or clear the text box. I can set it to any date fine, but when I try to clear it I am unable to save the record.i am using the binding navigator to save.
View 5 RepliesI have an ASP.NET application that crashes when a null date value is returned.
The code line is:
excelWorksheet.Cells("A" & xlRowCounter).Value = IIf(IsDBNull(dRow("sysdate")), "", Format(dRow("sysdate"), "MM/dd/yyyy"))
Error message:
ERROR: System.ArgumentException: Argument 'Expression' is not a valid value.
How would I check for a null date, and replace it with "" in my app ?
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?
I have a simple VB program that is using the IBM ADO .NET data provider. I've set this up so the data is used by a data adapter and fed with a standard DS. I've manually done the commands to acheive this in code. I tthen use the DS as the datasource for my datagridview. I'm having one issue and that is with a date field. It uses an "old" IBM date of CYYMMDD, century, month, day date in a numeric field. So my dates look like this for instance in the datagridview:
1100804
My question is this, is there any easy way to format them into mm/dd/yy after the DS has been put into datagridview but not yet displayed?
I have done this using the dataread object and can work out a format that way, but I'd have to recode what I already have done.
Some code:
' use the command & connection to fill the data adapter
adpt.SelectCommand = New iDB2Command(cmdText, Db2ConnectOSLD1F3)
' fill the tabel adapter
[Code].....
i have a maskedtextbox which will accept only date in the format of "DD-MM-yyyy" no i want to insert this date in my db. i have done this successfully.
Now i want to insert null value in through that maskedtextbox .
My regional settings are set to dd/mm/yyyy.I'm trying to update an access table from a datagridview.When datein in the Rate_Per_Period table is #31/10/2009# the update works perfect.When datein has a value of #1/11/2009# the update doesn't work.[code]
View 7 Replieswhen i am trying this Date.Compare(Format(DateTimePicker1.Value.Date, "dd/MM/yyyy"), Convert.ToDateTime(dr(1))) < 0 it gives an error message as "Conversion from string "23/06/2011" to type 'Date' is not valid."where dr(1) is database field in text format as 29/3/2011 (dd/mm/yyyy) .
View 3 Replies
