VS 2010 Is There A Limit To TableAdapters?

Sep 11, 2011

Cause I just dont get whats going on here. I have a bunch of combo boxes linked to their own Tables in my database, 14 in total. My problem is that only 13 of them work and every one I add after 13 doesnt work for some reason.So I make a ComboBox, press the arrow in the upper right corner and click "Use Data Bound Items", Then I fill in the rest as it should be. But only the "Selected Value" function actually works. I can fill in data to my other tables manually through this ComboBox, but I can not view my Data Source! If I use the same ComboBox and use any other Table it works, but not anything past my 13th table. The BindingSource is there, so is the TableAdapter. If I preview a select quary to the database it works as it should. But for not in the ComboBox!

Its driving me mad, can someone explain to me what might be going on here?

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VS 2010 Access Database + TableAdapters: Return Last ID?

Nov 15, 2010

I am using an Access database (mdb file) and for the first time ever I'm connecting to it using a bunch of TableAdapters created in a DataSet.xsd file.I added an Insert query to a TableAdapter, and now I need to retrieve the ID (autonumber) of the last inserted record. Usually, I would send a "SELECT SCOPE_IDENTITY()" query and it would return the ID, but for some reason I cannot get this to work with the TableAdapter.

I tried two methods:1. Add the SELECT SCOPE_IDENTITY() query directly after the INSERT query in the TableAdapter. This method is described in every website I found by googling my problem. Suppose my INSERT query is this:

INSERT INTO Test VALUES("1", "2", "3")
then I should now modify it into
INSERT INTO Test VALUES("1", "2", "3");
SELECT SCOPE_IDENTITY()
I also changed the ExecuteMode to Scalar.

Ok, I run this code, but it doesn't work. It gives me an error saying Characters found after end of SQL statement.Is it because I am using Access and not SQL Server maybe? I dunno... But whatever I try it doesn't work. It's not a spelling error, and I did type the semicolon to separate the two queries so as far as I know it should work.2. Add a separate Select query (selected 'Select query that returns a single value' in the designer) that simply executes this:

SELECT SCOPE_IDENTITY()Then after using the Insert query I can simply call this query method and get the last Id. But unfortunately this doesn't work either. It doesn't even let me add this query in the designer, it says Unable to parse query text.

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VS 2010 : How To Limit Maskedtextbox Input

Feb 25, 2011

I have a maskedtextbox that i want to limit character input in it but i can't manage to figure it out.The date type is "yyyy-mm-dd" and the mask is "1300/00/00" (it is not gregorian calender, it is persian )In the TextChanged event i am changing the bindingsource filter.Because of this i don't want the user enters invalid date. For example the user enters 9 in here : "1300/90/00" i want to prevent this from happening before TextChanged event occur. (the place isn't important i just want to stop user from entering an invalid month or day)I have tried the KeyPress event but i don't know how to detect where in the textbox user is entering a character.

Note that i know already how to validate and i have a code for that but the TypeValidationCompleted event occur when user does all changes and leave the textbox.

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VS 2010 Limit Values In A Textbox?

May 13, 2012

So far I have code for a textbox that limits the value entered by a user to two value places. However, I would like to limit the value entered by a user to numerical values only. And to handle any exceptions that go along with it.

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VS 2010 - Create Processing Time Limit

Apr 12, 2012

I have a process that recieves a request and issues a response. Sometimes createing the response is taking too long. I would like to start the request, and after 8 seconds, if the response has been created, I would abort the process and send back a generic message.

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VS 2010 How To Limit The User To Input . In Textbox

Jan 23, 2012

How can i limit the user to input only one period in textbox cause in my textbox the user can input may periods on it??

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VS 2010 Limit Text Entry In DataGridView?

Jul 21, 2011

Okay, I've got a datagridview in my WinForms app that auto-builds the column list from a datatable schema. It's working fine, except that it allows the user to enter values too long for the database field. For example, I have a "name" field that is defined in the Sql-Server database as a varchar(50). Is there any way to limit that cell (column?) so that it only accepts 50 characters? Right now it lets them enter anything and throws an exception later.

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VS 2010 Limit User Textbox's Input?

Apr 17, 2012

I have a text box that I only want the user to enter A, B, C or D (it'll give an error msg if anything else is entered)

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Using Update With TableAdapters?

Sep 2, 2011

When a person makes changes on my datagridview and closes it, I want it to automatically go into the database and update in a new column (which is already been created) the text "changed".

