Read Field From Database Into Variable?
Feb 27, 2010I simply wont to read one field in a databasetable into a variable.[code]....
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Assigning A Database Field To A Run Time Variable?
Feb 8, 2011I just started using VS2010. I am very familiar with Visual Basic 6 and was very comfortable with it.I was able to take a variable and assign a database field to iwithout using data binding. I can't seem to figure out how to do thatin VS2010 What I am trying to do is have the use enter a password to gain access to the program. The password is stored in a database so that the user/owner can change this password to suit their preference.
View 1 RepliesVS 2008 Declare A Variable That Is Count Of A Field In Database
Apr 5, 2010How can i declare a simple variable in a form that is the count of the amount of times a field appears in a database.Basically i want to count the amount of times the word "Saloon" appears in a column in my database (access 2007) and then assign that value to a variable.
View 22 RepliesVS 2005 Read Every Field Values From Database?
Dec 27, 2009I used this coding for a reading column name from access database. But i want how to read every field values of that particular column?
dim dr as oledbdatareader
dr.item(1).tostring
VS 2005 Read From An Oracle Database With The Same Table / Field Information?
Apr 29, 2009If I have this to read from an access database, how could I translate it to read from an oracle database with the same table/field information? I know nothing about oracle but I assume I cannot use the oledbdataadapter that I am used to when connecting with an oracle DB.
[Code]...
Use An Excel VBA Variable That Contains A Field Name To Be Used In A DAO SQL "ALTER TABLE" Statement For An Access Database?
Jun 23, 2009As you can see below in the code the " & tblName & " will work fine but instead of using the BankName (which the user cannot change because it is in the code) I would like to do the same as I did with the Table name and use a variable that gets its name from an excel spreadsheet rather that an actual name hard coded in a VBA module. I would like the variable field name entered in the Excel Spreadsheet by the user just like the table name is filled in by the user. The problem is getting the ADO SQL string ( cmd.CommandText = "ALTER TABLE " & tblName & " Add Column BankName Char(25)" ) to recognize that the value in the Variable " & fldName & " is the field name to be used.
Sub AddFieldToAccess()
Dim cnn As ADODB.Connection
Dim cmd As ADODB.Command
[code]....
'If I do this I end up with a field named BankName what I need is the name in the variable " & fldName & "
cmd.CommandText = "ALTER TABLE " & tblName & " Add Column BankName Char(25)"
cmd.Execute , , adCmdText
Set cmd = Nothing
[code]....
Program Function - Says, "The Type For Variable [variable] Will Not Be Inferred Because It Is Bound To A Field
May 18, 2012Public Class Form1
Dim x, c, number(0 To 19) As Integer
Dim s As Integer
[CODE]...
The variables in the brackets [example] do not actually have brackets in them in the original code. These are where the issues are. For both variables, it says, "The type for variable [variable] will not be inferred because it is bound to a field in an enclosing scope. Either change the name of [variable], or use the fully qualified name (for example, 'Me.[variable]' or 'MyBase.[variable]')." Now, I'm not entirely sure if this is a stupid question or not, as I'm used to VB '98 because that's what we use in my programming class at High School. let me know why this won't work.
-Note: The intention of this program is to continually loop the generation of numbers for this list until I tell it to stop. Button1 ends the program, Button2 generates the list one time only, Button3 is supposed to loop the generation of the list, and Button4 is supposed to end the loop, but not the program.
Make Gridview Checkbox Field Update Boolean Field In Database?
Feb 7, 2011There are lots of questions about this but I've not been able to solve my problem using the answers to any of them (after many, many attempts..)
I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page.
I want to change the DoNotMail boolean value represented by a Gridview checkbox and automatically update in the database if the checkbox is checked from 0 (False, Will Mail) to 1 (True, Won't Mail) here is the code I used. [code]...
is it possible to do a two way sync on the entire gridview when the user hits a button so you don't have to do an update every time a row is changed? because the user might check the box and then check another box then uncheck a box and it would be a lot of updates...
VS 2008 Connect Database Field To Database Field?
Feb 16, 2011I created a local Database in VB2008 with 4 tables, the problem is that I have a textbox in one table and a combobox in other table and I want that the information that I put in textbox appear after in combobox from the other table... that's possible?
