SQL Server 2005 Slows Down As I Keep Adding Rows
Dec 31, 2009
As a preface, I am brand new to using SQL Server 2005; I know how to use the SELECT, UPDATE, DELETE, and INSERT commands and that's about it. I am also using Express Edition on my local PC (E8400 processor, 8GB of DDR2-800, 2 x 640GB SATA-II HDD in RAID 1)
I have a table that I set up with 8 columns, all are NVARCHAR(Max) and I allow Null. I know in concept what a primary key is, but I don't have one (nor do I know how to set one up).
My VB.NET program that I'm working on is downloading a historical stock price chart from Yahoo, for every single ticker symbol in existence. The first 50,000 rows or so I added was super fast. Then I went to bed, and when I woke up it was still running - but the rate of row additions has slowed waaaaaay down; I noticed this around row 300,000. I always expected the rate of row addition to be constant over time, but obviously this is not so!
From browsing other Stack Overflow questions, I suspect my slow down is related to my piss-poor table setup. If this is the case, where should I begin first to fix this, and are there any good resources I could read up on to get started? I'm hoping this is something simple I can fix [code]....
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Nov 3, 2010
I created a reporting utility for my users to view, send (via email), export SSRS reports. I have set up date parameter boxes with calendar drop down and they are able to send via email a URL link that would either display the report via ReportViewer or send a link that would let then view the report in Excel or PDF. This is working just fine. Now I just added a button for adding new email addresses and a new windows form with a textbox for entering the email address and a command button for Save Email Address. I get an error msg Quote: Objects added to a BindingSource's list must all be of the same type.[code]
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May 10, 2010
I see the DataGridView control has a property "AllowUserToAddRows" that I can turn on or off but what if I want the ability to be context dependent. i.e. I want an event that will fire when the user attempts to add a row in which I can cancel if certain conditions aren't met but I can't find an appropriate event.
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Mar 4, 2011
May I ask a question to you all.I have vb.net project that generate sales report from SQL Server Database.I changed SQL Server 2005 Express to SQL Server 2005 Standard Edition.
After that my program can't run properly and every time I got Time Out Expire message.
That program work properly with SQL Server 2005 Express.May I request suggestion how to fix this.
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Aug 16, 2010
I have a form that i want to be saved to my database. The form is adding a new record to my sql server 2005 database but it is not bringing the text over with it. The new record in my db is just an empty row. Here is my code.Add to database section ( i have removed the connectionstring for privacy reasons)
<%@ Page aspcompat="true" Debug="true" %>
<html>
<head>
<title>Form to database</title>
[code]....
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Oct 2, 2010
I just installed the .Net4 update from Windows update. (KB2416472) Date last published: 9/30/2010
Now when I boot up it takes almost a minute before apps loaded are usable, for example Avast virus shows its not in full protection mode, you can't access any apps I made that are in the tray, even the LAN is not active or in the tray, before the .Net4 update I could access these apps instantly. The update also adds another file to the running processes called mscorsvw.exe. (yeah more bloatware!)
I have a back-up image of my C: drive so I restored the image twice now and installed the .net4 update and see no difference, it still slows everything down on boot, on WinXP anyway, haven't tried it on my Win7 PC yet. Just curious if anyone else noticed any abnormalities with the .net4 update that was just released.
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Feb 16, 2009
I wrote a small application (150kB) which controlls 2 comports, is sending and receiving messages from both sides and is able to write/read into a text file. My problem starts after I run the application for 2 hours or more. The PC starts to be really slow, it takes ages to even open a folder. What can be the reason? I understand, there might be something in the buffer; how can I clear the buffer from time to time.
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Jan 3, 2011
I need to give the user an ability to add rows. i can't figure out what control to use to accomplish this. for example
first row with empty text boxes is always visible:
[first name] [last name] [middle name]
add more button
[code]......
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Aug 11, 2010
I have tried reading the documentation and can't find a good example of how to add rows to a 5-column unboudn listview. I manually added the 5 columns thru the designer. I'm getting an error on the highlighted line of code. See attached screenshot.
Private Sub LoadComponentGrid()
Try
Dim lvItem As New ListViewItem
[code]....
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Jun 12, 2009
I am generating the Table at runtime dynamically ,how can i add the space between the two rows..
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Jul 7, 2009
I am trying to code a DGV that can insert(update when row exists) and delete records. I use Visual Studio 2005, and code in VB.NET. I am using a MS SQL Database. Some pages i have tried but are either lacking in detail or what i need:
[Code]....
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Jul 2, 2009
I'm am very new to Vb.net, I have coded in VBA.I have created a form that will open Microsoft Excel, add header text to the columns, and insert the text from a few of the controls located on my form ("not finished adding controls") when I click the Submit button.
My problem is that when I enter different data into those controls and click the submit button again, I get a new Excel Workbook with the new data.I need the new data the be submitted to the .Activecell.Offset(1,0) of the already open workbook.Ultimate Goal of Submit button is to open new Excel workbook, Enter multiple rows of data via Visual Basic Form.
[Code]...
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Jun 3, 2009
I am trying to Add multiple rows to a datagridview using the below code, but at the moment it only adds 1 row and when i click add again it overwrites the previous entry and not add a second row:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim dt As New DataTable()
dt.Columns.Add(New DataColumn("Make", GetType(String)))
dt.Columns.Add(New DataColumn("Model", GetType(String)))
[Code] .....
How do I manage to append the previous entry in the datagridview so multiple rows get added?
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Jun 21, 2010
I have a piece of code that works for adding multiple rows to a dataset but I think that it is a lot of code and thought maybe someone may know a better way of doing it. I need to add rows to the dataset based on the selection of a combo box. ie if the user selects 15 the the program adds 15 rows to the dataset.
