Performance Optimization For Retrieving Xml Table Data?

Mar 17, 2012

I have written a code which does the thing as the title says. The problem is, the whole process took 10 minutes just for 1000 records. Here is the code:(Written in vb.net 3.5 and sql server ce)

MyConnection.Open()
Dim count As UInt32
cmnd = New SqlCeCommand(sqlstring, MyConnection)

[Code].....

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DB/Reporting :: Retrieving Data From Another Table?

Apr 4, 2011

I have created a database in VB2008.NET using SQL 2008.

My problem is that while I am in the form where I see the the data, I want to retrieve backwards the related data from Owner and Car eg. the owners name and the car model.

Is there any way to do this in a single row?

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Show Result Of A Table List When Still Retrieving Data?

Aug 3, 2010

I need to pupulate a Grid, but i like to do like Microsoft SQL Server Management Studio, when you make a Select to a table with bounch of rows, it start show the result but in the botton still retriving data.So you can start looking the data, not like you get the data and after you get the last row you can asing to the Grid.

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Retrieving Data + Image From Sql Server Table To Textbox And Picturebox?

Oct 17, 2010

i am working on my academic project in which i need to retrieve data from sql server table to textbox and image in vb.net . i am able to retrive data either in text box or only image can anyone help me out to get data in textbox as wel as image in picturebox.

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Increase Load Performance From A Relationship Table Adapter To Fill In Datagridview In Vb

Apr 22, 2011

i have problem when i generate my program the program takes time till in my datagridview from table adapter in which i already create in a dataset any way how to make the program fill the records faster and decrease the loading time when fill in the datagridview? [code]

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Retrieving Table Rows From A Dataset?

Sep 10, 2009

I am trying to retrieve row data from a table in a dataset (dataset name is PatientsDataSet and table name is tblfacilitiesnames).

I am using VB 2008 but the code I entered is from a VB2005 sample so something must have changed in the format.

I am already connected to the database since it opens the connection when the program is run.

Here is the code:

Dim Counter As Integer
Dim Str1 As String
Dim FacRow As PatientsDataSet.tblFacilitiesNamesRow

[Code]....

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DB/Reporting :: SQL Retrieving Document Paths From Table

Mar 23, 2010

What I'm trying to here is create a mail-merge document and then use the file path of the created document to query the documents in the case folder (scanned PDF's) and send them to the printer behind the document. I do not want to open the document just send them to the printer.Document I created [code] I am unsure of how to created this string, someone told me I need to use a like command, which I haven't been able to find out to much about..Also I have no idea how to set up the print loop..I would use a shell command to send them to the network printer? [code]

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VS 2008 Checked Listbox Populated By A Table Then Retrieving Values

Feb 7, 2010

I have a checked listbox that I've populated with a table that has three columns, Name, Address, Phone - and have done so successfully, but when i display the items in the listbox, i would like to retrieve additional values of the checked items other than the primary displayitem.[code]'we now have an array full of the Name column only, from our checked items 'i'd like to grab the other two as well (not to display in the listbox, but to use elsewhere as variables) 'and keep the checked listbox as a control in the above code, the fill_array variable is only populated with the items displayed in the checkedlistbox - my question is, can i keep the display item the same and pull the other two columns from the datasource, but only for the ones that make the checkeditems list?

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Get 64-bit Performance Data?

May 4, 2011

[URL]

The upper picture is the output of a Unix task. The lower picture is what I have in VB. Enumerating tasks is not difficult however the rest it is because it's not documented anywhere.

What am I interested in if I want to get 64-bit performance data?

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Datatable Getdata Performance - In-line Table Valued Function In SSMS Takes About 6 Seconds To Return 11088 Records?

Mar 25, 2011

An in-line table valued function in SSMS takes about 6 seconds to return 11088 records. The same function in VB .Net 4.0 using TableAdapters.InputTableAdapter.GetData (Created with data set designer) takes about 15 minutes complete.Both are executed from the same workstation.Why does this discrepancy exist?

Workstation:

Windows XP SP3, 2GB

VS2010 Ultimate

.Net 4.0 Framework

Server:

SQL Server 2008

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Data Grid View (retrieving,searching Data)?

Oct 16, 2011

I'm using a mysql as my backend database and i'm using the mysqldata adapter for binding the data, i have my data in the database, but the problem is i don't know how to retrieve it, for example when i want to add a record, before i add that record, i want to retrieve the data in my database to trap that the record i'm adding is an existing record

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Slow Loop Performance While Updating Data?

Jun 8, 2012

In my winform application, I have 2 datatables, both contains 37000 rows. Table 1 has 171 columns and Table 2 has 4 columns. A While loop runs to update values in Table 1 from Table 2 for 4 columns. A For loop runs inside While twice to update values. It takes more than 5 min to do so. which i think should be a task of 5 seconds.

Columns being updated are:
Int64 - 1 Columns
String - 1 Columns

[Code]....

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.net - Performance Comparison Bulk Insertion Using .Net Bulk Copy Or Table Value Parameters In SQL Server 2008

Jan 3, 2012

I am working on a desktop application in VB.Net (4.0) There will a lot of SQL scripts which contains a lot of insert queries Currenlty we are running the scripts using SMO (http://msdn.microsoft.com/en-us/library/ms162557.aspx)For performance, we have planned to change the sql scripts to xml file ( instead of insert queries, it will have xml data with a proper xsd defined )Loads xml to dataSet and Using SQL Bulk Copy we are trying to insert to SQL Server.

[Code]...

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XML Reading Optimization .NET?

Jul 9, 2010

Here's what I've got thus far:

Dim xpDoc As New XPathDocument(strXmlUrl & strXmlInfo(0) & "?xml=1")
Dim xpNav As XPathNavigator = xpDoc.CreateNavigator()
Dim xpExpression(9) As XPathExpression

[code]....