Table: Filmes ... Field: NomeTextBox
Table: Tempo de Aluguer ... Field: Nome_FilmeComboBox
Make Database Field A DateTime Field Currently Is Set To String?
Oct 5, 2010Dim query as String = "Select * from openquery (devbook, 'SELECT wb.arrival_time FROM web_bookings wb ')"All I need is to convert my arrival_time into a datetime field in the query
View 1 RepliesHow To Read Numbers From A File Into A Variable To Be Be Used For A Function Then The Next Line To Be Read
Oct 24, 2009I have created a program that saves the co-ordinates of the users mouse and saves it to a text file to be used as an auto clicker.
View 2 RepliesTransferring Data From One Field In A Table In A Database To Another Field In A Different Table But Same Database In .NET?
Jul 22, 2010I am creating a database in VB.NET for a movie rental place. I currently have three forms;
Member Information
DVD Information
Borrow DVDs
What I would like to do is when I am viewing a member's details, if I click a button 'Borrow DVD for Member', the member's ID number transfers over to the Borrow DVDs table in the Member ID which also would hold some information from the DVD Information table, but I'm sure if i can figure out how to do this firstly, I will be able to apply the same rule and work it out myself.I have been trying to use a query statement like;
INSERT INTO [Borrow DVDs].[Member ID] [IN goodstuffvideos.mdb]
SELECT [Member Information].[Member ID]
FROM [Member Information]
but that has been coming up with error codes and completely not working.
Borrow DVDs table fields are: Borrow ID, Member ID, DVD ID Number, Hiring Fee, Borrowing Limit?
DVD Information table fields are: DVD ID Number, Title, Rating, Hiring Fee, Borrowing Limit Member?
Information table fields are: Member ID, Family Name, Given Name, Address, Town/Suburb, Postcode?
The error coming up is; Error in INSERT statement. Unable to parse query text.And under that it says The query cannot be represented graphically in the Diagram and Criteria Pane.
How To Assign Field Value To Variable
May 11, 2010I'm new with vb.net my problem is how to assign field value from database to a variable here is my code
Call connectdatabase()
dim uname as string
dim pass as string
Try
sql = "SELECT * FROM user;"
command.Connection = conn
[Code] .....
Pass A Variable To The Criteria Field In A Query?
Mar 17, 2009Upon entry into my database, frmLot opens. The form opens in datasheet view. It displays several fields to include one named WorkOrder. The user clicks in the cell named WorkOrder. In the On Click property, I store that variable and name it stWorkOrder. What I need to happen then is to pass this variable to the criteria field of a query named qryWorkOrder and have it run and display results.
View 1 RepliesRuntime Variable Field Selection In Code Behind?
Jan 23, 2012I have a list with several fields that is created from dataset from a linqtosql query. At run-time, the user gets to specify what field he/she wants to display from the list. In other languages, I can dynamically do this like:
valueIwant=mylist(i).[fieldnameImInterestedIn]
Where 'fieldnameImInterstedIn is itself a variable. How do I do this in VB.Net?
non-working actual code follows:
Dim patientdata = (From patientvar In pdfdatacontext.tbPatients Where patientvar.PatientID = patientid)
Dim patientlist = patientdata.ToList()
fieldvalue=patientlist(0).(reportrow.userselectedfieldname)
Xml Element Altering - Read And Change The One Field
May 13, 2010I have some xml that I read from an xml document, now I need to take that same xml and then change one field and then drop back to a file again. [Code] so then as you can see I tried to use a new open of the document from scratch and I get the same error. I read that its because I may have 2 imports that have the same method? I had 2 XML imports and made it only this, but still get the same error. [Code] how to fix my issue or a better way to read and change the one field I need to change?
View 3 RepliesRead EntryPoint From An File (.exe) And To Display It On Textbox Field?
Nov 12, 2011How to Read EntryPoint from an file (.exe) and to display it on textbox field?[code]...
View 1 RepliesDataset Link To Database - Add One Field Inside The Database
Jul 2, 2009I had a dataSet which link to a database. I need to add one field inside the database, After adding the field, how can I update and link it to the dataSet?