Case cboQty.SelectedItem = 3
Try
Dim dr As DataRow
[code].....
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Apr 26, 2012
VB.NET 4.0 framework Windows Forms Application. So I have a DataGridView that I have dropped on my form in designer, set all the columns to readOnly, AllowUserToAddRows = FalseAllowUserToDeleteRows = False. Now for the part where it the code is going bad at.
My function Looks Like this:
Private Sub fill_items()
Dim prop As List(Of property_info) = db.property_info.ToList
[code]....
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Sep 4, 2009
I have an unbound datagridview, the datagridviews columns count may very depending on how many are needed like so
For i = 1 To myColumn
Dim RP As DataGridViewColumn = New DataGridViewCheckBoxColumn
RP.AutoSizeMode = DataGridViewAutoSizeColumnMode.None
[Code]...
The problem with this is that it puts everything in the first column instead of each column.
What I was trying was to have it place each value into its own column.
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Sep 17, 2007
I'm adding rows to a DataGridView via the following function, passing in one or more DataTables.The DataGrid is not aware what column(s) are coming back, but appears to build the column names okay.It's when it adds the individual cells (highlighted) that I get the following message:
ArgumentOutOfRangeException was unhandledSpecified argument was out of the range of valid values.Parameter name: rowIndex
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Sep 11, 2011
I'm adding rows to a DataGridView via the following function, passing in one or more DataTables.The DataGrid is not aware what column(s) are coming back, but appears to build the column names okay.
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Feb 20, 2012
[Code] The code in above had already create rows and columns(row=20,column=8),and all data have already insert into datagridview1 when i click button1. Now i want insert data again when i click button2. Because the datagriview have already create rows and columns. In button 2, i don't want create again rows and columns, i just want insert 10 rows data into datagriview1. Which part that i need to eliminate?
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Jul 15, 2010
I have a strange issue when using WindowsImpersonationContext.
Whenever I use Impersonation in a Windows Forms and the Main Form loses focus, all of the controls freeze up and their events are either not triggered or take too long to trigger. This only happens when I use LogonUserA with a user that is not the current[code]....
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Oct 15, 2010
I'm using Visual studio 2008 and microsoft sapi in a forms application. I am using text to speech which works just fine however when the computer is speaking it "bricks" the application and the main ui is unresponsive until the computer is done talking then everything returns to normal. To counter this issue I tried using the background worker thread to establish the sapi on another thread however the form is still freezing when the computer speaks. I would like to note that at this point there is nothing on the form except a tabbed window and a few buttons the form is not performing any code what so ever other then the text to speech.
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Jun 13, 2011
I am using the BGW to run a long loop of several thousand records against several thousand records. If I open another form in the project then the process slows down dramatically, that is because in the Form I am opening has a DGV tied to Table that is being used in my loop process, so I understand why the process slows down.
What i am wondering and experimenting with is how to close the form and have the process resume to "Full Speed" if possible
I tried Closing the form verse Hiding it and DGV.DataSource = Nothing
Thinking that would unbind it?? and free up resources?
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Nov 26, 2009
all of a sudden my program just doesn't seem to work like it used to.[code]It searches the picture box for the color that you tell it to, and it moves and clicks the mouse at that pixel. Well... it used to do that, now it just locks up and won't respond for about 20 seconds.
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Jun 2, 2011
I am using visual basic express 2008 . and i am adding few rows to the database using some stored procedure. it is working fine. after adding the row i am displaying in a grid using dataset . fine.but when i close the program and reopen the program i can't see any rows in the database..
I don't know the problem.this is my code to create a procedure.
Code:
ALTER PROCEDURE AddNewStaff
@SName varchar(50),
@DOJ date,
[Code]....
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Mar 16, 2011
Present i am working on TreeView and Datagridview in VB.NET 2008. In the Treeview one of Node if i will expand, corresponding number of ChildNodes, i want to create same number of rows on the DataGridview.
Assume my treeview Control Nodes and ChildNodes like below.
-31
3101
3102
[Code]....
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Sep 11, 2011
What could be the code if I want to add the value in the 1st row and 2nd row. I want the total to be displayed in Label1.text. I'm just a beginner in Datagridview.Anyway, I didn't put the code because this is just a very small portion of the program that I am creating.
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Aug 20, 2010
listA is list of integerdtListB is DataTableI'm checking that if StudentId of ListA doesn't exist in dtListB, then add it to the dtListB.
Dim stidListA, stIdListB As Integer
For Each la In listA
stidListA = la.StudentId
[code].....
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Jan 15, 2010
Is there a way to add rows to a DGV as I want to add information from another form to the DGV. The .Rows.Add() does not work as I am told I can not add rows to a data bound grid.Short of unbinding the DGV and re writing everything, I can not see how to do it.
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Aug 23, 2010
why the SelectionChanged event fires when adding the first row to a DataGridView? Subsequent adds do not fire this event ... only the RowsAdded event fires after the first row is added.
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Feb 1, 2012
I am trying to insert an initial line (0) into a datagridview (named params). The program will then read each cell in that row, pass them through a function and return values be placed into the next line (1). This will continue until one of the parameters reaches some set point. The problem that I am having is that when I try to insert a new line, it appears above the initial one and not below it like I would like it to.
Here's my code so far:
Private Sub HurricaneWinds_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim init_xrange() As Double = New Double() {0.0, 0.0, 0.0, 40.0, 0.0}
For i As Integer = 0 To 4
params(i, 0).Value = init_xrange(i)
[Code] .....
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