hi I am writing a C# windows program which will get datatable from database = through ODBC connection then I show the the datatable on DataGridView. The problem is that before the datatable get returned, the GUI freezes. = I can't move it=20 On the program, I have different queries to get the...more >>

Hello All, I am developing a database front end in C#, using Windows Forms as provided by Visual Studio.NET 2005. I have several fields that are of the SQL Server 2005 datatype "money" and as such, I would like these fields to be displayed as currency on my Windows Forms. I am trying to fig...more >>

Hi, Just a quick question... I am trying to bind the SelectedValue of a combobox to an ArrayList column, and can't quite get it. No problem with the DataSource, DisplayMember, and ValueMember. My code is below, with the problem line in **** Thanks. John Class MyForm Protecte...more >>

Hi, I have two related questions. The DataGridViewColumns that ship with the framework don't seem to be able to bind to collections. I'd like to build a custom column that will handle a specific collect type (a custom object which I've developed). How can I make the column only accept bi...more >>

I have a window form with a drop-down list and a datagridview. The user gets to choose the table that he wishes to see from the drop-down list, and the datagridview will show the results. Whenever he select a different table, the code just changes the datasource. The problem I'm having now...more >>

Hi is there a setting to allow the datgrid to allow edits but prevent new lines being added thanks jonathan ...more >>

Why is it that when I signal a PropertyChanged event through the INotifyPropertyChanged interface for a specific property, all the databound properties for the same object are pushed to the controls they are bound to. I'd just like the one property that is changed to be updated. Any ideas w...more >>

When I create a new DataSource and then look at it in the DataSet Designer I notice some issues. Fields which in the database which do not allow NULL have the AllowDBNull propery set to true. Fields in the db which allow Nulls have NullValue property set to ThrowException. Also If I ch...more >>

Hi, I'm not sure if I going about this the correct way. I have some databound TextBox's displayed on a winform that are bound to my BindingSource. When I make modifications to any of these textboxes and then try to save these changes everything works fine. However I have a requirement...more >>

Hi, I have 2 tables in my dataset, and I'd like to create relations for them so that when I click on a row in the datagrid A showing table A, datagrid B will display all the respective rows related to table A in table B. I know how to do that if it's a 1 column to 1 column relation. But the ...more >>

Hi, I'm following several examples of how to build a master-detail form and these all refer to a DataConnector, which I don't have or see. Can someone please point me in the right direction as to how to establish a relationship in VB.Net 2005. Many Thanks Andy ...more >>

Hi, I have fields on a form bound to a BindingSource, I would like to be able to archive the orginal record prior to saving the most recent changes to the database. What is the recommended approach to doing this? Is there an easy way to view both the changed and unchanged state of the sa...more >>

Hello, how can I create a DataBinding that sets a property of a control extension like Tooltip? E.g. I have a Form with a Button and a Tooltip on it. How can I set the tooltip for the button via DataBinding? Jörg ...more >>

Hi guy, I have problem with databing. I have: First table that rappresent the main transaction and a Second table that rappresent the ports of a voyage. I want to bind two combobox from two fields of the first table and and a dataadapter for the second table. At design time I have binded cor...more >>

Hi I am creating a movie database with .NET 1.1. Some movies have more than one title. So movies are stored in table 'tblGeneralInfo' and movie titles are stored in a separate table - tblMediaTitle. There is a Dataset relationship (GeneralInfoMediaTitleRelation) between these two tables. ...more >>

Hello, I'm having an issue understanding when I should ignore the IEditableObject.BeginEdit call with respect to datagrids. I am working with C# .NET 1.1. I have the following objects I am working with. ContactCollection -> Inherits from CollectionBase and Implements ITypedList. Contac...more >>

I have a DataGridView which is bound to a DataTable in a DataSet (VS 2005). When I "re-" Fill() a DataTable which is bound to this DataGridView, I usually set the grid's DataSource/DataMember to NOTHING, remove the table from the DataSet, reAdd the table with the Fill() and finally rebind the ...more >>

We are writing a wireless system to facilitate data transfer between the factory and the office. As we are worried about the weak wireless signal, instead of using a MS SQL server, we are thinking of using something else that is saved in each computer, i.e. 1 data file per workstation. Somethi...more >>

Hi, I've got a DGV, bound to an object data source (ods). The ods has some objects in it, which are displayed as dataGridViewComboBoxColumns. Now, I bind these columns to a data source, which is a typed list, and set the DisplayMember to something sensible. So far so good, I run the projcet ...more >>

Hi, i have two forms and im having problems sharing the binding source between the two. I am using custom business objects, and in the designer set form one's binding source's data source to my business object type in the data sources window. The designer then places the code in the form: m...more >>

Can I use design-time data binding to bind two properties that have different types, if the types can be converted to one another? For example, let's say I have a control that takes an integer from one of its properties. I have a business object that takes a float for one of its properties....more >>