Access - Store Different Data Values?
Apr 22, 2010
I don't know if I can have several same forms to do the manager jobs, ACTUALLY THE STORE VALUES ARE DIFFERENT(those forms can have the independant data values to store into the forms), like if I can have the datagridviews to store the different values? SO,MY QUESTION IS if I can have several same forms(FROM ONE SAME FORM), and can store different data values into the forms with vb.net & access, OR I HAVE TO CREATE SEVERAL SAME FORMS.
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Apr 1, 2010
The following is the code i used to get the value from textbox to listbox and store all the listbox values to the access database at the runtime.In the database, i have only one field called num which is been set as a multivalue field using the lookupwizard. But actually what happens is ,no error is occurred,but the value is not updated in the batabase.
vb.net
Imports System.Data.OleDb
Public Class Form1
Dim conn As OleDbConnection[code]...
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Jun 21, 2010
I need information about store procedure in SQL and how can i access textbox values into store procedure. and connection string for remote server (sql server 2005 installed on server)
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Mar 17, 2011
i have created one access file but i got error in the code so i can't store the values in that data file please check my code what's wrong with my code. [code]
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Mar 22, 2011
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error is same in my all projects lols : " null reference exception was unhandled " my database tabase is an empty table you want to fill on the fly and it has empty table n does have columns defined, but no values
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Nov 28, 2010
I am using an Access database and vb.net 2010. I have created a table in the database with columns for title, datein, dateout and roomnymber. In vb.net 2010 I made a distinguished title = combobox, datein and dateout = DateTimePicker. When I click on F5, an error occurs: INSERT INTO Syntax Error in statement. Here's my code:
Dim sql As String
sql = "INSERT INTO tcekin(title,firstname,lastname,address,country,company,roomnumber,datein,dateout,rommtype,note)" & "VALUES('" & ComboBox1.Text & _
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Apr 1, 2010
I am a VB.net beginner. I am doing simple program that has database connection with access 2007 and i want to store the data (whatever i enter in the textbox) to the database.I did the connection as per the instruction in the msdn(i.e;datasource/database/ms access/selecting accdb file/draging and dropping the fields of the table to the form from the datasource window)I want the code to store data from vb 2008 to access 2007.
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Jun 8, 2011
Dear reader i have one problem,that is how to store the images in access data base from by using web cam ?
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Dec 16, 2010
If you have to store and retrieve data from a database is a string not the most effcient way? What is best?
How does this work in a real world scenario.
For example: I have a customer ie first name and last name and the CustomerID is autoincremented when initially added to the database. Now, the user could lookup and find the customer by their ID but we all know that's not practical. They don't know 231223 is John Adams, they know John Adams or Adams John.
So how do you handle this? Access is the database I am using but I think this would apply to any database.
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Oct 26, 2009
I am trying to store data to access by VB 2008 express. basically, I have 13 check boxes to let the users to choose. when they finish checking the boxes, they will click the button "submit" to submit it. VB will store this as a new row in the database.
However, my insertcommand is shown as invalid. so I need your help to figure out my errors. I put the codes in my reply below to be clear.
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Jun 29, 2011
I am following some examples I have found in earlier discussions, but have run into a problem trying to save the data. I have included my code below, and everytime I reach the ExecuteNonQuery() command it generates a syntax error in the Insert command error.[code]...
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Dec 23, 2009
I want to capture images and store it in access data base in vb.net 2005
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Mar 20, 2010
I am new here and really excited to see the huge resources on this forum for vb.net. I have just started my learning of vb8 and need to create some basic applications for my personal use.I need to develop an application that can extract data from a html table and store that data into Access database. I have learned to create web browser on Visual Studio 2008. Below is the link from which I need to extract data and store into a database
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Jan 14, 2010
I would like a listbox which use 2 fields for 1 Column, how do i insert this in a query?
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Aug 11, 2009
I have a query in Access 07 that identifies the following fields: ContractID, status, start date and end date. For each contract, I've been able to search a network share and upload its corresponding file; however I need to skip the import and write a record to a table for contracts with the same start and end date. I've included a placeholder (in bold below), but how do I make the date comparison work? Do I need to create a multi-dimensional array for that or can it be done with the code I have?
Private Sub cmdRefreshList_Click()
DoCmd.SetWarnings False
'Create an array based on the true-up contract IDs.
[code]....
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Jun 8, 2012
im a newbie in vb.net and i am using vb.net 2008 express edition,,i am creating a project which is importing csv data in my database,
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Jan 9, 2012
I am trying to store 5 values and an associated unique key. I need to search for this key and update the 5 associated values. I'm guessing I would use an object as the value but how do I get the values out from the object?
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Mar 25, 2010
I am trying to create a "Generate Number" application. It needs to generate numbers ( 1 - 100 ) and add them to the array. I have the numbers generated already and outputed into a list box. but I am not sure on how to add them to the array.
