Dataset Designer Being Extremely Slow

Apr 17, 2009

I have a dataset with around 15 table adapters. Everytime I make a change, such as add a column, change a type, or just anything, it takes around 3-4 minutes before studio responds again. The processor and ram are in good shape, but there is a spike in network usage by devenv during this time. In fact, devenv has the higheset network usage all together, even with with IE open and browsing. Why would this be and is there any remedy?[code]...

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MS Access Table Update Extremely Slow?

Apr 6, 2009

I have looked all over for a solution to this problem and have tried a bunch of different things, but nothing seems to work.I have a sub procedure that does the following:

1) adds two columns to a data table (table1)

2) fills a dataset with several tables in order to make calculations (this determines the data that will be stored in the two new columns of table1)

3) updates ONLY table1, and ONLY the two columns that have just been added (these columns are thus empty for every row before the update begins)

As it is now, the da.Update takes about 3 hours to populate the entire table (it updates about 300 records per MINUTE if I'm lucky). There are approximately 40000 records in table1 for this test subset, but there will eventually be up to 1.5-2 million (in other words, this is a small table currently). I have tried using executenonquery() along with a sql UPDATE command instead of da.Update, as well as many other things, but none of them has improved performance at all. I've also tested it on two PCs, one running Vista and one XP, and there were no differences. I'm using Access 2003. I know Access is not ideal, but for now it is the only option.

I know that the root of this is the line of code with the da.Update, because the giant loop before it that I previously thought was causing the slowdown executes in 30 seconds, leaving only the update before the subroutine is complete. I don't know how exactly the da.Update works, but I've suspected that maybe it has something to do with that? Code is below:

[code]...

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Asp.net - Writing To Excel File Containing Formulas Is Extremely Slow

Dec 27, 2011

We have an automatic process that opens a template excel file, writes rows of data, and returns the file to the user. This process is usually fast, however I was recently asked to add a summary page with some Excel formulas to one of the templates, and now the process takes forever.

It successfully runs with about 5 records after a few minutes, however this week's record set is almost 400 rows and the longest I've let it run is about half an hour before cancelling it. Without the formulas, it only takes a few seconds to run.

Is there any known issues with writing rows to an Excel file that contains formulas? Or is there a way to tell Excel not to evaluate formulas until the file is opened by a user?

The formulas on the summary Sheet are these:

' Returns count of cells in column where data = Y
=COUNTIF(Sheet1!J15:Sheet1!J10000, "Y")
=COUNTIF(Sheet1!F15:Sheet1!F10000, "Y")

[Code].....

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Modify Designer.vb (form Designer) To Remove A DataSet Control From Winforms Windows?

Jan 27, 2011

I am attempting to update an existing winforms application, that was created with a dataset control on all the winforms pages. I have ported it from VS 2008 to VS 2010 and I need to update the database section and connect it to the SQL backend using traditional code method.In the Solution explorer, when I click on the Dataset files, and click "Exclude From project" I am unable to build the project.Is it advisable to comment out the code lines that refer to the dataset in the .designer.vb files?

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How Much Tables Approximately In The Designer Will Make Visual Studio Slow

May 29, 2011

I was wondering if my database got way too much table for use the designer. Would be glad to hear experience from those that using L2Q with lots of tables. How much table your database have ? How fast is VB ? (fast, experiencing slowdowns, unusable)

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Loop Through Dataset.Datatable Slow Performance In .Net 1.1?

Mar 16, 2009

I have a program in where I need to loop though the entire dataset.datatable. I takes a long time. What is the alternative I can use to do the some job but faster?

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Dataset Designer Hangs?

Nov 10, 2010

When using the Dataset Designer in VS 2010 I add a new query.It adds with no issue.Add another,starts to hang. Add another and now it can hang for hours.I use task manager to kill VS 2010 after 30 minutes.Go back into the same table adapter query, modify it, save it.Works in seconds.Add another query, hangs, hangs, hangs.I have seen posts about this going back to VS 2008.I have No Add-Ons loaded, what is causing this issue??

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IDE :: DataSet Designer And Database Changes?

Oct 21, 2009

It seems that there is no way to preserve changes to a DataSet made with the Designer when there is a change to the database. The only way to get the Designer to rescan the database to incorporate a change is to delete the DataSet and then recreate it. This of course blows away all the mods you've made in the designer. There should be a way to have the Designer rescan the database while preserve all the mods that have been made in the Designer. Otherwise the Designer is essentially useless after the initial generation of code. What am I missing?

