Update Database Field Value Automatically When Another Value Is Added Elsewhere?
Mar 10, 2012
I have two tables: HolidayRequests & HolidayEntitlementWithin the Holiday Requests I have 1 field:DaysWhen a staff member adds a holiday request it is stored as a number in the holiday requests table in days field (there are multiple requests with different days)
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Mar 13, 2012
I'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:
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Feb 7, 2011
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...
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Jan 15, 2012
I have a form where i can enter new product. In that same form i have listbox where i show the current product from the database.
I want to know how to update that listbox as i enter new product into the database so that user can see the current content of the product table.
my code to load the listbox
Try
Dim ds As New DataSet
Dim cmd As New OleDbCommand
[Code].....
To sum it up, what i want is something that will refresh the current display of the listbox so user can see the actual and updated contents of the database.
with the above code, the newly entered product/data can only be seen when the program is closed and reopened again. Which is not very convenient.
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Jul 29, 2010
Display a Dialog Box that asks for some user input. Take that input and add a new entry to an access datatable. Refresh a List Box that displays the Keys from the datatable. Steps 1 and 2 work just fine. After the following method is executed (without closing the program) I can open the Access Database and the data has been stored to the datatable.[code]...
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Mar 15, 2012
What I am trying to do? update a database field with a richtextboxfield.
I have tried using Dim range1 As New System.Windows.Documents.TextRange(RichTextBox1.Document.ContentStart, RichTextBox1.Document.ContentEnd)
But this did not work for me either.
CODE:
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May 13, 2009
I have written this set of code that will update an Access Database row: (Total_RAM, Model, etc are just string variables)
Dim Record As InventoryDataSet.InventoryRow
Record = frmMain.InventoryDataSet.Inventory(0)
Record.BeginEdit()
Record.Total_RAM = Total_RAM
Record.Model = Model
[code]....
My problem is the fact that one specific record called "Record.Asset_Tag" exists in the database, but I don't want to programically alter it. That will need to be typed in manually. However, even if I don't put in the line "Record.Asset_Tag = ...", it will overwrite anything in the field with a blank.How do I keep whatever is in the database unaltered in the Asset_Tag column?
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Sep 27, 2011
I want to update contacts in a database from VB, where the field value is N/A. The following will update all fields where phone = @Phone, however I want to update those fields IF they have N/A in already. Can it be done in SQL?
[Code]....
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Jun 1, 2012
I have the following code to try and change a field in a Microsoft SQL database. I don't get any Exceptions when processing the code but I use the Microsoft SQL Management Studio to view the data before and after but the data does not change.
myDataAdapter.SelectCommand = New SqlCommand
myDataAdapter.SelectCommand.Connection = New SqlConnection(myConnectString)
myDataAdapter.SelectCommand.CommandText = mySqlString
[code]....
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Feb 8, 2010
I have a datagrid view containing a customer list that if if double click on a row it brings up a customer maintenance window. Once I hit a save bottom on the second form how can I automatically update the database, refresh the grid on the initial window but remain on the same row on form1 that I double clicked on in the first place. Currently I am re-loading the datagrid on the initial form with all the data once I close the second window down.
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Jul 16, 2009
I have two buttons on a form , clock in and clock out, and i have two fields in an access database, fldCheckIn and fldCheckOut, when i click the check in button i want it to get the current time and set it to the field in the database
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Oct 11, 2010
Update an access database field using vb by clicking on a datagridview row?
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Aug 14, 2010
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?
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Nov 21, 2010
I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page:
<asp:SqlDataSource ID="msgUnread" runat="server"
ConnectionString="<%$ ConnectionStrings:edinsec %>"
[code]....
As you can see I was playing with WithEvents but that didn't seem to help. In the above code all I was trying to get was some kind of reaction to the clicking of a checkbox - but nothing happens (no errors, either).
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Nov 11, 2010
I'm using a MS Access 2007 database. I modified the field definition of one of the fields in a table, it a text field and I change the maximum length from 40 to 150. I have a data source in my app that contains this table and many others. I refreshed the data source but the change didn't take affect. I went through configure option but the change still didn't take affect. It gives me this error,
The value violates the MaxLength limit of this column.
If I add/delete a database field the data source is updated when I go through the configure process. I finally just deleted the table from my data source and then added it back.
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Aug 18, 2010
I am creating a very simple Voting System, that will be use on electing new set of officer in a teacher cooperative...
So I have to create two separate program, a Server Program that will manage all the information in the election and a Client Program where voters will vote their selected candidate...
The election officers wanted that the Server Program will display the Voting Results at real time... So when the Voter finished voting, The Voting Result displayed by the Server Program will also be updated every time the Client Program Insert the data to Database....
An action listener in Server Program that will execute if new data is inserted in a Table in the Database made by the Client Program...