Everything in my tableadapters already works. Its just the VB part which I dont know how to call the update command. Here is what I have in my updatedataset().

Private Sub UpdateDataSet()
Dim datasetChanges As datasetTs = New datasetTs
Me.bindingsourcet1.EndEdit()

[Code].....

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Retrieve A List Of Tableadapters?

Dec 14, 2009

Most of my programs use table adapters, and the connection strings are stored in app settings. This works fine, but was a real PITA when switching from development to production environment. I had to change manually the connection strings before and after starting my work on any app.

After a bit of research I found how to switch connection strings for table adapters dynamically. By simply adding a custom property for connectionString, I was able to acheive this. But I still have to add code in the new event for each application so the connection strings get switched when it loads. (My connection strings are kept as an app property setting in a common DLL. I just keep one copy of the DLL with my connection strings locally, and one copy o the DLL with the production connection strings on the production server.)

I'd like to take this one step further and have either have the datasets change the connection strings for all table adapters they each contain when they load using the new event, or do the same from a VB module. I may have up to 3 datasets at any one time.

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Tableadapters Are Not Appearing In Toolbox

Dec 17, 2011

I added few new tables on data sheet (file name nwinddata.xsd) but the new added table adapters does not appear in toolbox whereas the old adapters were appearing. I read somewhere and followed their advice to delete the project and re add the project to the solution explorer, did that, now i can't even see old adapters in tool box all gone.When i restored my backup old adapters appear in toolblx but few days of will be lost which i don't want.

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USING Statement And TableAdapters Connection

Nov 9, 2011

I need some help with correctly implementing the USING statement with strongly typed TableAdapters..[code]How can I use the USING keyword instead of Try.. Finally for the connection object?

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VS 2008 TableAdapters Connections?

Jul 8, 2009

I need to change the connection string of all tableadapters at runtime, can anyone tell me for the best way to do it?I have a conection string in my settings, that i can't change at runtime (application scope), i could go to dataset.designer and change the value to a new variable but i don't think this is a good method.

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ADO - Best Practices When Using Tableadapters, Sql Connection Strings

May 2, 2010

I have read and worked through all of the examples in the book "ADO.NET 2.O", but there is so much there with so many ways to handle data, I am having difficulty translating the examples into my own real life application. I am confused about creating runtime connection strings, connection strings in my app.config file, connection strings in the properties for a sql connection control, etc.

I have a midichildform with a datagridview control, and I use a table adapter to edit and update the SQL Server 2005 Express edition database. There is no problem there. However, I also have a button control that I want to use to "process" the data that has been updated with the table adapter. I want to open the updated table, read each record on at a time, manipulate the data and add a records to another table. Do I have to create a connection string and an oleDBconnection? Or can I somehow use the connection string that is in my app.config file? [Code]

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Asp.net - Iterating Through The Rows Of A Table Using Tableadapters In .net?

Oct 3, 2010

i have a problem. I have database with a tableadpater. i want to get the userid with this tableadapter.

Dim dsGN As New ForumTableAdapters.Message2TableAdapter
Dim dtBetrieb As Data.DataTable = dsGN.GetUserIdFromThisMessage(ConversationID)
For Each objRow As dsGN.Message2Row In dtBetrieb.Rows
mystring = objRow.UserId.ToString
Next

i get the error "dsGN.Message2Row is not defined" The Name ob my table in the database is "Message"

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Moving TableAdapters Out Of The Main Form?

Feb 24, 2009

I'd like to keep all my SQL data related code in a separate class and only have UI related code in my main form. However, the TableAdapters are automatically placed on the main form and, of course, the auto-generated code placed in the Form_Load event.

Obviously, it's easier to keep it like that but is it possible to move them to a different class?

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Ascertain If The Tableadapters Underlying Data Has Changed?

Aug 3, 2011

I am retrieving data from my database using a TableAdapter. I was wondering if there is some way I can tell (or be informed) that the data has changed and I therefore need to do another Fill? That way I can just Fill on demand rather than every time the user requests to see the information and I am forced to do a Fill before showing the data because I don't know if is current or not. For the record I am using an ODBC connection string to access a Pervasive PSQL database

EDIT I was thinking I could check the last write time of the MKD file to check if this has changed but this doesn't seem to be reliable as it is not written to until the connection is closed. Does anyone know the circumstances when this is written?

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Can't Set Tableadapters Commandtext At Run-time For Typed Dataset?