As a workaround, I tried incorporating the changes to the database by making the same change in the Designer rather than recreating. However, clearly no one tested this is it only partially regenerates the code based on the change. Try changing a field from nulls not allowed to allowed. This works when you add data to the DataTable, but bombs as soon as you update the database, because the DataSet code does and the database code doesn't get regenerated.

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OutOfMemoryException With DataSet Designer

Jan 10, 2012

I have a windows form application made in Visual Studio 2010 SP1 Rel. I'm using SQL Server 2008 R2 for my database. I've been working on this project for a while now and I am almost completed with it. I recently had to add a field to one of my tables in my database, which hasn't given me much troubles in the past as I've had to do this before. To make sure I did it properly, I'll tell you how I added the field. I went to my database on my server and went to my table, tblOrderParts. I right clicked, and went to design. I added a field, Order_Delete, which I made a bit field so I could use a checkbox. When I went to my dataset designer, I used the wizard to add the field to the table in my program.

After I added it, I remembered that one of my forms was using a view I had created with that table that would need the checkbox as well, so I went back into SQL Sever to add that. Added in SQL with no problem, but when I went back to Visual Studio's dataset designer to add the field to my view, it won't allow me. I open the wizard, go to my view i created, vwAllOrders, and checked the box next to it. When I press Finish, though, I get, "An exception has occurred while attempting to set the data source generator property." I had to cancel out of the dataset wizard cause it wouldn't let me continue... even if nothing was changed.

Now it is also showing me an error in the Error section saying,
"Custom tool error: Failed to generate code. Exception of type 'System.OutOfMemory' was thrown."

Now that I've said the error, here's what I'm thinking is going on... Something must be wrong with the custom tool on my dataset. The tool name is MSDataSetGenerator. I went on more forums, and a couple mentioned trying to restart the custom tool by right clicking the dataset and going to "Run custom tool.' When I run it, it gives me another error. Not much different, but still different in wording.

The error it pops up say
"The custom tool 'MSDataGenerator' failed. Exception of type 'System.OutOfMemory' was thrown."

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Changes To Dataset Are Not Appearing In .designer.vb File?

Jul 4, 2010

However, now when I open it in design view and add a new tableadapter I now cannot reference the new objects from the code. Likewise if I delete one of the existing tables in the dataset, it still appears to be there from the code (ie in intellisense)Similarly, when I examine the .xsd file, the changes I've made i the designer appear, but the changes are NOT happening in the dataset.designer.vb file. It's as if the two files are somehow out of sync

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Dataset Designer - 'End Sub' Must Preceded By A Matching 'Sub'?

May 22, 2010

VB.Net 2010 Express - AMD Phenom II X4 - 8g ram There are times when I debug the app that I get the 'End Sub' must preceded by a matching 'Sub' error. This usually happens after I make a change to the table adapter query in the dataset using the designer.

If I dblclick on the error it opens the dataset.Designer.vb and shows the error in question.

First, I have made NO changes to this file manually Second, when looking at the code in question, it actually appears there is nothing wrong with it - yet the compiler thinks there is.

This appears to be a VB.Net 2010 IDE/compiler bug Now, I can resolve this error by re-opening the dataset, configure the Fill query, click Finish (not making any changes - just clicking Finish), and then save and close the dataset.The error goes away then, but I shouldent have to go through all that; especially since my query was fine to begin with.

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DataSet Designer / Auto Add Columns

Sep 22, 2009

in my VB.Net application I've created a Dataset that call an existing MS SQL Server stored procedure but after the wizard close no columns where added... how can I add all the columns returned by the stored procedure without adding them manually (off course the stored procedure might change in the future) in which case manually will not work.

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DataSet Designer Stops Drawing Itself

Feb 24, 2011

The DataSet designer will stop refreshing itself every now and then in VS2008. This means I cannot work with my DataSets until I restart VS. There is a more detailed explanations in

this thread, but it was incorrectly marked as answered. This issue is taking more and more of my time though, so I'd like to get another answer now.

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IDE :: 2008-not Installed Dataset Designer

Jul 8, 2011

I would like to know where the dataset designer is obtained for a vb.net 2008 appliocation I need to work on. Is this part of the initial install for visual studio.net 2008. If so, what part of the initial install will I find the dataset designer? Is this a plugin that needs to be downloaded? if so, what URL do I need to use to obtain the plugin?

[Code]...

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Organize XSD Dataset Layout In Designer?

