Hi, I have a DataGridView which contains a column of type DataGridViewComboBoxColumn. Im trying to bind the DataGridViewComboBoxColumn to an array of enums. The following is how my enums look enum myEnum { enumA, enumB, enumC, enumD } My array contains elements of type ...more >>

I'm using a form view together with a ObjectDataSource. In the FormViewItemInserted event I check if (1 == e.AffectedRows) e being of type FormViewInsertedEventArgs AffectedRows is always -1. No excption (e.Exception == null) is thrown and the record is added to the database correctly....more >>

Dear Reader, I have a DataGridView control on my form and when it's shown, the following error is shown: "System.ArgumentException: DataGridViewComboBoxCell value is not valid." The DataGridView's datasource is set using the following code: *********************************************...more >>

Hello, I have table with auto-id. Binding to a datagridview. One interesting moment: - the first time I run the application, I type some rows(in datagridview), and press onto Update (call method update of the tableAdapter). I got the error message: record with the Id = 1 already existed. I h...more >>

I have a series of controls (textboxes, checkboxes, and dropdowns) which I am binding to a list of variables. Each control is assigned at design time to a specific variable (by key). When that control's variable does not exist in the variable list, I remove the control's bindings and hide the ...more >>

I know that there is something stupid here, but I am pulling my hair out trying to find it, Please help!!. I have a Form that, with various Tab Pages, has 6 DataGrids. 5 of these DataGrids are using the defined table style and one won't. I can't find anything different between them. One tha...more >>

Hi all, I see that if I edit a data-row and I don’t move to next data-row using data-grid then that row is not added to the data-table and therefore dataset.GetChanges() returns null and no data is pushed back to the data-source. //MessageBox.Show("to lost focus of dgProducts"); thi...more >>

I am trying to set the NullValue within the Column properties of my Dataset in VS2005. The DataType is a System.DateTime. and when I try and change it from "(Throw Exception)" I get the following error: For columns not defined as System.String, the only valid value is (Throw exception). ...more >>

I'm working with vb.net 2005. I have a class that i've loaded up with my data. Then created a datasource off the class. I load up the datagridview with data from a class.. all this is working fine. I've got data. My problem is with the tag on the datagridview. I've gone in and bound it to ...more >>

Hi, I have an object within a collection. This object has an attribute that I need to bind to a datagridview column. I saw this thread http://groups.google.com/group/microsoft.public.dotnet.framework.windowsforms.databinding/browse_thread/thread/f92965be386f3a74 which described the need...more >>

Hello! I have 2 tables: Products (ProductID, ProductName) and Inventory(ProductID, Qty). I must display table Inventory in DataGrid (like in Excel) in order to user can working with it (input Qty for each Product). In order to the sheet look more friendly, I make o view Inventory_View( Produc...more >>

Hi, I am not sure if the correct format on my Subject line but I am having problem that I find very difficult sleep last 2 days. I have a CustomerTable, ProductTable and OrderTable in my SQL Server 2000. I create and Order Form that I can enter new order or search order by Product, Custome...more >>

When I pass a BindingSource from Form1 to Form 2 via the constructor I need to manually rebind all my once databound fields.. Why is this.. I also tried ResetBindings() and this doesn't work either.. Please refer to: http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=92942&SiteID=1 ...more >>

Hi, I have two forms within a c# winform app, one form contains a datagridview bound to a binding source, the other form contains a detailed view of that same binding source. what I am trying to do is pass the binding source from form one to form two within the contructor, as shown below,...more >>

I have a problem databind a ListBox to an array of objects defined as a nested class. The problem is that instead of displaying the text of the field, it displays the string "<namespace>.NestedTestClass+ProductItem", which as far as I can tell is the default value returned by ToString() of the...more >>

I have a minor issue with creating a dataset from an Access DB in VB2005. My Access DB has table-relationships going four tables deep. That is, the key field of table one has a one-to-many relationship with a field in table two. The key of table two has a one-to-many relationship with a field ...more >>

