Coding For Non Random Data?
Feb 22, 2009give me a suggestion to do the simple coding ofnon random data.....
View 1 Replies
ADVERTISEMENT
Export Data From Sql To Ms Access Through Coding?
May 25, 2011I am still having trouble moving data between sql and ms access databases.
View 6 RepliesImport Data From Sql To Ms Access In .net Through Coding?
Jun 12, 2009Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
connetionString = ("server=192.9.200.82;database=eKalyan;user id=invite;password=invite")
MessageBox.Show("connection established")
[code]....
Make A Data Foreign Key And How To Use In Coding
Mar 10, 2009I am not particular with the database approach of Foreign Key a manner wherein a data related to another data. Table1 > Relations > Table2 How to make a foreign key and how to use that in coding ?
View 9 RepliesData Set / Data Adapter Coding
Oct 25, 2011I've just finished my first vb.net application and have a question about setting up data sets and data adapters.It seems like I do a lot of repetition in coding and I'm wondering if there's a better way to set them up.Below is the coding I use to set up a data adapter (daAddSpeaker) and a data set (dsAddSpeaker).The purpose of this coding is for the user to add a speaker name to an Access table thru a windows form.The coding works as intended but I'm wondering why I have to repeat "SELECT * FROM tlkpSpeaker" and refer to "tlkpSpeaker" so often.[code]
View 3 Replies.net - Coding Not Working And Trying To Show Data In Richtextbox
May 25, 2012I have spent hours trying to fix this problem I have, basically I want to only display column 1 from my text file in my rich text box. Each column is seperated by a space (" ") When I run the following coding it shows all columns.
[code]...
3-tier Coding In Retrieving Data To Label?
Jun 21, 2010tier coding in retrieving data from database and display it in label.
I got the code for data access layer but im not sure if it's right:
Public Function getFeedbackQ(ByVal Question1 As String, ByVal Question2 As String, ByVal Question3 As String) As System.Data.DataSet
[code].....
CODING OF UPDATE AS DATA GRID VIEW BUTTON
Jun 1, 2011i have connected my SQL SERVER 2005 database to vb.net and program is capable to show the database in the data grid view. but what i want is when i change the data in the data grid view and click onto update button,changes i made should be saved in database so when i execute the application again i should be able to see the updated database in the data grid view.
View 1 RepliesVS 2005 Data Grid Coding Not Working Properly?
Jul 17, 2009I did this Imports System.Data Imports System.Data.OleDb Public Class Form1 Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
Coding To Perform Addition Of Cells On Data Grid View
Jan 11, 2012i want to know that how can we add two cells of a datagrid view.I have 5 cells, quantity,rate,discount,tax and Total amount.I want to show the total amount in "Total Amount" cell.
View 3 RepliesError When Coding To Add In Data To The Ms Access 2003 Database In Vb2005
Jul 16, 2009i have encountered this error Variable 'dsNewRow' is used before it has been assigned a value. A null reference exception could result at runtime when i click on the button to insert data into my ms access database.
[Code]...
Hard Coding Vs Soft Coding
May 7, 2009Say we have a DataGridView on the main form. I can chose to establish its properties by code or by selecting them in the Properties panel. Is there a difference between these two techniques, a loading time penalty in any of the cases especially?
View 5 RepliesPut A Random Amount Of Data Into An Array?
Feb 11, 2007 I'm wanting to put a random amount of data into an array, or an arrayList or some other collection.
Then say>
Dim myItem As Object 'It might be a string or a number or whatever. In this case
Integer or String probably.
' then say>>
[Code].....
Shuffling Random Data In A Combo Box?
Oct 13, 2010I use the following statement to shuffle the data in a range (for example 1 to 10) and result is stored in a combo box.
Dim RndSQs As New Random()
Dim ArNumbersSQs As Integer() = Enumerable.Range(1, Val(txtSQs.Text)).OrderBy( _
Function(x) RndSQs.Next()).ToArray()
[Code]....
How can I shuffle that data which is already in a combo box but not in a range. These nos. can be random no. that user shall chose.
VS 2008 : Reading Random Data From Xml?
Sep 25, 2009I am having some trouble thinking of a way to do this, what i have is an .xml file loaded and data read from it and used in my application, the thing is the data varies in each .xml for example:
vb.net
Dim XMLD As New Xml.XmlDocument
'// Find and load the XML file
XMLD.Load("Debug/xForm.xml")
[code]....
The fields vary on application execution, there maybe 5 fields with data one time, then 13 the next etc, if only 5 fields have been written to the xml and i load them all like above i get an error (because that data hasn't been written)is there a way to load the data dynamically based on how many fields have been written kinda thing?
.Net Framework 4.0 - Update Random Data Files
Apr 13, 2011I have a VB 6.0 application that works with random data files... Now I have to create a .Net 4.0 application that generates and update random data files.... Net Framework 4.0 can work with random data files ? Does it support again this old tecnology ?
View 1 RepliesCreate Unique Random Data In Program?
Nov 2, 2011I want to generate random datasets with regex.
Therefore I have an expression like [a-z]{10}.I want to generate maybe 200.000 data - maybe more (it should be generic), every data should be unique.
