I have a datagrid that has a checkbox... when a checkboxes are clicked, i am updating the records that are checked... This is what i have so far.... but i am geting an error.... where the OrderID is not being passed from the datagrid "dgOrders" to the stored procedure... but the checkbox ...more >>

Hi! My VB.NET 2003 Windows Forms application has components on the form bound to the dataset datatable. Editing and saving is working fine, but data source SQL Server's table has column named as "SaveTime", Data Type = datetime, and Default Value is (getdate()). It's bound to TextBox, and T...more >>

Hi all I am getting the following error when binding some TextBoxes to an array of DataRows: Property accessor 'AddressLine3' on object 'dsMyDataSet+AddressRow' threw the following exception:'Cannot get value because it is DBNull.' I have been binding to DataTables until now, but I do nee...more >>

Hi all, I have a problem using databinding on a windows form. On the form I have a typed DataRow. DataRow type: Name String Blocked Boolean On the form I have two control a Label and a CheckBox. The databinding is added with the following code: ...more >>

Greetings, I have created a simple .exe application that queries charge numbers for employee timecards from a SQL server. It works fine on my local machine. When I copy it to the server and run the application, I receive an unhandled exception "Invalid Element Value." What would cause t...more >>

Hi I have a texbox bound to a property in a custom data object. When I edit the textbox directly the data object is updated, but only when I leave the textbox. However if I change the textbox's text programatically the data object is not updated at all. Why is this and how do I get the d...more >>

Hi, Let's say I have one datatable, that I want to use as the datasource for 2 dropdowns. So both are bound to the same one. But now, when I select a row in dropdown A, the selected row in dropdown B changes to the same thing! Each dropdown represents a different column in the main record ...more >>

Hello, I have a windows form application written in VB.net. When I create the first instance of the form it loads fine. When I try to bring up another instance of the form an exception is generated ( weather the first form is still loaded or not). The exception is "Databindings could not find...more >>

I have a series of user-bound controls that are associated with a dataset, and need to be able to move the displayed data row in one control based on events in another. I have all of the controls bound to the same dataset on my form, and the navigation controls are passing a complete DataRo...more >>

Hi to all, I get this ArgumentException just when: ((System.ComponentModel.ISupportInitialize) (this.dataTable2)).EndInit(); runs inside InitializeComponent()... It raises when I set primary key on the table: The code I use is: this.dataTable2.Columns.AddRange(new System.Data.DataColu...more >>

This is a multi-part message in MIME format. ------=_NextPart_000_0016_01C4B6F2.16B889B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello group! I've created a collection class that implements ITypedList: class MyCollection : IBindingLi...more >>

I have a windows application that returns 10s of thousands of rows to a DataGrid (for all intents and purposes you can assume that it's a DataGrid, I'm actually using the Infragistics UltraWinGrid though). Due to the ever growing amount of data I want to implement some sort of record paging....more >>

When given the name of a control, is there a way (programatically) to determine its databinding?...more >>

hello!!!!!!!!!!!!! ...more >>

Can I bind controls to MBR objects? When I try to make a new binding with a MBR object, I get the exception "Cannot bind to property or column 'PropertyName' on DataSource.", that I don't get in tests made with a client class. I looked for some information about it, but I couldn't find anyth...more >>

I have an ArrayList of Custom Business Objects that I need to bind to a DropDownList. The DataBind works, but I cannot figure out how to have the value/text fields of the DropDownList to reference the object properties. For instance, assume I have an ArrayList of UserInfo classes. The UserI...more >>

Hi Group, I am having a problem with datagird and combox box. Say for ex, I am populating datagrid with dataset that contains table name "Orders". This table contains one column by name "CustomerName". I am having one more dataset say "Customers" and I populate the combo box with the Cust...more >>

I have a combobox bound to a table with a relationship=2E When the= combobox selection changes the I change the values displayed=2E It= works fine but only on the field in the same table=2E It= relationship doesn't allow me to display values from the other= table=2E Here my code: //Add Re...more >>

I'm trying to bind to a datagrid a custom class with complex property (custom class). The top data is binding fine but I cannot access the sub-class property. Here are my classes... I can bind the contact.id, contact.lastname, contact.firstname without any problems however I cannot seems to b...more >>

Hi all, I am getting this ORA-01008: Not all variables bound error when trying to update an Oracle table from a datagrid using VB.NET. 'Code to load Datagrid--------- Private Sub TransactionDetail_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load ...more >>

I'm re-posting this to make sure it gets picked up by support because the related question was answered: I have an entity object (not a collection) with a property "Height". It's bound to a TrackBar and a TextBox. I found out that I needed to call BindingManagerBase.EndCurrentEdit() on the ...more >>

Hello, I am having a problem with dataset. I am using vb.net, oracle, ado.net. I am having a dataset(ds1) from which i loop through and add it to another dataset(ds2). Calling ds2.acceptchanges in the load of the form. And all the data gets displayed in the grid. The user can modify any...more >>