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Improve The Performance Of Reading Data From Excel And Writing To Datatable?

May 21, 2011

I want to import data from excel and move that to Datatable in VB.NET 2008. I wrote and working but its taking too long time.. for 1500 records its taking 4.40 min.

[Code]...

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Performance Concerns Between DataTable And SqlDataReader To Fill Data With FlexGrid

Nov 5, 2009

Which one is more faster between DataTable and SqlDataReader while I'm trying to fill Data into FlexGrid with VB.NET?

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.net - Optimization With Visual Studio Or A Logic Bug?

Feb 3, 2011

I have an small physics toy application I am developing. It works fine except the particles will not push each other away, only pull towards, I debugged that sub going through it command by command and realised the value 'H' would not change, what ever it was set to during the first pass through the sub is what it kept, the only way to change this value is to manually set it i.e 'h = 1'. Once the calculation is redone on the 'H' value it resets to what it was previously, even though the x1,y1,x2,y2 are all different, thus meaning H should be different.

I think it is me that has made a mathematical mistake somewhere, but I cannot see where it is. I need a fresh pair of eyes to look over my work. Please let me know if you find anything.

[Code]...

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Antivirus Scan Speed Optimization?

Oct 30, 2009

I have been developing an antivirus using vb.net. The virus scanner works fine but I was thinking of ways to optimize the scanning speed (because large files take forever)

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Crystal Report And Code Optimization?

Jul 24, 2009

Ok, the error I'm getting is "Load Report Failed" and it happens when I need to load a large number of crystal ReportDocument objects. I've searched on this, and there is a property in the registry that you can change to -1 and it allows to load more, however I'm still getting the error, just after I get about twice as many documents loaded.

The report is basically a one page document (for each client in the database with an interest charge). It displays the amount of interest charged, and other information pertaining to the charge. These documents are basically printed out and mailed to the client.

I created a "Print Preview" screen which has a CrystalReportViewer object, and an ArrayList property. The ArrayList property has an array of all reports, and there are next and back buttons to browse through each report. Once they are satisfied, they will print them all out, and I can dispose of the objects.

The solution for this, from everywhere I've seen, is to "Dispose the object after you are done with it". My problem is that I can't dispose it until they are finished with the print preview screen.

Is there a better way to go about this that won't require too much time to code (we are already over the deadline on this project) or a simple solution to get past the ReportDocument limit? Right now it is erroring on report 150., There are 180 records (as of today) that need to be loaded.

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Optimization - Initialisation Of Multiple Classes

Jul 16, 2009

In a project of mine I'm currently doing this:

[code]...

all classes inherit docMain and addTemplateToList( X ) adds x to a List(Of docMain). Now my question is: Is there a better way to do what's done in the code sample? I thought of something like:

[code]...

Is this somehow possible in VB.net (Reflection?)?

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Optimization :: Optimize Own Code Written?

Jan 20, 2011

How can I Optimize my own code written by VB.net? Is there any tools for it? Does Visual Studio have any one? What's your suggestion? I use VS2008 as my editor.

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[2005] DataGridView Scrolling Optimization

Jan 26, 2009

I have a DataGridView where I bind a datasource (sql query) to it. The row count is high with many columns. Trying to scroll through this DGV is painfully slow.

Does anyone know of any kinds of optimization I can do so that I can scroll faster? Like what is the DataGrid doing when you scroll? Does it repaint every screenful? Does it validate every row? It seems like it is doing something unneeded when a user scrolls.

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Asp.net - Retrieving Data Through LINQ To SQL?

Dec 31, 2009

I got a weird problem here like I got a site that users can post comments on a friend profile page.Everytime a user post a comment my application sends e-mail to that page owner, you know to inform for a new posted comment on his/her profile page.The problem is I want to stop the application from sending email if that user has just recently posted a comment say like 5 hours ago/earlier.Here is the function I use that would try to check it:

[Code]...

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Data Retrieving After Con.Close

Oct 8, 2011

Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
Dim dbSource As String

[Code].....

how do we connect database in access after con.Close() since we do all operation after the con.Close() and works properly.

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Error In Retrieving Data?

Dec 1, 2011

I have MSaccess database.I have 2 tables 1) CUSTOMER TABLE=----CUSTOMER ID-Primary --AUTO NUMBER2) ORDER TABLE =----(CUSTOMER ID--Foreign KEY) Now From the front end using VB.net I have an page in which if i enter Customer details and press button add .I have to INSERT into values into CUSTOMER TABLE and I Also at the same time INSERT into ORDER TABLE with this CUSTOMER ID which i generated now.How is it possibl

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Error While Retrieving Data

Dec 4, 2011

I have a code here which is to insert values in both the tables which has Relationship.[code]...

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LINQ To XML : Retrieving The Data?

Apr 28, 2011

I have this XML:

<root>
<data name="lnkViewResultResource1.Text" xml:space="preserve">
<value>bekijk de resultaten</value>
</data>

[code]...

But, unfortunately, it is not working, it is not getting anything.

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Retrieving Data From A Datatable?

Aug 3, 2011

I'm using two textbox's to enter text and retrieve the data and then show that data in a datagridview.Here is my

Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
Dim dbSource As String

[code].....

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Retrieving Data From Access Db

Mar 2, 2009

Dim cn As OleDbConnection
Dim cmd As OleDbCommand
Dim dr As OleDbDataReader
Dim intaccount As Integer
Try
[Code]...

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Retrieving Data From Database?

Oct 17, 2010

I am using two textboxes, one for roll number and the other for the corresponding roll number.

And I am using 4 command Buttons

Move First
Move Previous
Move Next

[Code].....

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