View 4 RepliesError The Type For Variable 'Index' Will Not Be Inferred Because It Is Bound To A Field In An Enclosing Scope
Apr 19, 2009I have some code and there are 2 errors which I don't understand I have tried all sorts...
1)The type for variable 'Index' will not be inferred because it is bound to a field in an enclosing scope. Either change the name of 'Index', of use the fully qualified name (for example, 'Me.Index' or 'MyBase.Index').
2)Function 'GetNewPhrase' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used.
I can't get it to work..
Warning5 The Type For Variable 'FolderObj' Will Not Be Inferred Because It Is Bound To A Field In An Enclosing Scope
Mar 12, 2009This program was created with vb6 to find and remove empty folders. i converted this program to VB.NET code and it isn't working like it should.. it seems to stop scanning at 'C:\documents and settings' instead of scanning other folders in other directories...Does this code look right? I can provide the entire program if needed... I just want to know why it isn't scanning like it should. Btw im switching from vb6 and trying to learn vb.net.. vb.net is a lot different..
Private Sub ScanForEmpty(ByRef vFolder As String)
Dim nSize As Integer
System.Windows.Forms.Application.DoEvents()
If bExit Then Exit Sub
[code]....
I get this message at the bottom:Warning5 The type for variable 'FolderObj' will not be inferred because it is bound to a field in an enclosing scope. Either change the name of 'FolderObj', of use the fully qualified name (for example, 'Me.FolderObj' or 'MyBase.FolderObj').
VS 2008 - Invalid Attempt To Access A Field Before Calling Read()
Feb 7, 2010with .net 2008 exp + MySQL 5.0
my code is like this;
Dr_cug.Read()
cug = (Dr_cug.Item(0).ToString)
Dr_cug.Close()
error msg is; Invalid attempt to access a field before calling Read()
i have called the read here what's going wrong please
How To Read A C++ Variable In VB
Jan 26, 2011I have a C++ application and from that I have to read variables with VisualBasic. How to do this?
View 1 RepliesJava Can't Read My Variable
Jun 25, 2012[code]...
everytime I compile my program, it says I'm having incompatible types.
Read File To Variable
Apr 17, 2012I want to be able to put a file to a variable so I can interact with it. For example I could put a wav file into a variable and play it back without having to distribute the separate file. Is this possible for instance by using Base64. I have seen some Python programs for example that have images embedded in the code.
View 1 RepliesRead Variable Into An Array?
Dec 9, 2009I have a variable that holds 350 lines from a HTML page. I need to read this variable into Array. reason behind this, because I am parsing a name that exist more then once.
any ideas on how to read variable with many text lines into an Array
Read Variable Into XML Format?
Nov 10, 2010I try to make a sub routine to read information from memory variable into XML format.[cod]e...
View 6 RepliesIDE :: Read And Output Every Variable For Each Object
Apr 30, 2009I am trying to create a program that solves the rubiks cube and ive started, I made a program that asks for the variables, now I want to output them using my function writeline(). I am trying to use a for each statement to read and output every variable for each object "face". but I am not sure how to go about it.
Heres the code
Module Module1
Dim Top As New Face
Dim Left As New Face
Dim Front As New Face
Dim Right As New Face
Dim Back As New Face
[Code] .....
Load The Variable And Read It With In The Module?
Jun 11, 2010I declared the variables with in the first module to be loaded
Module Mod_Global Public DtFRM As String Public DTTo As String I can load the variable and read it with in the module. Ok, good so far. But sending the code to another module results in nothing in the variable.
Read In Variable From Text File?
Nov 19, 2010I want to read in Windows variables from a text file to look for certain strings.
Example I want to find:
%windows%java
or
%userprofile%administrator est.txt
I have no idea where to start. I do have this:
userProfile = Environment.GetEnvironmentVariable("userProfile")
Read The Variable Rgb_triplet Array?
Apr 15, 2009I have binary files to read with this structure:
Code:
Palettes
Palette files have a slightly different header structure as follows:
type pal_header = record
[Code]....
I can hard code each value, and read it with binaryreader, but I suspect that is possible to define a class or a structure, and read it at once with serialization, altought I are not sure on how to read the variable rgb_triplet array.