Bind TWO Different Database Tables To ONE Textbox In VB?
Mar 20, 2011
I was wondering if there is any way to bind TWO different database tables to ONE textbox in VB? I've spent the whole day going through tutorials and different webpages and I've found nothing at all on this...
Well let me try to explain what I want to do exactly: basically I have multiple buttons on 'Form 1' and a textbox on 'Form 2' asking the user to insert a value which will then go to an Access database. But here is where it gets tricky for me: IF the user presses Button 1, the Value inserted on Form 2 will go to a field in the database whereas if the user presses Button 2 to open Form 2, then the value will go to somewhere else and so on.
This would be easy to do if I was to create multiple forms or multiple textboxes, 1 for each button but what I really need is 1 form/1 textbox that would work for all of them... [URL]
I have a datagridview who's datasource is a BindingSource. The problem that I need to resolve is that the DGV has 6 columns, 5 of which come from the same database table, while the other column comes from another database table. Is there anyway of configuring the BindingSource that will make it contain all 6 columns?
The same grid in Part 1 works in the way that when a user selects a row, textboxes and comboboxes are populated with the DGV Row of data in order for the data to be modified. When the user makes any changes, this modified data needs to update the DGV row or BindingSource. How do I associate the changed values back to the BindingSource or the DGV?
In the form I have a ComboBox (cboA_ID) to select the TableA record (DataSource = TableA, DisplayMember = A_NAME, ValueMember = A_ID) and a TabControl where controls on each tab are bound to fields in either TableB or TableC.My question is, is it possible to bind cboA_ID to TableB.A_ID and TableC.A_ID?This is my first database application so if there is a better way to do this I'm all ears. I have set everything up using the wizards in Visual Studio 2010, so I'm still not 100% familiar with what all the various TableAdapters and DataSets do.
I think my subject sums up what I am interested in knowing. I am looking to create a chart where Series1 is from Table1, Series2 is from Table2 in the given Dataset. My code below doesn't throw any errors, but it appears to be grabbing the data for each series from the first table.
Imports System.Windows.Forms.DataVisualization.Charting Public Class Form1 Public Sub New(ByVal ChartData As DataSet) ' This call is required by the designer. InitializeComponent() [Code] .....
a table of addresses and a bindingsource for the table a enum list of address type: 0 = "Mailing", 1 = "Physical", 2 = "Shipping" etc...
I would like to bind the datasource of the combobox to the enum so it displays "Mailing", "Physical" etc. Then I would like to change the bindingsource position of the address table based on the user selection of the combobox.
Here is what I have so far:
cbxAddressName.DataSource = New BindingSource(ApplicationEnums.GetEnumList(GetType(ApplicationEnums.CompanyAddressType)), Nothing)
I am using VS2008 and SQLite. I have created a database and several tables and am attempting to populate the tables with data from arrays.
The following code (example) works fine but stops after it inserts 30 to 50 records. I am running the VB code in debug mode and when it stops, I press pause to see where it is. It stops on "SQLcommand.ExecuteNonQuery()" and when I press continue (F5) it will insert another 30 to 50 records.
I do not get an error message. Is this a timeout issue? How do I keep the loop running to the end of the array?
I am populating a textbox (txtFileNature) with a value from a popup window. The textbox has an onfocus handler set to
onfocus=("this.blur();")
The problem is that I want to do some calculations based on the value of txtFileNature and want to display the result below it. In which event can I can use my VB code. I can't use the textchanged event since I am not typing in the textbox.
I try to bind a textbox to a datatable but i cant.. I checked if the datatable is filled (it includes the results of a sql query)and it s ok.. i can depict the result in a combo box but not in textbox. I wait for only one result that s why i need textbox instead of combo.. that s my code..
how do i change the display member of a ComboBox after i have entered a code in a textbox that it represent the combobox value?example
Code: 02-001 Combobox: Provider X
if i change the code the provider combobox must change and if i change the provider combobox the code should change!..
if e.keychar = chr(13) Then combobox.valuemember = textbox.text combobox.displaymember = me.stockdataset.selectprovider(@textbox.text) end if
this code change the combo box display member but if I change the comobox by clicking it the code on the textbox doesnt change, to its corresponding code...the combo box is bound to the provider tables....
