Implement Datagridview Using .net And Ms Access?
Oct 15, 2011
I am trying to implement datagridview using b.net and ms access.While I import the data from database, the connection is established and test connection succeeds. But, during the last phase, i get an error saying :
Could not load type 'Microsoft.VisualStudio.DataDesign.SyncDesigner.syncFacade.SyncManager' from assembly 'Microsoft.VisualStudio.DataDesign.SyncDesigner.DslPackage, version 9.0.0, Culture=neutral,PblicKey Token=b03f5f7f11d50a3a'
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Aug 17, 2010
I'd like to expose some functionality via a WCF service. I can configure WCF to instantiate a class per-request but am unsure how I can get a reference to a communal singleton if I were to have some functionality to store a list of calls to a method (call it LogMethod) via WCF in memory and return that list when the GetLogs method is called
I'm aware I could use a database/the file system to pass this data back an forth but in many cases, that seems to be overkill. Edit: It seems that nobody has a clear answer - I can't believe this is complex. Am I missing something obvious?
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May 15, 2011
How to implement like "Textchanged" in Datagridview. For example, when user insert mark in column 3(Mark), then the gred will automatically appear in column 4(Gred) based on mark in column 3. Let say user enter 95 in column 3, then gred A will appear in column 4.[code]....
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Sep 24, 2009
I am in the beginning stages of writing a VB.NET application for our customer's pc.This app will monitor machines through a serial port and display the status of those machines on the screen. In the future, we want to be able to run this program both on the pc and from any computer connected to the internet. What steps should I be taking now to make the web access step easier to implement?What is a good resource for learning how to make an application web accessible?
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Jul 23, 2009
in my datagridview, i have a column where, depending on values in other columns, I declare a new DataGridViewImageCell, set the image and then attatch it to the grid (brief example below):
Dim cell As DataGridViewCell = New DataGridViewImageCell
Dim img As Image = imgList.Images("comments")
Dim i as Col = 1
cell.Value = img
grdHeldOrders(column.Index, i) = cell
When i click on the column header in question to sort, I get the exception "At least one object must implement IComparible". I kind of guess this because certain cells are different types but I'm not sure how to get around the problem and where to implement IComparible. Does anybody have any examples?
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Jan 15, 2010
I typically dont create interfaces unless i have to, however in my current application i have to create interfaces in the Data access layer. I'm a in a minor confusion that hwo do i create those interfaces more how to implement them: the following code might make things clear:I have the following class and interface in the data access namespace
[code="vb"]Imports ConsoleApplication8.BusinessLayerImports ConsoleApplication8.DataAccessLayerImports System.DataImports System
Namespace DataAccessLayer
Public Class CountryGateway Implements ICountryGateway
[code]....
1. Is this way implement the interface in the data access layer? (in this case the class CountryGateway access the database.)
2. I have been told that we should create interfaces than abstract classes espcially in the data access layer, is there a particular reason for this?
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Dec 17, 2009
I've now properly started implementing OO into my system (which I probably should have done from the start) but I just want to clear some best practices.So let's say I have a class called Job which contains information such as Description, Project Manager (Employee class), Value etc. at the moment, if I initialise the Job class it will initialise all the information held within it, even if I only want the job description. Is it best practice to do this or is it better to implement the class and access the database for values as and when they're needed? Or is it just better in those cases to just access the database directly?
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Jul 29, 2010
how variables declared with protected access in a base class are used to implement inheritance.
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Sep 27, 2011
I have been requested to implement a login form into a friend's Visual Basic .NET application. He specifically requested that I should do this using LINQ to compare the input to a table in an Access database. I don't really know why he imposed these restrictions, but who am I to judge? However, the problem is I am not overly familiar with VB .NET, or LINQ.
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Jan 21, 2009
I have a DataGridView, and I want to fill in some values in some fields automatically, ie, the form should enter those values by itself when a new row is added. To read the values from a row in the DataGridView, I was using the snippet below:[code]However, I can't use that method to write values. I would have used an update statement, but I actually cant use an update here, because I wanna fill in a few columns of the DataGrid, while leaving the rest for the user to fill in.Better still, is there some way to directly enter the values for a few columns in the bindingsource, and display only a few columns to be entered in the DataGridView? Basically, I have a PatientID field which must be entered automatically by the form, so I wanna leave this column out of the grid to save space. Meanwhile, the other columns, namely DrugID and Quantity must be displayed in the Grid, and the user must be allowed to edit them.
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Aug 13, 2010
How can i send a table values into DataGridView? I am using Access Database.And one more thing i want to know that.Before sending values into Datagridview i need to work 2 or 3 tables and that result should be keep one Temp Table , that TempTable i want send to DataGridView.Here 2 or 3 tables work means i want to applay leftjoin between two tables and coming result should be keep one temptable and again i want to right join with temptable to other table.This Concept i recently worked on VB, now i want to do work on VB.NET.Is there any way to handel this task? Any i how i am sending Code which i implemented same concept in VB.[code]Here in VB code i used Functions, i called Functions in the FORM and i declared the Functions in the Module. By using Funtions and Recordset i did job. But how can i handle in VB.NET?
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Oct 12, 2011
The data from field dInc_part is not displaying on the datagrid which has column header. But it display on the new datagrid wherein there is no column or rows yet.
Here is my codes :
Imports System.Data.OleDb
Public Class frmDailyInc
Dim con As New OleDbConnection
[code].....
