Using VB.NET I want to display the date in datetimepicker from the database.
Code.
cmd= new sqlcommand("select date from table1", con)
dr = cmd.executereader
while dr.read()
[code]....
But it showing error as specified cast is not valid How to get a value?
How to allow the user to select the date from the DateTimePicker and store that selected date ,month and year in the database table?
View 3 RepliesI want to get date from database to my datetimepicker, but I got problem
here is my code.
Dim sStatement As String
sStatement = "SELECT Transactions.RentDate " & _
"FROM Transactions INNER JOIN TransactionsDetails ON Transactions.[TransactionID]
[Code]...
No data exists for the row/column. But I have many data... and the second time i click the button
The connection was not closed. The connection's current state is open.
How to allow the user to select the date from the DateTimePicker and store that selected date month and year in the database table?
View 3 Repliesi can't get DateTimePicker to insert into Access databse. I've tried all the suggestion i can find from this forum, so i'm thinking my problem is different?my table has a column date which has a Date/Time format
my code
Dim cmd As OleDbCommand
Dim sqlstr As String, ans As Boolean
Dim mydate As DateTime
mydate = Me.dtPickerT.Value
[Code]...
how to save nul Value of DateTimePicker in the Database note: i make dtp become null value like this
dtp.customformate=" " single space and the code to bind
dtp.DataBindings.Clear()
dtp.DataBindings.Add(New System.Windows.Forms.Binding("value", Me.GetAllCrimeDataBindingSource, "Date", True))
i am using Visual Studio 2008 and VB.NET 2008 and SQL Server 2005 as the database. I just finished designing & writing codes for a customer information and , however after it has been connected to the database only one of the datetimepicker can be click, and the rest of the function including in the form are not working!it seem that the form stuck and NOT responding. i cant even close the form (X button), so i have to stop the process using compiler (visual studio 2008), however if i press the 'Delete' button before the 'Add' button, it will successfully delete the data.. but if i disconnected the form from the database, (disabled the form_load codes [put 'quote']) the both of datetimepicker will work and able to view the date interval (after pressing the 'Calculate Period' button) in addition how to make it appear automatically in screen without using the button? below are the code, I try to make some other form.. but it is still the same
Code:
Imports System.Data.SqlClient
Imports System
Imports System.Data[code].....
I have an accounts program. My cash book shows data based on date picked from DateTimePicker. Cash book is not entered everyday. I want to make my datetimepicker so that based on dates found in the database, it changes colour or enable / disable some dates, for which cash book has been entered. How is it possible?
View 6 RepliesI am trying to add a record into the database wothout much success. sometimes it works and sometimes it returns error "overflow exception unhandled".And even the database is not all the time updated. How do you add the Datatimepicker value into the database...?[code]I'm using VS 2008 and MsAccess as my database connected through the database connection wizard
View 2 RepliesHere's a bit of code
Private Sub QhBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles QhBindingNavigatorSaveItem.Click
Me.Validate()
[Code]......
How to use a DateTimePicker to query a database table. Basically, when a day is chosen on the DateTimePicker, I want all the database entries for that day to be populated on Datagridview. My Datetimepicker name is datetimepicker1. The datagridview name is dgv. The database table is called QCAuditing and the row in the database, that has timedate, which I want to use for query is called date. I was wondering if someone can point me to the right direction here.
View 1 RepliesI have an issue with date format in my SSRS. I am saving date from DateTimePicker to database. From there I am taking display in my datagridview using following
dgv.items(0,2).value=Format(Cdate(dsSaver.tblInv.rows(0).items(0)),"dd-MMM-yyyy")
This displays it correctly (04-Nov-2011) but when I take date from the same database to my SSRS using
="Dated: " &Format(cdate(Fields!InvDate.Value),"dd-MMM-yyyy")
It displays it like 11-Apr-2011.
I have tested all winforms fare displaying it right but all SSRS are displaying it wrong.
OK, before I throw my laptop out the window... I need to insert data into my Access Database from my VB.Net2005 application. I have written and re-written this code, trying everything I can find from the web and I've had no luck. I'm getting a {"Data type mismatch in criteria expression."} error on the ExecuteNonQuery line - I'm fairly certain that it's the DateTimePickers, as I rem them out and the code works fine. However, I've tried everything - changed the column in my database to Text, changed the .Value to .Text, .Value.ToLongDateString, and every time I'm getting the same error. One of the things I read on line was that I need to use parameters in order to pass the DateTime - I need to pass the Date and Time (date format is not important, but I require the hh:mm:ss format for the time). The fields currently default to the current date/time which is perfect, but I read that depending on how you pass the data, you may run into problems if the user does not pick the drop box (leaving it as the default).
[Code].....
I need to pull from an access database to populate a combobox. Then from there I need to have a second combo box populated depending on the selection in the first box. My thought of an example would be a website that is setup for selecting car make, modle,year...can that be done in VB?
View 1 RepliesI am developing with VS2010 VB.Net and a SQL '08 dbase. I have a DateTimePicker control that by default displays the current date. If you ignore the DTP control and accept what the default is and save the record, in the database table, the value for the date is 'NULL'. I delete the record out of the database and re-create the record in the UI, but this time, I click on the DTP control and actually click my mouse on the current date or any date and then save the entry and it saves to the database properly. I guess what I am after is if a user instantiates the UI form to perform data entry and accepts the current date in the DTP control without clicking on the control, the value is saved properly to the database.