Apr 12, 2012

For some reason I'm unable to set the commandtext of the tableadapter. I have the following code:

'Prepare the sqlcommand
Dim dd As System.Data.SqlClient.SqlCommand
dd = new System.Data.SqlClient.SqlCommand
dd.CommandText = SqlUsers

[Code]...

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Create TableAdapters With TableAdapter Configuration Wizard?

May 13, 2011

I was Created TableAdapter through Configuration Wizard , and i applied joins and Filters on the wizard. Finally i am getting the rows which i want, and now one table was created in my dataset.

If i update few records in my database, is there update also in this table?? why b`se this table is not in the Database right?

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Unable To Connect To Database Using Both Tableadapters.fill & Sql Code

Mar 27, 2011

Running off my laptop: Visual Basic 2010 Express & SQL Server 2008 . I've successfully been able to use the connection wizard to connect to my database in vb.net and read/write data using datasets/tableadapters/binding_source etc.

Now I am trying to create an SQL connection via code to connect to my database to do some more complicated queries. I was successful in being able to connect to my database with SQL, but by doing so it produces an error when it tries to run any .Fill() methods from my TableAdapters below. The error produced is the following: "SqlException was unhandled. Cannot open user default database. Login failed. Login failed for user 'Chris-PCChris'".

If I remove my SQL connection code, the TableAdapter.Fill() methods will work fine.

[Code]...

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Auto-tab To The Next Text Box After Limit Of Characters Has Been Reached In A Text Box In VB 2010?

Apr 14, 2012

I am trying to auto tab to the next text box after my limit of characters has been reached in a text box. Visual Basic 2010 Can this be set in the properties? I have 7 boxes, each allowed to hold only one character.

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VB6 Used Recordsetsor Arrays - .Net Framework In VB2010. Datasets, Dataviews. Tableadapters, Arrays. Enums ?

May 9, 2010

In VB6 I load a recordset containg all of the records (6 fields per record)in a table into an XArray and then manipulate the records in the array and then write them back to the original table. The array issorted by the first field (1 to maybe 8000 or more) I need to find records in the array by an ID field and then move them (because of some external criteria that happens many times) from say number 400 to number 375. Then all of the other records between 375 and 399 were renumbered up 1 to fill the gaps left by the move.

The XArray worked well as it could find and also move to a next record easily to facilitate the revisions to each record quickly. Everything is done in VB6 in code and nothing visual needs to be shown to the user until say 2000 of these external changes are complete. What is the best, most efficient way to do this in the .Net framework in VB2010. Datasets, Dataviews. tableadapters, arrays. enums ?

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Db Row Limit For Adodb?

Jan 23, 2010

is there anyway to limit the rows selected in adodb?i had something like this

vb.net
Dim command As New OleDb.OleDbCommand("select*from Table order by Col1 limit 5", connection)

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How To Limit Bandwidth Using Ftp

Feb 25, 2010

how to limit Bandwidth using ftp

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Textbox Has A Limit?

Jan 25, 2010

does textbox has a limit because I added a (very long) code and I couldn't paste further..What can I do make it bigger? I mean bigger of capacity.

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Asp.net - .net Breadcrumb Navigation Limit?

Mar 26, 2011

Im currently trying to set up breadcrumbs on my site, Ive tried two different approaches and the max I have seem to get is only 3 levels on the breadcrumbs. Is there a limit to it?

Home> Hello World > Good Bye Home> World > Good Bye > Forever E.g. I never seem to be able to get Forever to show on the breadcrumb. Is there a limit?

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C# - Is There A Limit For System.IO.FileShare

Aug 5, 2011

I want to build my own flat file database. Here is how I access the flat file database

Dim fs As New System.IO.FileStream("C:MyDb.txt", IO.FileMode.Open, IO.FileAccess.Read, IO.FileShare.Read)
Dim sr As New System.IO.StreamReader(fs)

Is there a limit imposed by .Net for the usage of System.IO.FileShare.Read, System.IO.FileShare.Write and System.IO.FileShare.ReadWrite when dealing with a file?

I mean is that .Net capable to support thousands of users using file stream and stream reader objects with System.IO.FileShare.Read to access a single file concurrently?

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Excel 2003 Row Limit?

Sep 28, 2005

Excel 2003 Row Limit?

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Forms :: How Limit A List Box

May 20, 2011

how do u actually limit a listbox to say 10 items

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How To Limit Folder Browser

Jul 10, 2009

Is it possible to open the folder browser (window explorer) in such a way that only one specified folder content is displayed and just the content of that folder (folders or files) can be modified?

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