I have a module where i have specified the connection string as below:
Public Function Connection() As String Return "Data Source=192.168.0.1,1433;Network Library=DBMSSOCN;Initial Catalog=test;User ID=sa;Password=123456" End Function
Then i have a form which has two textboxes. What i am trying to do is bind the two textboxes to a dataset in the following way:
Imports System.Data.SqlClient Public Class Form1 Inherits System.Windows.Forms.Form
I'm trying to get bind a textbox text property to an observable collection, and report changes back to the collection. The ContactLog property gets set from the calling page.[code]....
Ive already created a connection to my database and by using databinding can retrieve data from the database and display it in a textbox. However i want to keep updating the same textbox at certain times, such as when a button if clicked, with different data but once i try to overwrite the text in the textbox i get this error message. [code]...
I was thinking I should just change the value to "" when a null value has been read from the datasoure. But then I thought maybe there is a property that allows this. is there?
my code below doesn't work Private Sub DataGridView2_CellContentClick_1(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs)
i have a form issue and return form. where Issuer_ID is the primary key, this form uses for boht emp and for student issuing book. at run time the user has to select a radio button for student or for employe. if he select student so after entering the full information when he press submit button so student query is execute and data stored in database, keeping the Employee field null, and when user select the employee radio button and after pressing the submit button, so employee querry executes and stores data in employee field, keep the student filed null. remmber and Student ID and Employee ID or foreign keys in isuee and return table and radiobuttons are not the part of database, its just on form.
now i want that when a user gives his issuer ID and at the lost focus event of issuer id, it is checked that if the record exists so the data is bind on the form, if does not exist so the user has to make entry, but if the data loads on form so how user will find out that this data is of student or of employee?
i want to read the data from the table to textbo.below is my code when i try to run it it shows the error following are error.IndexOutOfRangeException was Unhandled
Make sure that the max row on a list is is less than list size...
I have a DataGridView where we select a line and a new form appears so I can change the data.g:
edit.txtQtd1.Text = DGV.CurrentRow.Cells(6).Value.ToString edit.txtProd1.Text = DGV.CurrentRow.Cells(7).Value.ToString The data is loaded from that line to textbox's. everything goes fine, but when I edit the
"Cannot bind to the property or column rname on the DataSource"
Public Class CustomerUpdFrm Private RowPassed As DataGridViewRow = New DataGridViewRow ' Passed row variable Private Sub CustomerUpdFrm_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
I created a table in mySql named 'user' where fields are: UserID,UserFirstName,UserMidName,UserLastName,Username,UserType,AcctPassword,DateCreated, DatLastModified and IsDeleted.
I have a application based on the entity framework. I have extended one of the classes (Quotes) wit 'partial class', and within that i've created a method that is completely independant of any database properties. For simplicity lets say it looks like this:
[code]...
All is good, except i need to bind this to my a textbox in my UI and have the textbox update automatically when the property is changed (like a dependency property). This is proving problamatic, I've tried both invoking the onPropertyChanged sub that the entity framwork exposes and implementing intoifychanged. Both cause errors.
see i have a form in that i have following controls
.combobox .textbox .listview
the combobox contains all the column names of listview like docid,firstname,surname etc
when the form is loaded the listview is populated with some data from the database.
is there is anyway to autopopulate the listview control based on search term entered on the textbox.i heard about the "onchange event",but i'm not sure how it works .
First I have 2 tables, for example Customer and Orders, and in the database there is a foreign key relation between both. For clarity Orders have a foreign key field to the primary key of Customers, thus Customer is the parent and Orders is the child table of the relation. My application is a Windows Form application, and I add a dataset to the project, in which I drop the 2 tables, and the relations between the 2 tables is automatic added. Now I will om a form loop through the Orders table (witch is the Child table) and show in a textbox some fields of the Orders table and also the Name field of the related record of the customers table. Regarding binding a textbox fo a Orders field I do it this way,
Dim myDs As New DataSet1 Dim myAdpCustomer As New DataSet1TableAdapters.CustomerTableAdapter Dim myAdpOrders As New DataSet1TableAdapters.OrdersTableAdapter myAdpCustomer.Fill(myDs.Customers) myAdpOrders.Fill(myDs.Orders) Dim myBindingSource As New BindingSource myBindingSource.DataSource = myDs.Orders myBindingNavigator.BindingSource = myBindingSource TextBox1.DataBindings.Add("Text", myBindingSource, myDs.Orders.OrderIDColumn.ColumnName)
But now I can't find how to bind a textbox to a field of the Customers table witch is the Parent table of the relation.