I have generated the numbers using for...next and do while loops. But I haven't been able to get the right syntax to be able to add the numbers into the array. [code]/...
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Jul 5, 2009
I have the following code which obtains the compass direction from a degree value. I'm new to VB.Net and was wondering what is the best way to store the values, in an Enum or an Array?
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Mar 29, 2009
I'm trying to convert old code to VB in VS2005. The code I'm working on is used to store values in a string, which will then be handed to a proprietary scramble function. This function is a given in this case. I've already switched from a string to an array of bytes in my .NET code.
The old code (VBA) was using a string value to store the data, example function for Double value:
Private Function DoubleToStr(ByVal value As Double) As String
Dim Bytes(7) As Byte ' 0-7 Double is 8 bytes
Dim n As Long
CopyMemory(Bytes(0), value, 8)
DoubleToStr = ""
For n = 0 To UBound(Bytes)
DoubleToStr = DoubleToStr & Chr(Bytes(n))
Next n
End Function
The code basically copies the memory contents (using API call CopyMemory) of the memory (held by the double variable) to the memory held by a byte array. It then reads the byte array and converts it into a string. Workarounds could be to convert a bool or long to a string, though that would be expensive in terms of memory/storage eg. 1234564787 would be 10 bytes in a string where as a long is only 4 bytes (factor 2.5 increase).
How to retain the original precision? Converting it to a string would result in endless numbers. Another problem (at least I think it could be) is that in VBA the variables are rather simple, but in .NET they are all objects, so how to retrieve the actual memory location of the value? let alone garbage collection moving stuff around. How to get those variables stored in my byte array?
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Jul 19, 2011
Here is my select stament to store values when username and password and check boxes are check
com =
New OleDbCommand("INSERT
INTO Users (UserName,Password,IsAdmin,Read,Write,Change,REMOVE,User_st) VALUES ('" & txtusername.Text &
"','" & txtpassword.Text &
"'," &
CInt(chkIsadmin.Checked) &
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My problem is this wehen i add new record to my db it saves values like this the value of read column is as follows read = 1 when check box is checked and read = 0 when check box is checked but i want to save true or false instead 1 and 0 how to achieve this using vb.net and my db is Oracle.
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Apr 24, 2009
I built a small website and there will be only one admin, so in the admin panel I am asking for a password with a value that I do not retrieve from a database, I just hard coded it in the function in code behind, I know this is wrong though I don't know why.
So is hard coding it in web.config the right thing to do? and how?
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Mar 8, 2011
I am attempting to teach myself visual basic and I cannot figure out how to send a calculated value (on a button click) into a one-dimension array and then recall the last five values in a message box when the user exits.
Here's what I have:
Public Class frmInvoiceTotal
Dim totals(4) As Decimal
Private Sub btnCalculate_Click(ByVal sender As System.Object,
[Code]....
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Apr 4, 2009
I have a code which retrieves values from database
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i want to store all the values in a array for further processing.
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May 31, 2010
I have a database in my app which loads and displays some information on a form by binding the Comboboxes and Textboxes. However, I need to get some of the other values from the database for calculations before they are displayed on the form and I can't seem to find out how to do this.I could bind a couple of Textboxes to the database and then use those values to calculate, but it doesn't seem like a very efficient way of doing things.The dataset is created using the wizard and the controls are linked in the UI.
Please bear with me, I'm still a noob.
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Jul 12, 2010
My application sends information from Form1 to Form2 by means of a global variable on Form1 whose value is read by Form2.
This variable is basically used to tell Form2 what it has to do because it's value will change depending on different conditions.
All form2 is meant to do is load data from a database into DataSets which will "ported" to Form1 (the main form) for consumption. I use a Form for this rather than a class because there's a lot of data that will be loaded each time it's visible and I wanted[code]...
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Apr 8, 2009
I have a rich text box and i want to enter 10 values and I want to use this button I have to store it. How can I do this? Or can anyone link me to the Microsoft site with information about this? (this is visual basic in Visual studio 2008)
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Sep 13, 2010
I am a beginner at VB.net programming. this score calculator. The application is suppose to total up a sum of numbers added, show the count, and an average of the numbers inputted. I try using an array to store the inputted values. Now I'm have issues with my loop keeping track of the total. Also, how do I clear out the array to start over?
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Jul 18, 2009
Using VB express 2008 here. I am just wondering about the best way to store certain values like the last browsed folder even if a user closes the app and starts it again. I dont want to go the route of making a text file in the installation directory and storing the values there. Seems clunky.
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Oct 11, 2009
I want to store say like 8 values, that in the end will be combined into one string. What's the best way to store them? They should be reached in a own namespace I did. In a separate .vb file. I want to able to edit them. The values are both text and numbers. So whats the best way according to you?
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