Jul 22, 2010

I've got several pretty massive dataset's with a lot of tables/relations in each.I've came in this morning and one of the datasets has sorted itself into a very readable Vertical form with all relations and tables displaying perfectly readable.Is there a command to "Arrange" the layout of the tables?

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IDE :: IntelliSense Slow When List Filtering Large DataSet Hierarchy

Nov 21, 2007

I just converted my project from VS 2005 to 2008 and started getting really bad lag only when intellisense iterates my dataset objects. The cpu maxes out one of my cores for about 2-3 seconds each time the intellisense list pops up. Is this a new feature of the 2008 ide?

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IDE :: VS 2008 Dataset Designer Corruption On Saving

Apr 16, 2009

Ok i have an issue that i have reported before but never had a satisfactory result to so time to try again. and im just about ready to throw this whole visual studio nonsense in the trash, ive wasted god knows how many hours on this now. I have a medium sized VB.net (2008) project, which has around 50 Datatable adapters that i have setup in the dataset designer, and are all workign perfectly well.

[Code]...

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Dataset Designer Generated Code Syntax Error. Bug?

Jun 1, 2010

I'm using VS2008 and SQL CE 3.5, building a smart client app. When I add a table adapter with this code:

UPDATE feeders
ET planningAreaID = @areaID
WHERE feeders.transformerID IN

[code].....

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DB/Reporting :: Changes To Typed Dataset Not Seen In Windows Form Designer?

Nov 19, 2008

I have a typed dataset with table adapters. I use this method because it makes it easier to design the layout of my DataGridView.The problem is I have added a new table to my dataset. When I go to the "Data Sources" list view, I can see the new table.However, if I add a new DataGridView to my form then attempt to bind it to my new data table, the table will not show up in the list of tables for that dataset.

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Implement Wizards Designed Dataset In MVC Designer Pattern?

Nov 8, 2009

I have written this code implemeting MVC design pattern.... for simplcity... i have create Model with BLL having a two classes Employee and Designation and i have created the DAL using the Dataset designer tool....thus i've implemted all relationship bewteen the two tables Empoyee and Designation connected to each toher using field EmpIndex.

In MVC design pattern i should return objects to the controller (in this case i used only the view- win form) becuase of my Designer created DAL i cannot return objects of Employee and Designation to the View... this is becuase in BLL: the following method

Code: public TestMVCWithDataset.TestDataSet.tblEmployeesDataTable SearchByIndex(int iEmpIndex) { try { empAdapter.Fill(dtEmployees, iEmpIndex); return dtEmployees; } catch { throw new Exception("Employee not found!"); } }

[code]....

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Reference Access Database DataSet Designer File In WPF?

Mar 22, 2009

I've included an MS Access database in my WPF VB app, and I'm trying to link the data to an XCEED Datagrid. I have the following code in my testerDataSet.Designer.vb file which I assume is the funcion I should be referencing

Public ReadOnly Property Contact() As ContactDataTable
Get
Return Me.tableContact
End Get
End Property

I'm trying to get it to fill my datagirid using this
<Grid.Resources>
<xcdg:DataGridCollectionViewSource x:Key="cvs_contacts" Source="{Binding Path=Contact, *Source={x:Static testerDataSet}*}"/>
</Grid.Resources>
[Code] .....
What I'm trying to achieve is for the datagrid to display the data in the Contact datatable.

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Convert A Qry Made In Query Designer To Vb Link Over Sql Dataset Syntax?

Sep 22, 2010

I used the query designer to create a qry from a datagrid view in vb2010 express, the idea was to work out which diver logged the most minutes in the water. here is a copy of the sql syntax:

SELECT MemberID, Name, SUM(DiveTime1) AS D1, SUM(DiveTime2) AS D2, SUM(DiveTime1 + DiveTime2) AS s1
FROM Triplog
GROUP BY MemberID, Name
ORDER BY s1 DESC

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DataSet.Designer.vb Curious Code Causing System.InvalidOperationException?

Mar 3, 2012

I'm using a DataSet to interact with an accdb file in an application. While debugging, the app occasionally closes, without warning and returns the stack below. The code causing the exception is in the DataSet.Designer.vb file (automatically generated). What's curious is the line that reads:

If (previousConnectionState = Global.System.Data.ConnectionState.Closed) Thencommand.Connection.Close()End If Why would the code try to close an already closed connection?I just change the "=" to "<>"? Will it stick? (since it's auto-generated, I'm sure it will revert if I modify the dataset, right?)