Hi, I'm fairly new to databindings and trying to get my head round how it works. We are developing a windows application which references a dll which is a custom object, Meeting, and the Meeting object contains a list of 'Races', i.e. List<Race>. The Meeting object is defined as a datasource (m...more >>

Hi, I wrote an applicartion that uses databinding to retrieve and store images from a database to a PictureBox. It seems that the databinding is storing the images in BMP format and I need to store them using JPG format.... I know that from the PictureBox I can save to a byte[] in JPG fo...more >>

I have a datagridview that is bound to a datasource. The under lying data is not from a database, but biz objects. The first colume (InUse) is a check box to determine if the rest of the row is enabled. When the row is not in use, it is grayed out in the CellFormatting event. After the user c...more >>

Hi all, Testing with Database : Nortwind Master Table : Customers Detail Table : Orders DataRelation : relCustomersOrders On Form_Load, DataAdapter fills the dataset with above two table and creates a DataRelation. Everything is OK. When I click on a row of MasterGrid(Customers...more >>

I have a masked textbox bound to a class in my business objects layer that displays the original value and allows me to tab to the other controls on my form. However, if I attempt to modify the value, it refuses to relinquish focus so I can tab to another control. The MaskInputRejected metho...more >>

I am writing an application (code snippet below) that contains a ListBox control bound to a DataView (consisting of a single DataTable which is part of larger DataSet). The user should be able to click on buttons that will move list items either up or down in the order that they appear in ...more >>

On a form we have a TextBox. It's Text property is data bound to a field in a data source. When you get the data from the database, the TextBox shows the data properly. When you change the text and then hit tab, the changes are written back to the bound field. We have a UserControl...more >>

Hi, im converting a VB web app to a C#. i have problem with the following line ds.Tables[0].Rows[ind].Item["taskid"] ERROR - 'System.Data.DataRow' does not contain a definition for 'Item' whats the alternate that i can use? please let me know Thanks ...more >>

Hay Microsoft, I am trying to implement an advanced BindingList, one that supports adding and deleted rows while filtered. I am having a bear of a time making heads or tails of the rules for when EndNew() and CancelNew() are called. I have gone ahead and written a test program to see when they...more >>

Hi. Can anyone tell me how can I access the property "DataSourceUpdateMode". The problem is that I have a DatagridView control binded to a DataSet and I don't want to update the datasource every time the row is changed after the value of a cell has changed. I want to update manually through my...more >>

Hi, I created a Windows forms app with a user setting of type Color. I then bound that to the BackColor property of a button. At run time the user may choose a new color for the BackColor and also sets the user setting. Yet, next time I run the app, the initial back color is teh default and...more >>

Hi, i need to write a application which gets the parameter of a file name and reads the file. the file has a list of paramters like ftp name, username, password, passivemode, etc and then it has to do a ftp transaction depending on the content of a file. is it possible? or someone ha...more >>

I create a WinForm app with some DataGridView controls using VB2005. I have a dataTable(dt1) contains, among other, some date columns. However, due to locally we represent date as dd/MM/yyyy format, I have written an additional function to create yet another dataTable (dt2) to replace the tho...more >>

I have status coming in from somewhere that will be displayed in multiple windows. Each window can be set to be filtered in a different way from the other windows. How do I implement this with DataBinding? Here is what I have: IStatus --> interface to the status object BindingList<IStatus...more >>

(VB 2005 - Windows XP Pro - sp2) The following will Bind and then Set the default value. I step thru the code and everything appears to work fine, meaning the Default value is set to 22. When the form does load the default value is set back to 0 (zero). Something so simple is driving me ...more >>

I'm using DataGridView to display data all this while... I read from the forum and found DataGrid is popular, may I know is it a component like DataGridView? where is it located in VS2005? I couldn't find it in toolbox... Thanks... -- Regards, Pedestrian, Penang. Message posted via Do...more >>