When I add, update or delete a record using DataGridView, which events should I use for applying these changes? I'm binding DataGridView's DataSource property programatically. I only connect it with a DataTable. I'm not using a BindingSource. Is this the reason why doesn't DGV apply record changes automatically?
View 1 Replies
Between testing sessions on my windows service, I'm changing code (little tweaks here and there). For more detailed debugging, I've had the application send messages to a text file everytime it does something (executes a new procedure, catches an exception, etc).
I've been doing this for a while, but ever since yesterday, it appeared that the new code wasn't being used. To test this, I changed the name and location of the log file that the service would use, and re-installed it shortly after a new successful build. As it turns out, the service is writing only 1 message (about a timer being started - which is only supposed to happen after it's logged the start of the service) to the old text file. It looks to me like my service isn't using the new code in my Service1.vb file, Like the old code has been cached or something, and the service is installing from that.
I have a windows form I want to show in two languages. When the user clicks a language button it switches to the other language.
It works fine, when you click it all the labels change to the other language.
Only problem is labels inside a group box do not change.
[Code]...
I am currently developing a service using the SharePoint 2010 Client Object Model to programmatically upload Excel worksheets to a Drop Off Library and then set the properties on the file. This process is working well. However, the Drop Off Library is governed by Content Organizer Rules that aren't being applied to the uploaded file. I have examined every property I thought I could have missed: [code] What's most frustrating is that if I edit the document properties using the Web UI and check it back in without making any changes, the file is moved to its final location. What might I have overlooked that is preventing Content Organizer Rules from being applied to newly uploaded files when using SP2010 COM?
View 2 RepliesIs there a way to have a record automatically save like in Access? I would like to save the record before going to the next record or before exiting.
View 2 RepliesWhen 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.
View 5 RepliesI have a DataGridView that loads an Access database when the application starts. I also have a bunch of text boxes that are bound to the same database. When you click on a row in the DataGridView the text boxes display the data for the record you clicked on.. perfect so far... now when I want to add a new record..
I do...
BindingSource.AddNew()
This removes all the data from the textboxes and I start typing away.
When im done I hit a Save button with the following code.
BindingSource.EndEdit()
It removes all the data from the text boxes but never saves to the database!
I have ran into a problem that i cant get my head around, I have the following code(see below) this all works fine if there is a imgID ='5'but if there isn't a record in the sql table with the imgID 5 then i get the following error Indexoutofrangeexception was unhandeled, there is no row at position 0 which just tells me that no record exists. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Using conn As New System.Data.SqlClient.SqlConnection("Data Source=localhost;Initial Catalog=ImageGallery;Persist Security Info=True;User ID=mbish;Password=mbish") 'insert your connection string
conn.Open()
Using cmd As New SqlClient.SqlCommand("Select Imagecontent From ImageCollection where imgID ='5'", conn)
Using dr As SqlClient.SqlDataReader = cmd.ExecuteReader()
[Code]...
I'm using a DataGridView that gets its data from table in Microsoft Access, one of the fields is a Short Time type record (e.g 16:00) but when the DataGridView is loaded it shows the record as "16:00 12/31/1899" and never shows only the ShortTime.
View 1 RepliesI am using a not equal operator <> in my sql statement but it doesn't retrieve any record which is not equal to the selected date.
CODE:
Command = New SqlCommand("SELECT * FROM [Products] WHERE [ParkingStartDate] <> @StartDate", myConn)
Command.Parameters.AddWithValue("@StartDate", StartDate1)
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]....
I hav a web service which pull records from a database and I am hosting these services in IIS which works fine but I am trying to retrieve the record and display the record in a listbox displaying the time field as the text for that record.I have created the following function
public sub get_data()
dim dt as new data.dataTable
dim service as ws webservice.webservice
[code]...
I am trying to check a record in database before inerting a new record here is my code but problem is when i enter a names first alphabet it imediatly populate massage. i want to check it after entering whole name
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Try
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" &
[CODE]...
I am trying to change the background color of a tooltip
I am using tooltip.backgroundcolor = color.colr
No errors but thecolor doesn't change
I use Visual Studio 2003, VB.net, NetFramework 1.4 and Windows XP I have been using the following Code Snippet for a number of years in both Web Services and Windows Applications. However suddenly around the 29th September 2010 it has stopped sending E-Mails from both Web Services and Windows Applications. The same problem has happened not only to my own Network but on two other Networks, one using XP as its Server and the other using Server 2003. All 3 of these are using different ISPs.
[Code]...
How do I force users to save the current record (if current record has changed) and not let user go to the next record unless the save button is pressed?
View 5 RepliesWhile I've previously many years of relational databases and procedural languages, I'm stumbling with Visual Basic. In this problem, the simple situation is that I have two files, parent and child. The primary key of the parent file (Area file) is linked by a relation to one of the two fields that makes up the primary key in the child file (Project file) (unique key is formed from 'area' and 'project'). I have the default table adapters created on both files. I have created two maintenance forms showing one each of the two files in datagrid view format.I can create some records in the Parent (Area) file, but when I try to create a record in the child (Project) file, using one of the valid key values from the Area file, I get the 'ForeignKeyConstraint [relation name] requires the child key values [actual value] to exist in the parent table' which I'm absolutely definitely sure it does.
I haven't done any actual coding for those two maintenance forms, just dragged-and-dropped the files from the data sources screen onto separate forms so it creates the controls itself. But I can't work out, if it already knows the data does exist because I can load it back in to the Area maintence form, why it can't check itself to find out the record does exist. Why does it think the record from the parent record doesn't exist? It does exactly the same thing, whether or not the database is in access or SQL Server Express. I have all the latest updates.