[Code]...

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Selecting A Particular Query In The Dataset Designer To Be Used In The Fill Method Of The Table Adapter?

Mar 1, 2012

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:

SELECT ID, FatherName, MotherName, EmergencyContactName,
EmergencyContactRelationship, Address1, Address2, City, State, Zip,
PrimaryPhone, SecondaryPhone, Emaile.

[code].....

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IDE :: "Edit Dataset With Designer" Window Hangs In VS 2008?

Sep 29, 2010

Editing a Visual Studio 2008 solution (1 Windows project and 1 installer project) that has been working flawlessly.Recently, attempts to edit the Dataset (add/modify queries) by right-clicking the dataset and selecting "Edit Dataset With Designer" brings up the MyProject_Dataset.xsd window TAB, and initially displays "Please wait while loading..." in the middle of the window -- and then does nothing else.Alt-Tabbing to other apps then leaves "ghost window" stuff displayed where "Please wait while loading" once was... and editing queries, etc., is impossible.Shutting down Visual Studio will enable me to successfully get into the editor once ot twice, but then it locks up again.

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Button Array - Code Used (extremely Inefficient)

Aug 10, 2011

I have a button array that I filled up. Here is the code I used to do that.

Public buttons(29) As Button

For i = 0 To 29
buttons(i) = CType(Me.Controls("Button" & i), Button)
i += 1
Next i

Here is some code that I used (it is extremely inefficient):

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click, Button2.Click, Button3.Click, Button4.Click, Button5.Click, Button6.Click, Button7.Click, Button8.Click, Button9.Click, Button10.Click, Button11.Click, Button12.Click, Button13.Click, Button14.Click,

[CODE].....................

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C# - Building Extremely Lightweight Business Object / DAL ?

Apr 7, 2010

I have completed a simple database for a project. Only 6tables. Of the 6, one is a "lookup" table.There is one "master" table that is the driver for the system. It is referenced as a foreign key by the other four tables.Give that this step is completed. What is the FASTEST, EASIEST way to create POCOs/BizObjects that can load load the data and the child data.Here are my CAVEATS.

I don't want to spend more than 30-60 minutes learning how? There is very little biz logic needed in the POCOs. They will pretty much load data. Don't even really need to write back data.I already know CSLA (up to version 3) but I feel that is overkill for this little project.Nevertheless, I would love it if it ROOT objects could have collection classes that contain the CHILD objects as in CSLA...but again, without using CSLA.

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Getting An Extremely Odd Error From Visual Studio 2008

Nov 6, 2010

This morning I opened up my project The Bible Study Tool and got a pop up warning box that says the following: There is no editor available for 'G:VisualStudio ProjectsThe Bible Study ToolThe Bible Study ToolBSTMain.vb'. Make sure the application for the file type (.vb) is installed. I do not know how to 'make sure the application for the file type (.vb) is installed. I get same error no matter what solution (program) I try to open. I can see the forms code window, but when I double-click the form in the solution explorer I get the above warning.

[Code]...

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VS 2008 Extremely Basic MDI Plugin System

Jul 8, 2010

I've got an MDI form with a menustrip that already detects all .dll files in a folder and adds them to the menu to show the user which plugins are available. The thing is that I don't know what to do from here on out...

I'd like to be able to update my program without having to stifle through all my code (it's a very big program) and be able to create basic new features through external DLLs. It's extremely useful for users to make their own features too

Anyway, what a plugin would look like is most likely just a form with controls on it that the user makes themselves in VB. I'd like the plugin to activate through an init() sub within the plugin by clicking on the menu item shown in my MDI form.

I kind of started with my own code but it didn't really get anywhere:

ListFilesInMenuStrip(PluginsToolStripMenuItem, App_Path() & "Plugins")
For Each c As Control In Me.Controls
If TypeOf c Is MenuStrip Then

[Code]....

...Where ListFilesInMenuStrip() is my function to add all the DLLs to the menu and App_Path is just a shortcut function which serves the same purpose as VB6's App.Path() class.

I've also done research but only came across all their weird complex CodeDom and other weird things...This seems so simple but I just can't wrap my mind around it :I

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VS 2010 Working With Extremely Large Numbers?

Apr 28, 2011

For example, to calculate this:(22 ^ 29) Mod 57Supposedly there is a way to get around overflows and do these calculations, but I can't find much online. Now, the person who said this was doing VBA in Excel and said that there was about 4 lines of code which could handle the overflow so it wouldn't happen.

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