I have been a systems admin for some time and my new employers are forcing my hand into programming. I am currently Trying to write custom software that interfaces with our Advantage Database. I have the data source and connection opening fine. It seems that All of the advantage developer classes are working correctly. Here is a link for adv advantage classes: [URL]..The problem I have is I want to query advantage... then place that query in a data set.., then display the results in datagridview on a form (just trying to see how the tools work) it seems that everything works without errors except I am getting nothing on my datagridview (stays blank after execution.
When I click the Add button to save new form information to the database the form doesn't show the new information unless I close and re-load the form.
Public Class WeightHeightPopup Dim WHcon As New OleDb.OleDbConnection Dim dbWHProvider As String
i have a problem with viewing a dataset's table in my program code check out the error that exists when trying to fill a instantiated tableAdapter below: [code] The Undo operation encountered a context that is different from what was applied in the corresponding Set operation. The possible cause is that a context was Set on the thread and not reverted(undone).
I have some code in my ApplicationEvent.vb to handle The problem is that I need to execute a procedure that has a dataset table adapter in it.Obviously as I want it to run in batch mode I can't have a table adapter as they are GUI based (or at least I think they are) so I am getting this error:
'V_SyncStatusTableAdapter' is not a member of 'AppName.My.MyApplication' For this code: If Me.V_SyncStatusTableAdapter.GetData.Rows.Count > 0 Then
[code]when I run my program and press this button Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles exceptionsButton.Click..I have my date range within a time that I know that my dataset should produce a result, but when I put a line break in my code here: adapter.Fill(ds)and look at it in debug, I show a table value of 0. If I run the same query that I have to produce these results in sql analyser, I see 1 result. Can someone see why my query on my form produces a different result than the sql analyser does? [code]I can also verify that the variables are passing the correct values. Can anyone please assist as to why this isnt working?
Code: Imports System.Data.SqlClient Public Class Main[code]....
and when I run my program, I have my date range within a time that I know that my dataset should produce a result, but when I put a line break in my code here:
Code: adapter.Fill(ds)
and look at it in debug, I show a table value of 0. If I run the same query that I have to produce these results in sql analyser, I see 1 result. Can someone see why my query on my form produces a different result than the sql analyser does? Also here is my schema for my two tables:
myCommand = New SqlCommand("SELECT VisitorID, VisitorName, Skill FROM tblVisitor LEFT JOIN tblSkill ON tblVisitor.SkillID = tblSkill.SkillID", myConnection) myAdapter = New SqlDataAdapter(myCommand)[code]....
then it catch an error as Incorrect Syntax near". which it points to myAdapter.Fill(myDataSet, "tblVisitor") not the Select command.
In a DataSetIf I right-click on a TablesetAdd QueryCreate New Stored Procedure. The creation will fail for me using a SQL 2008 database. "There was a Problem with the UPDATE stored procedure. The stored procedure was not created."If I "Preview the SQL Script..." copy it and run it manually it fails because it is not putting brackets around my user name. "CREATE PROCEDURE SDSDBLUESKY.UpdateQuery" Fails"CREATE PROCEDURE [SDSDBLUESKY].UpdateQuery" WorksThis is a work around because it links to this if I do manually when it gives me the preview option, and don't rewrite it. But is there some setting change in VS2005 to get this to work correctly in the first place?
i created a type dataset. added two table adapters and made relationship on the key. now i want to show the datagridview with master/detail. how i can do it?
I created a new query in the dataset designer. There are now 2 queries there. The original one and the new one.I also added named parameters in the Where clause of the 2nd query.This is the query in the new one:
Can you please explain me and/or show some good tutorials how to do it?It seems pretty complicated because visual studio usually does it all for you and that made me stupid and not to do anything about it.Things I don't know to do in code but I know VS does it for me:
[Code]...
I'm sure there is a good tutorial somewhere on the internet. I'm okay with doing it with designer, but now when I have a situation where I can't use MDI container but tabcontrol.Other solution would be to make a MDI container out of tabcontrol. Is it posible or only other form can be MDI container.