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Sep 10, 2011
When new record is added, I want the vb to look at the last record in the database, look at its id, add 1 to it (+1) and generate a new number and display it in the IDTextBox.
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Mar 6, 2009
I've got a groupbox on my form. I changed its font and fore color. The problem is that when I add a button or any other controls like a label, checkbox etc to the groupbox, the controls are automatically changing their fore color and font to that of the groupbox. How to prevent this?
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Mar 5, 2009
I added a groupbox and changed its heading's font and fore color. The problem is that, when I add a button to this groupbox, it automatically changes its font and fore color to that of the groupbox!How to prevent this from happening?
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Apr 27, 2011
Everything was working fine but suddenly started getting this error. I have the following code
ReportName = Application.StartupPath & "" & ReportName & ""
Dim ReportForm As CrystalDecisions.CrystalReports.Engine.ReportDocument = New CrystalDecisions.CrystalReports.Engine.ReportDocument
ReportForm.Load(ReportName) - I get error at this line
The path & other things are right. Till yesterday it was working fine & now I started getting this error, the only change I made in the report was I added a field.
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May 1, 2012
I am working on a project for a class, and am having trouble getting my program to automatically calculate the subtotal every time an item is added to the shopping cart list. I've tried sub procedures and functions, but I can't seem to get it to work.
[Code]...
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Jul 14, 2009
I am using Visual Studio 2005 (Visual Basic) and MS Access 2003 I am trying to build an application in the lines of the book "Doing Objects in Visual Basic 2005" by Deborah Kurata. So, I have a Data Access Layer (DAL) Class Library that is separated from the business logic layer (business objects) Class Library. I try to add a new business object such as a "Customer" to the Access Database, where the "Customer" table has a PrimaryKey "CustomerID" which is an AutoNumber field. I am successful in writing the values to the database, but I can't figure out how to know the "CustomerID" of a newly added "Customer" so I can populate the business object with the respective values.
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Feb 16, 2011
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
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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 7, 2012
I had a functioning datagridview that was created from VB2010's datasource by clicking on a table, picking datagridview and dragging to a form. I changed three of the columns of the grid to comboboxes bound to different tables. If I change a value in a column (not a combobox column which still shows the value from the original table), I receive InvalidOperationException was unhandled on Me.TableAdapterManager.UpdateAll(Me.MasterDataDataSet). What code do I need to add if I change columns to comboboxes?
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Jul 8, 2011
Iam using sql2005 database in vb.net2005
my table,s name = tab1
I have 3 fields
1- ID = auto number =primery key
2- IDD = number
3- name = text
now if I add 10 names in the table from (1-10) =123456789 10 then I deleted name number 6 the IDD field will renumber it self from( 1-9)=123456789 instead of 1234578910 so in reports and queries the names will appear numberd from 1 to last number with out missing numbers in the middle of numbering I use in MS-Access code which does this perfactly
Public Sub RowOrder()
Dim db As DAO.Database
Set db = CurrentDb
[code]....
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Apr 20, 2012
I have a Datatable where i added data from textbox when i want to edit selected datatable rows from gridview to eidit these values will be showing in their respected fields but when i click update button the only first row in gridview will be updated either i select first row or any other row in gridview for editing whereas i want to update the selected rows data. NOTE: I was design datatable visually under vb.net 2008 designer and the datatable have not any primarykey i am using following code under btnupdate event
Dim i As Integer
StoreDBDataSet.Tables("DataTable1").Rows(i).Item("Code") = txtCode.Text
StoreDBDataSet.Tables("DataTable1").Rows(i).Item("Description") = txtDescription.Text
[code]....
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Aug 14, 2009
I'm making a web browser and want the url bar to update when you click a link, like it does in firefox or IE.
Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
url.Text = WebBrowser1.Url
End Sub
When I try to compile this I get the error
Value of type 'System.Uri' cannot be converted to 'String'.
Anyone know how I can convert this so that it works?
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Oct 13, 2011
I am getting an incorrect repsonse after an update to a table. In my RowUpdating event I have the following code which builds an Update Parameter to call an SP to update a table. I must be doing something wrong but everything runs fine. My rowsAffected variable reports 1 after the update, but the table never gets the data.[code]I found a solution that is working. On the original DataSource for the update command I needed to add the following.[code]This in essence allows the original data source to call the SP. Note: that the command type needs to stay as TEXT not Stored Procedure as one might think.
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Feb 17, 2010
I was trying to add a worksheet to my current active workbook. I had misreferrenced the command and got an exception thrown. OK, that happens. But what happened next kinda threw me for a loop. Now, and it still happening, everytime I use F10 step I get a new worksheet added. It is the strangest thing. OK, I gave up trying to figure out this problem. I solved it by selecting the entire form1.vb file and pasting it into a new application.
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