How can i implement that?at the moment i have a algorithm, that generates a random string, then search in an array that stores the values, if the string is already in there it repeats that process. Otherwise it stores the string in the array.
Save Data To Random Access Files?
Sep 6, 2010how do you save data stored in an array of records (structure) to a text file using StreamWriter? I currently have
Private Sub btnSaveToFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSaveToFile.Click
Dim sw As New StreamWriter(New FileStream("EmployeeDetails.txt", FileMode.Create, FileAccess.Write))
For Each record As EmployeeType In employees
[code]....
but it doesn't work. My array is fixed and currently has 3 elements (for testing purposes). If I enter two records and add these to the structure I get the following data saved to the text file:
123,helen,66000
879,john,89975
0,,0
How do I stop unused elements of the array being included when writing to file? Should I use a dynamic array instead and if yes, how do you use dynamic arrays with structures?
Select Random Record From Data Source?
Dec 6, 2011I want to select a random record from a data source (based on an MS Access file), and place the record cell contents into certain textboxes. After the record is chosen, it cannot be selected again.
View 1 RepliesVB 2008 - Get Some Random Unknown Data Off A Website?
Mar 7, 2011How can I get some random unknown data off a website.It's a score on a hiscores.How can I do this?
View 7 RepliesVB6 Adding Random Numbers To Numeric Data
Apr 5, 2010I have an issue in VB6 that is giving me a major headache. When using a variable defined as a single data type, VB6 will add random numbers to the number i assign to it.
For instance I have a single variable that is manually set to 0.3. Then i create another single variable and set it to 0.25. I have the program add 0.01 to the second variable until it equals the first. But they never equal. I couldn't figure out why when both were showing they equaled 0.3.
[Code]...
VS 2010 Pick A Random Line Of Data From It?
Aug 2, 2011I have myMultiLineTextBox. How do I pick a random line of data from it?
View 4 RepliesPopulate Using A Random A Data Grid View Control
May 19, 2011i am having sum textboxes and combos which have been populated accordingly. as in the attchment i enter the data in the textboxes/select values 4m combo and when click on save button all the related text is added to the datagridview's respective col. as desired. the problem is now that if suppose a user enters a wrong data and wants to edit/update the record already added the he will select the desired record from datagrid, double click and all the related data appears again on the combos and textboxes. the user then edits and click on save so that the selected record gets updated
[Code]...
VS 2005 Import Data From RAM (Random Access Memory)?
Nov 30, 2010how can we or can we import data from PC RAM, and stored it to data like text or grafik...
View 6 RepliesRandom Access - Read Data From A Form A Save It Into A .dat File?
Feb 24, 2010This time, basically, i'm working with Random Access Files.I have this et of code to read data from a form a save it into a .dat file. This works fine.
Public Class frmDramaClub
Structure MemberRecord
Dim ID As Integer[code].....
Retrieve Random Data (questions) From Access 2007 Using Vb 2008?
Mar 3, 2012how can I retrieve random data(questions) from access 2007 using vb 2008?
View 4 RepliesCreating A New Random Generator Each Time Should Reduce The Number Of Random Repetitions?
May 26, 2011I've read numerous posts and threads about random number generation, but I havent' run across this.If I generate a bunch of random numbers, the results are radically different if I create a new Random generator for each number than if I use on Random generator for all the numbers. The results are much more consistent and evenly distributed if I use the same Random generator.I would have thought the opposite,because creating a new Random generator each time should reduce the number of random repetitions, if a different time slice is used to create the random number.[code]......
View 9 RepliesBug In VB 2010 RC - Class Random - Always Produces The Same Random Numbers In The Same Sequence
Apr 4, 2010The class Random is out right defective. It always produces the same random numbers in the same sequence. Things I have tried so far is every kind of seed you can think of as well as Randomize. The result is that I always get the same random numbers in exactly the same sequence.
View 4 RepliesVS 2010 Draw Rectangle (random Times, Random Location)?
Nov 26, 2011I am practicing using the drawing commands, and have gotten a grass background and black happy face that moves around the background.It's a 10x10 grid of 50 pixels.I want (at the moment, when i press enter) it to generate a random number of trees (15 ~ 25) at random locations on the background. The program doesn't freak out about anything, and the variables seem to be right (using stop commands) but it's not drawing anything. Here is the code for the "GenerateTrees" command I have for when I press enter.
Private Sub GenerateTrees()
NumberOfTrees = Int(Rnd() * 10) + 15
For i = 0 To NumberOfTrees - 1
bmap.MakeTransparent(Color.Fuchsia)
[code].....
Saving Data To A Random File Using A Fixed Array Element Error
Feb 7, 2012The file structure is fine for retrieving data from the file but when I go to write data to the elements and hit any of the fixed array elements, I get an exception error. this has got to be a sytax problem I am just not seeing.
It seems that I am not addressing the array member correctly yet the same logic pulls it properly from existing records on file.
in a Module I have the structure as follows:
Structure INVOICE
<VBFixedString(6)> Public NUM As String
<VBFixedString(2)> Public SYMBOL As String
[Code]....