How do you restore a dataset to the previous state before updating the database with a data adapter? I have a concurrency update problem that I believe to be caused by this. The update fails during the update and a rollback command is issued using a SQLTransaction object. However, now the rowstates of the rows that did not have errors have been changed to unchanged. So this record is no longer availible to be inserted into the database. When I updated the value that could not be null and then test the second update which runs just as the first does then I get a concurrency error. The update code is below:
I've made a dataset using the dataset designer, and I'm trying to add a column to reflect changes made to the database (added a column, nothing fancy). Is there a way to 'refresh' the dataset schema from the datasource without deleting my adapter (and all the methods and queries I've created)?
Only my local dataset updates when adding, deleting or editing records.The Source Database is supposed to update on issuing DataAdapter. Update(dataset )However, when I check my source database after running the operations it remains the same as the original.
I have opened a VB project which was created using a previous version of VB. So, it popped up the conversion wizard and it completed the conversion to 2010.
But when I tried to view the forms (using "View Designer"), it shows the following message[code]...
when i try to insert data from database into dataset using data adapter, it takes long time, i want to use hourglass but i'm confused how or when i type the code so user will know that application still work.
I though I had solved this problem, but it is back:Code generation for property 'SelectedPeople' failed. Error was: 'Type 'ECS.Entities.Persistency.Person' in Assembly 'ECS, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable.'The property on the error message is a List(Of Person) and for some reason it trigger this error, for almost anything I do, and its getting really anoying.Okanswering to the answers here is a little more information about the problem.
Yes it is during design time, it happens bascially anytime a open a form that has a UserControl that contains the Selected property in it, sometimes it happens even if I don't have focus on the form, also if I try to compile/run it happens and the message come in the form of a Message Box with just a OK, ECS.Entities.Persistency.Person is just a LINQ to SQL Generated Class, this should not matter at all to the problem, although I have added the attribute before the posting.he reason that this happens is because the Designer attempts to put the property on the Property Panel, and for that to happen, serialization happens.tryed to hide the property from the designer by using this attributes.
<DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)> _ <Browsable(False)> _ Public Property SelectedPeople() As List(Of Person)
I can do this easily with table adapter, but I can't seem to use variables in the table adapters connection string, or specify the connection string to use before "filling". Is there a way to populate the form without using any sort of binding? Currently I've used this method - a search form that populates a list box, and on the double click action I have this:
Private Sub lstResults_CellMouseDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles lstResults.CellMouseDoubleClick 'Fills Main Form Dim firstcellvalue As String = lstResults.Rows(e.RowIndex).Cells(0).Value.ToString() frm_IMT.intPendingID = CInt(lstResults.Rows(e.RowIndex).Cells(0).Value.ToString()) frm_IMT.Show()
Then When the form loads: Me.PendingTableAdapter.Fill(Me.Phone_memo_backendDataSet.Tables("Pending"), intPendingID)
I have several labels that bind to my query adapter and I need to update (not TO the database but FROM the database) as data changes on database by another application.I only need to either check data on my database that changed or reload the data.I'm using data set, table adapters and tableadapter.queryadapter to query data (tantalization) from my database.all I want is to refresh/ update this values on my controls in my windows form I'm using VB.NET on VS2010.
I created a SQL database using the migration tool.I am converting my access forms to VB.net (VS2008).I am wondering if I create a single dataset in studio to the database or do I create a dataset for each form (query)? I am trying to determine what the best solution is. Many of my forms have drop downs that are populated using queries from tables.
I have a DataGridView on a form that is being populated from a SQL table dataset by giving criteria from a previous form. I have 6 columns in the dataset, of which the last column should be combo box column containing items "Done" and "Pending". How do I make this bound column to a combo box column and display the value as well as the alternate item too in the combo box?
I have two forms....Mainform is filled with controls that are databound to a datasource.....then I have a child form that is used to edit data from parent form.......the data that is displayed on the child form uses the Filter() method of the binding source to display data only for the customer selected......
The child form has the standard OK and CANCEL buttons set up as dialog result.......after I edit the content in child form, the changes are displayed on the child form correctly......but when closing the child form and going back to the parent form the changes dont appear there unless I restart the application.....I also tried adding the tableadapter.update/fill method in the 'OK' dialog result event handler and it still doesnt work......
How can I make the changes take effect on the parent form without restarting the application?
I am facing problem in displaying VB 6.0 windows form when it is accessed from activeX control on windows server 2008 Is there any work around or any patch available to resolve this issue