View 1 RepliesI have a datetimepicker but the custom format is set to HH:mm tt so that I can get eg 11:20 AM
this value I have stored in database with the help of Label4.Text = DateTimePicker3.Value.ToShortTimeString.
How to set database to null if datetimepicker.check is false?what is the code other than empy string ""?[code]...
View 4 RepliesIm trying to use DateTimePicker function and save the date to an access database. Everything is working somewhat how I want it to but not 100% yet. Here is my problem. When the program is running if I click on the datetimepicker and select a date and click my save button the date IS saved to my access database as it should.
but if i run the program and don't ever click on the datetimepicker (because it is already on the correct current date) and click my save button the date doesn't get saved to the access database. The closest I have gotten was to enable the ShowCheckBox option, If i run the program this way and select the check box but dont select a date then it will save the date to my db.
But I really need it to be able to save the date to the db without the user ever clicking on the datetimepicker. Is it just a simple line I'm missing? Im pretty new to this but Ill try to explain anything the best I can if you have any further questions for me.
I want to populate a combo box but not using a database
e.g. combobox displays
red
white
blue
But want I want is if a person chooses red I want to pass back the number 1 value to a backend database. I'm able to populate a combo box with the colours but not sure how i 'grab' the value to pass back
Dim colours as string[] = new string[] { "red", "white", "blue" }
m_cmbColours.Items.AddRange(colours)
What I want is this
value Colour
1 red
2 white
3 blue
Combobox just displays the colours and when chosen in the combo box I grab the value corresponding to colour chosen.
I've given up on my harder stuff and have simplified it to something else. There are no errors that pop up now but the list box doesn't populate! I took the code from a book and there's a data adapter, data connection, and data set on the form already (they're not named in this code though, since the book didn't say to). When the program opens, the list box has a line of text in it and the list box doesn't fill with the right items.
Private Sub EditStock_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Try
Dim dsitemlist As New DataSet
Dim itemlistadapter As New OleDbDataAdapter _
("SELECT ItemName FROM Stock", ConnectString)
[Code] .....
And here's what shows in the box.
system.data.dataviewmanagerlistitemtypedescriptor
I'm stuck, can someone teach me on how to populate my listview using database.
View 2 RepliesI need to create a search form where a combobox populates with names then the user clicks a name and the textboxes in the form are filled with the correct data for example txt_Firstname txt_last txt__nameage would all be filled with the right data from access.
I already have the combobox sorted meaning i can successfully see First names in the combo box so now all i need is helping with clicking a name in the combo box and the dataset being populated in the text boxes heres the code used to populate the combo box:
Private Sub Search_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
dbprovider = "PROVIDER = microsoft.jet.OLEDB.4.0;"
[Code]....
I populate a datatable from a database. The table is sorted by the first column.
Then I add some new rows to the table. After that I sort the table with pgds.Tables(0).DefaultView.Sort = "firstcolumnname"
The new added rows are listed after the originally ordered rows and not in the right order.
I've been working on this for three days now and I can't seem to get my listbox to populate. I'm connecting to an sql database. Where am I going wrong? Dim cmd As New SqlCommand("SELECT DISTINCT natureport FROM rates ORDER BY natureport", conn)
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I am trying to learn how to populate a tree from a database, I did this same thing back in Vb6 and am trying to learnhow to do it in VB.Net, but I am having trouble with the code. From looking on the web I have piced this together, but I think it may be far off. It just jumps out put leaving the tree blank; and it gives no error message. I put in a try error catch and it cannot convert the data to a double, but even if I take this out it does not work. It is stuck at the line with: dr("CustomerID") <> hID I was using this to check for a parent node, I can take it out, but it still does not work; I am afraid that I am be way off here. I am using the Nothwind database.
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how to populate a treeview from a SQL datbase. I have been looking on the web but I have not found a lot and wwhat I did find show some things that, like child nodes that I cannot find. Basically I am pulling orders from the Northwind database and want to have a branch with an order and off this branch the with the ID of the order details. So when the they click on the order node it expands to show the orderdetail ID.
I get the a branch, weiht the code below, with the order IDs but cannot get the child branch.
my code
Public Class Form2
'Dim TreeView1 = New TreeView
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
populate values from a database(Access) in to vb.net form. after selecting a field from first form , the next form should display all the parameters used in the selected field from the data base. Also if do editing it shppuld be updated in the database.
Public Class Editdetails
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim cn As New System.Data.OleDb.OleDbConnection[code]....
I have 3 labels I want to populate with info from my database. I have a SELECT statement that works for only one piece of info but I need it to include the other 2 as well.
I have 3 labels: Current, YTD, and MTD My select statement is working for YTD but I don't know how to write the SELECT statement to include the others.
[Code]...
This is my GET Method to get my data from my DataTable
Private Function GetData() As PagedDataSource
' Declarations
Dim dt As New DataTable
[code].....
Im new to vb.net and would like to know the very basics on how a datagridview works? how does it populate data from the database? what process does vb follow to update this datagridview? I'm trying to get my head around the following terms and need some explaining how they work and how they are linked? if possible, is there a link to a diagram that explains this?
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