I have two tables Products and Categories with a many to many relationship. I am trying to copy the categories linked to one product (OriginalProduct) to another product (newProduct). The problem is when I execute the SaveChanges() method, I not only get the records in my linking table, but it also creates another copy of the categories in the categories table. I've tried this in many ways but here are the last couple that I've attempted:
' Copy Product/Categories
For Each oneProdCategory In OriginalProduct.Categories
Dim relatedCategory = _productContext.GetObjectByKey(New EntityKey ("ProductInfoEntities.Categories", "RecordId", oneProdCategory.RecordId))
[code]....
I have a problem with my program, and it's really bad because I need to burn it to disk within 12 hours and I can't get it to work: If I create a record, add information to it and click on Next Record, the ID, Status and Notes boxes content will change but the rest of the controls contents are carried over to the next record and I don't know why or how. It was working perfectly but now it stopped and I never done anything.
View 8 RepliesI am handling many of the BindingNavigator tasks (MoveFirst, MoveNext, etc.)in code to ensure that I always ask the User to save his changes.
The one area I am have a problem is PositionItem. I would like to sense that the User has changed the Record Number in the BindingNavigatorPositionItem, handle my record Update, and move to the Record Number the User entered I have looked all over and have not found any way to do this.
I have created a project that has an add a new record, edit record and a search form, that has multiple text, combo boxes and is working great.Last nite I have added a checkbox under my add new record form and i am saving the checkbox value to my database, so far so good. I would like to be able to search any record that is mark with a checkbox to show up in my search screen when I do a search: [code] The problem that i am having is that now that I have added the code to my project to search for the checkbox field in the search screen and if I leave everything blank and click on the the search button I get no record found. I expected to see all that data, since I have nothing selected. Now if I click my checkbox, as soon as I click on my search button I see that two records that I have added for my test.
View 1 RepliesMy database : table1
ID FIRSTNAME AGE
1 Sumit 22
2 Sanjeev 23
i have gridview 1 and textbox1 and button1 i want when pages load the gridview displays the all records from table1 and also ...i i wanna search record for firstname by typing sumit in textbox1 and click on button1 then in gridview the record of sumit will be shown ..by default gridview display alll records from table1 How to do this My Selct Query is below : but it doesnot display all record ...but it can display record if you search for a particular record .
[Code]...
I have records in a database. Each record has a Picture path in it eg. "C:\Pics\Image1.jpg". I would like to display a record from my database and also the picture for that record, in a .rdlc report in vb .net 2008. i have succeded in displaying the record but just can't get the picture to show. I am using an Imagebox in the report.
View 2 RepliesI use This Code To Save Data in Table First I delete record Then Insert record
View 4 RepliesI am trying to write a system that will send an email to my Client and when my client reply I need to read the Email and push it back to proper Record for the Client.We are using Exchange and outlook, For Sending email I am using smtp with custom coding Which automatically record an email content to the Client File howerver how to read the reply as it is coming into outlook of user machine and push it back to the Proper Client record.
View 3 RepliesIm wondering how would i work with a text file. which would allow me to Read the next Record, Cut record out of the program.
View 15 RepliesI have a access database with these columns. USER_ID,COUNT,TIMES
Let say the current record is this:
USER_ID,COUNT,TIMES
STEVE20,24,1.5
Now I want to updated the current count record and times, but before updating I want the old record to be added to the new record. What should be my query?
I'm receiving the following error:"You cannot add or change a record because a related record is required in table 'FORN_NIB'."
I cannot understand this error fr the related record really existe on the FORN_NIB table. It is even picked up from there. Here's the code where the error occurs at the .Update instruction:
HTML With rst
.Open("DADOS_RECIBOS", conn, ADODB.CursorTypeEnum.adOpenDynamic, ADODB.LockTypeEnum.adLockOptimistic)
.AddNew()
.Fields("NUM_FORN").Value = Me.TextBox1.Text
[Code]...
Basically, I am making a booking system. On one of the forms, you can: Add, Edit and Delete a record by using the selected index. I can do the Add and Edit part fine but some problems are occuring when I try to delete it. What I'm trying to do when deleting is, copy all the records except the selected one and then copy it back into the original file again.
[Code]...
Visual Studio Pro 2010 Win 7 64 bit running bootstrapped to a MacBook Pro i5 (blasphemer!!!) works really well though!!New to vb.net, have used vb6 for several years and finding the transition interesting to say the least.I have an access database with a vb.net front end all auto bound by the connection and binding wizards (I know, I know...) Not too complicated, but a simple 2 table related db. On the form the parent table shows customer details with the child table related and displayed by datagrid. I have a field in the child table for images and I have figured out how to store and retrieve images to the db. I am using the datagrid.rowheadermouseclick event to reload the picturebox on the main form as I click down the child table datagrid. Now I need to be able to click the bindingnavigator, go to the next record and have the program reload the image for the next child record. The problem is I'm trying to use an event from either the datagrid or bindingnavigator to reload the picturebox in the child table after moving to the next record, but all of the events I am trying are firing before the next record is moved to and therefor the logic I'm using to retrieve the image from the db is not working.
Anyone with an idea on how to move to the next record and then run my logic to populate the picturebox? What events might I use that fire after the next record has been populated? I know this is probably not that hard, but I have been racking my brain all day now.
