On my form I have datagrid displayed and few textboxes displaying data relevant to the particular row in the datagrid. The Datagrid is bound to Dataview. Dataview properties - allowedit and allownew are set to true. A textbox 'txtfirstname' is bound as : txtfirstname("Text",datavw, "First Name...more >>

Is there a way to associate an arraylist to a listview via databinding? I'm working in c#. Do you have some sample code? Thanks a lot....more >>

I've got a simple class (with getters/setters) that I add objects to an arraylist and bind to a datagrid. If I don't use my own tablestyle the default one displays bools as checkboxes. When I use my own tablestyle by setting mappingname = "myclass[]" it displays the checkboxes as "true" and ...more >>

Hi there! I am new to databinding in .Net and I think I am going to get crazy... What I need to do is this: 1) Create a new form for the user to enter a new Product 2) Save changes (if any) when the user closes the form But I still couldn't get what I want, even after searching in Google....more >>

All my varchar values returned through the dataset have additional white spaces to the end. If in my database I have firstname='fred' and lastname='ven' when I concatenate firstname and lastname value returned by the dataset I have 'fred ven '. Does someone have an i...more >>

I have created some custom collection classes that inherit= CollectionBase and implement IBindingList, IListSource, and= ITypedList=2E I'm no expert on the subject, but I have been able= to create custom classes that successfully bind to data grids,= react to ListChanged event, etc=2E All is...more >>

I've done this (I've left out a lot of stuff like the SQL definitions): odbcDA_TaskActivities.Fill(dsTaskActivities, "Tasks"); odbcDA_TaskActivities.Fill(dsTaskActivities, "Activity"); DataColumn parentCol; DataColumn childCol; parentCol = dsTaskActivities.Tables["Tasks"].Columns["uidTas...more >>

Hi guys Can't figure out how to do the following: I use a separate form for editing a row in a table. The form has its own dataset for the edited and lookup data. Now, how do I use such a layout for adding data ? If I run DataSet.DataTable.AddRow() then all the constraints are evaluated ...more >>

Hi All, My be I am missing something here. This is what I am trying to do. I have a DataSet with 3 tables; say, Customers, Orders and OrderDetails from the Northwind database. I have established relations between the 3 tables. I am displaying the data in 3 separate datagrids, all working fine....more >>

I am filling a ComboBox like this... Private Function LoadGradeTypes() As Boolean Try Create the data set ds with one table containing the lookup data... ' insert blank first item in the table so that the combobox will start with a blank Dim tbl As DataTable = ds....more >>

I have a fairly typical form with some textbox controls bound to a data table. I am processing the validating event for these controls and setting e.Cancel depending on the outcome of my validation. Somewhere between the control validating event and the control validated event, data binding tri...more >>

I use databinding to bind property from a class to various control on the form. when i change the class, i remove all the databinding but the datasource remain in the bindingcontext, is there a way to clear the bnidingcontext? thanks you ...more >>

Hey I have a form with som textboxes that uses databinding like this: The "mysource" contains objects with Number, FirstName and a Type box1Txt.DataBindings.Add("Text", mysource, "Number"); box2Txt.DataBindings.Add("Text", mysource, "FirstName"); This works find a...more >>

If I refill a DataSet by first changing the SQL in the DA, is there something that I need to do with the bound controls to force them to display the new results? ...more >>

Can anyone tell me the relationships between the following properties of a ComboBox: DataBindings.SelectedItem DataBindings.SelectedValue DataBindings.Text DataBindings.Tag DataSource DisplayMember ValueMember It seems to me that there would be some conflict here if one were to use all...more >>

Anyone know what this means: An unhandled exception of type 'System.Data.Odbc.OdbcException' occurred in system.data.dll Additional information: System error. I get the first line. But is there a way to get more detail about what happened than simply 'System error'? ...more >>

Hi, On my form I have a combo box showing categories and a list box that shows events that belong to the category shown in the combo box. I have set up a DataSet with a Category table and an Event table, and a relation between the two tables (using the designer). I bind the combo box to the...more >>

Hi, I have a situation where I have to bind a DateTimePicker control and a datagrid to the same data source. In the DateTimePicker.Validated event, I have to perform certain edit checks. The event fires when the user selects a date from the calendar. That is fine. However when the user has...more >>

I must have something wrong with one of my tables (the underlying data on the server) because this code works: cmd.CommandText = "SELECT * FROM \"tblControl\""; and so does this: cmd.CommandText = "SELECT * FROM \"tblTasks\""; And likewise with any of the other tables. But this doesn'...more >>

I posted this to microsoft.public.dotnet.framework.adonet a few days back but wasn't able to prompt even an insulting reply. <grin> I'm hoping to have better luck here... at least a hint on where to post it next. ---------- Is there a way to create a data source within an application t...more >>

Hi, I have a custom type DBNullableInt. It is basically an Int32, which can be null (required for database). Then I have a Person class with property Age of type DBNullableInt. In a form I have a textbox (Name : textBoxAge) and an instance of a Person class. I set up data binding: textBo...more >>

Hi, I have coded a class which inherits from DataSets and creates two datatables and a datarelation between them. My intention is to drag it to a form in order to bind the dataset to several controls. When I drag the dataset to the form, the designer automatically adds code in the Ini...more >>

Hi, I have a list that implements IBindingList that is bound to a custom control (a subclass of ListBox) on the main form in my application. When the list is added to, removed from or an item in it is edited it throws the appropriate ListChanged event that is handled by the control which u...more >>

Perhaps my expectations are off, but I'm thinking that I should be able to move the row pointer in a DataSet.Table. When my user clicks on a dropdown that displays a specific field within a DataSet.Table I would like the row referred to to become the current row such that all of the other con...more >>

Hi. I need to navigate a dataset bottom-up. or in other words what a normal foreach statement navigates the rows in a particular table from the fist record to the last but my requirement is to navigate the rows the other way around [from the last record to the first]. can somebody help me on t...more >>