I'm trying to bind a TrackBar to an entity object of mine: myBar.DataBindings.Add( "Value", imgConvData, "Quality" ); It seems simple enough, and the TrackBar does indeed pick up the value of "Quality" when the DataBinding is first set. Unfortunately, changing the value of the TrackBar (vi...more >>

Hello group... I've created a collection class that implements the following = interfaces: IBindingList, IList, ICollection, IEnumerable and = ITypedList: abstract class DataCollectionBase : IBindingList, IList, ICollection, = IEnumerable, ITypedList { private ArrayList innerList =3D ...more >>

I want to have an action happen when the user double clicks on a cell. Theonly way I have managed to get this to work is put the code in the grid's double click event, click in the cell - then double click the row. Or if I click in the area of the cell that does not highlight, then it wo...more >>

Hello, I'd like to alter the font, including the background and the foreground color of individual cells for a realtime app'. this.dataGridView1.ColumnCount = 5; this.dataGridView1.RowCount = 10; this.dataGridView1.Rows[2].Cells[3].Value = "hello"; ....? Can someone help ? Thanks, Ma...more >>

I am binding an arraylist of objects (class Invoice) This works fine and binds all the public properties to the datagrid. However, I only want to show *some* properties e.g. No, Detail and TotalValue -- not all the public props. After I call my gridSummary.DataSource = invoiceList; then I...more >>

well, what's the difference between BindingManagerBase and CurrencyManager?Instead of BindingManagerBase I have tried to use a currencymanager in my code, but the result is still far from my expectation. UI of my program like this: --------------------- | btnQuery | btnAdd | --------------...more >>

I have 2 checkbox controls on a form. Both are bound to a different field in one underlying datatable with their 'checked' properties . When you click the first checkbox I the CheckedChanged event is triggered in which I set the checked property of the second control equal to that of the f...more >>

hi, well this seemed a simple tax in the begining but ... I have a datagrid bound to a dataview sorted by name. i have a reference to a datarowview, and i want that datarowview to be selected in the datagrid. datagrid.select need an index, and I m not able to find a way to get the inde...more >>

I am writing a front end for an existing Access database (which i dont really want to change if i can help it) in VB.NET. For simplicity, i am databinding all controls on the screen using an untyped dataset. I have a phoneno column in the database which is setup as follows: Required: No ...more >>

I know this is most probably a regular question but after searching and searching and purchasing over 5 books, i still have not found a simple sample. If someone could please oblidge i would really apreciate it. If the sample could do/have the following Form 1: DataSet bound to NorthWind Pr...more >>

I have a textbox bound to a custom object property that accepts only positive percentages as values. I use a regular expression in the 'Validating' event to check the entered data. The regex is written such that the user can enter 0.25 or 25% and the result will be the same. It does not a...more >>

My DataGrid shows a table 'Orders' which has a foreign key column 'CustomerID'. Instead of displaying the CustomerID I want to display the customer name. I accomplished this by creating a 'CustomerNameColumn' which inherits from 'DataGridTextBoxColumn'. Basically, 'CustomerNameColumn' overr...more >>

A typical scenario in many applications is to be able to be able to select one or more objects in a list and then be able to edit one or more properties of those objects at the same time. Example: You have a list in one side of the dialog, bound to a datatable, and you have a text box besid...more >>

I've reduced my problem to the following code snipped (using the Northwinds database). It's in VB.NET with a single form containing a single combo box and some other control that can receive focus. Place the code in the form's Load event: Dim connection As SqlConnection = New SqlCon...more >>

Sqls2k / vb.net winforms / ado.net / newbie This code loads a Datagrid from a customer id supplied by a combo box. It only works the first time I open the form. I will correctly get the customer I select in the combo box, but it will not get any subsequent customers I select in the combo box. ...more >>

This is the first program I've tried to write in vb so I'll apologize in advance for my terrible code. :) I've got a form with a tab control on it. I'm working on the first tab, binding data to controls in it. So far I load data, the navigation buttons and search button work, and I can add ...more >>

Hi, I have a problem with exceptions in data binding. I have a normal windows form with 2 fields on which binds to an Custom List which inherits from CollectionBase and imlements IBindingList and IEditableObject. I would like to throw an exception in one of the bound properties if the ...more >>

Hi! I am trying to use a datagrid control on a smart device application. I managed to see my data on it but i have to arrange the width of columns. How can i do that? I ve tried to use tablestyles but couldnt manage. I get System Null Reference Exception... ...more >>

Hi all, I am trying to implement a complete IBindingList for my Collection Class but I cannot find any examples on implementation of Find or any of the other functions typically implemented with NotSupportedException (like in the MSDN). Any hints, help, or pointers are greatly appreciated! ...more >>

I've got a form with fields bound to a datatable. The datatable is populated from a sql server. I've been using a next button with form.bindingcontext("datasource","datatable").position+=1 to bind the form to the next record I want it bound to. That works fine. My question is: I want to b...more >>