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Nov 22, 2010
Currently I have DataGridView box, clicking generate button fills it with a query from the database.I want the add button to add another row filled using the same query, so far I cannot get it to do it.Current generate button code:
Me.TableAdapter.FillBy1(Me.DataSet.App)
Add button code:
Me.DataSet.App.Rows.Add() - this does add a new empty row
I tried sticking the generate code inside (between add brackets) it but that just did the same thing as the generate code.
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Jun 21, 2010
Basically I would like to have an sql statement which selects all the bookings from a table in microsoft access callled tblBookings where a certain date (selected by a datetimepicker) selected in vb.net.
The field the date is in access is bookingsdate and that is a shortdate aswell.
The problem is that even if the dates are the same the headers come up in the datagridview but no data.
This is my code:
Dim con As New OleDb.OleDbConnection
Dim OleDBCon As System.Data.OleDb.OleDbConnection
Dim ds As New DataSet
[Code].....
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Feb 5, 2009
Im making a program that displays television shows and the time they are on. Im using a datgridview and a MS Access Database and i got it to add items at the right times and I can delete the items but i have to use e.rowindex as the value object for the delete dommand.[code]...
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Apr 17, 2012
I'm familiar with SQL to an extent from PHP, but I've never worked with databases in VB.net before.I'm making a scheduling system to try and learn how to work with databases, and I have an Access database, that is already populated with data, has all the foreign keys and associative tables, that I need to connect to a DataGridView in my Windows Form.This is basically what I need to accomplish:-Have each table of the database display in it's own DataGridView.-Have changes made in the DataGridView/Windows Form in general... actually update the Access database(I would for example, schedule a new course(by clicking new course, and then selecting the appropriate values for each field), and it would check the make sure the student isn't in a class at that time, that the classroom isn't taken already, and the the instructor isn't busy at that time on that day)
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Jun 18, 2012
I have a datagridview in my vb.net form displaying data from ms access file A , table A , is it possible for me to export the data in the data gridview to ms access file A table B?? i'm not using sql.
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Jan 23, 2012
working with DataGridView and MSAccess. I have 3 combo boxes that will give me the search data to use to fill in the DataGridView box. I am only showing 3 items in the DataGridView. Can someone lead me to some code I can use to help me setup the query or code I need to fill out the DataGridVeiw box based on the 3 items I have.
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Feb 25, 2011
I have a datagridview with a combobox coloumn. A few items have veen added to it. (Say Furniture, Property etc.).I wish when I select Property, the column 2 of my current row should get text Property.Which event to be fired for this. I tried _CellValueChanged etc. but that did not work.
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Jan 4, 2010
I got the code below from a book but it doesnt seem to work:
[Code]...
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Oct 15, 2011
I am happy that there is a forum like this with very supportive people.So on topic.I am a student creating an Inventory System software for my school using VB on VS 2008.I am having trouble saving items from a DataGridView to Access 2007.The codes I browsed here are quite different from what instructors teach us at our school.These are some of the codes we are using to save items from textboxes to Access 2007 database with a table named studenttable and database named student for your added information.
[Code]...
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Feb 5, 2010
I have a little problem with converting data from a datagridview to my access 2007 atabase.t's been some years since the last time I've opened Visual Studio 2008. So, probably it's something easyo do.
This is my code so far:
Dim i As Byte = 0
While i <> dgInput.Rows.Count
[code].....
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Jun 5, 2011
I am working on this program and need read info from an access database to a DataGridView. Now that part i can do. the part i cannot do, and the code i dont know what it is, is to save or update the newly edited data to the access file.
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Feb 1, 2010
Datagridview With Access - The Delete Is Not Working
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May 15, 2011
I'm using access as my database and vb .net 2008.My problem is i change a field into 2 ecimal places and when i debug my program why my data in the datagridview not a 2 decimalExample : in access TotalCost = 200.00in vb form datagridview TotalCost = 200
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Oct 15, 2011
Visual Studio 2010 with Provider=Microsoft.ACE.OLEDB.12.0 ConnectionI have tried multiple ways to do this fought through Concurrency issuescurrent code gives no errors however when I re Fill DataSet nothing has been removed from database...
Current code for Button1(reload data), Button2(delete row):
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
If you remove the AcceptChanges I get a concurrency violation for Deleted row information cannot be accessed through the row.
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Apr 7, 2010
I have a table in Access called 'tblRealTime' with a few rows of data and I want to display it in a DataGridView object on my form. When I run the program I get no errors but nothing shows up in the datagrid. My code is below:
vb.net
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ConnString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|K0201227Project.accdb;Persist Security Info=False;"
[code]....
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Dec 11, 2009
I am trying to learn my way around VB.NET after working in other languages including VB6.I am trying to display an Access table with a DATAGRIDVIEW. All I get is a blank grid. Can someone help me fix my code? I've been playing with this for a while and don't really know what I'm doing with .NET well enough to find the problem. [code]
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Nov 14, 2011
What I'm looking for is a snippet on how to export data from a datagridview to an access DB. My other question is fairly simple what code would I use once the data has been entered to account for the addition/subtraction. I know these are fairly
simple questions with probably incredibly easy answers, but once again the first time I've picked up a programing language was a week ago. Hey trial by fire works 70% of the time all the time.
Imports System
Imports System.Data
Imports System.Data.OleDb
[Code]....
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Dec 1, 2010
I have Access database that I am connecting to as such:
Public dbE As DAO.DBEngine
Public db As DAO.Database
Public sql As String
[Code]....
While I can query for certain data, I want to know how to show a whole table in DataGridView. For example, I have a table called phoneNumbers and I want to show the whole thing in DataGridView3 instead of parts of it.
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