I'm displaying a list of objects in a DataGridView. Everything was working fine. Columns were automagicaly added to the DataGridView based on the properties of the objects. Now I changed the class I'm displaying in the grid to implement ICustomTypeDescriptor. But now the grid now no longer shows any columns or rows when I set it's DataS...
I have a WinForm App that uses multiple DataGridViews. The DGV's used to be bound to DataTables in the old SProc's DAL. As I was converting the SProcs to LINQ I originally was following suite but I am wondering if that is the "best" way. This is a sample of what I am doing. internal static CmoDataContext context = new CmoData...
Hi, following scenario. I have a datagridview and a progressbar, datagridview is being filled with some datas from active directory. Filling my datagridview takes about 3 minutes. Now, while my program is working everything is fine until I switch windows - like for example open web browser or anything else. When I swich back to my progr...
i got a code to add rows in a datagrid which adds only one row but i need to add more than one row for each(DataGridViewRow^ row in dataGridView1->Rows) { if(row->Cells[0]->Value != nullptr) { System::Int32 nValue = row->Index; String ^strFood = dataGridView1->Rows[nValue]->Cells["FoodName"]->Value->ToString() ; ...
I have a datagridview whose source is a datatable. There are orders and food names columns. I insert new values into the this datagridview and delete from the table. when I select one row and delete it, selected color moves to the top, and if I want to delete one more order for same food, I have to reclick it each time. How can I solve t...
I'm creating a simple application that simply populates a DataGridView with a strongly typed DataTable. My problem is that all the cells show up empty despite containing data, I have a CellDoubleClick event which can pick up the underlying value of the cell (which is typed as expected) but the column is shown as empty. Objects of type ...
Usually when I add a control to a form using the Visual Studio GUI it writes all the code that defines the control is in a separate partial class file named ".Designer.CS". This partial class usually contains private fields for each control so the non-designer partial class can access the controls. I've added a DataGridView in a GroupBo...
hi all, the below mentioned code raises error "SYNTAX ERROR IN INSERT INTO STATEMENT" here i took name and number field has text no as autonumber(primary key) con = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:/ppd/db1.mdb;Jet OLEDB:Database Password=techsoft"); da = new OleDbDataAdapter("select * from con...
I have a DataGridView that has a class as its DataSource. The class contains an ID string, 2x DateTimes and a Boolean. I have written some code to change the text of a row that matches an ID I pass to method to Red, but nothing I have tried works. This is what I have so far: public void ShowInstanceAsTerminated(String id) { forea...
I'm trying to mimic what every other tabular view does with the DataGridView control, but I can't seem to get the headers correct. I want a blank header to the right of all headers, that does not move, and is not actually a header. Is there a way to paint the default header along the top? Basically, this is my problem:HERE ...
I'm creating a control that should be able to take any kind of list. Essentially the following code: void BindData(IList list) { BindingSource bs = new BindindSource(); bs.DataSource = list; this.DataGridView.DataSource = bs; } Now I have a textbox that I want to use to filter the data in my grid. I figured it'd be as ...
Hey, im working on a project and i have to get the name(header text) of selected column in my listbox or textbox from datagridview, when i select any column it shows the name of that column in textbox or listbox.. i'll be very thankful to if you guys kindly help me out in this matter.. im trying to use the code on DataGridViewHeaderClic...
Hi everyone, I have a DataGridView with custom columns. But when i add a "DataGridViewComboBoxColumn" and give to it a list with my custom class as datasource then i had the following error: The following exception occurred in the DataGridView: System.ArgumentException: DataGridViewComboBoxCell value is not valid. New EDI...
I want to override the behavior of a mouse click in the DataGridView header/column cell (top, left cell). That cell causes all rows to be selected. Instead, I want to stop it from selecting all rows. I see an event for RowHeaderSelect and ColumnHeaderSelect but not one for that top, left header cell. Any ideas? Am I just being blind...
Hi there, I'm using a DataGridView binding its datasource to a List, and specifying the properties for each column. An example would be: DataGridViewTextBoxColumn colConcept = new DataGridViewTextBoxColumn(); DataGridViewCell cell4 = new DataGridViewTextBoxCell(); colConcept.CellTemplate = cell4; c...
I have developed a Windows Forms application and it has a datagrid with checkbox. If I press a button then I want to get all checked rows and do some operation on them. The problem is that when button is pressed it does not recognize the latest checkbox action. It is like one step behind. My code is: private void copyToToolStripMen...
Hi, I'm having some issue getting a row filter on my dataGridView because the DataMember of the dataGridView is itself a member of the larger bindingSource List object that I am using as a datasource. (thats a mouthful, sorry). Heres some pseudo for my structure.... class DataDisplayObject { public string Value { get; set; } p...
i have a DataGridView in vb.net that's bound to a SQL server table. The table is being updated by another program. i use a timer that fills the table adapter and merge that data into the existing dataset, but this action has a bunch of UI repercussions. How can i make sure this update affects the user as little as possible? Mostly i'm...
I have a BindingList which is the data source for a Bindingsource, which in turn is a data source for a DataGridView. (The objects are purely managed, and do not have anything that requires calling .Dispose().) When I wish to clear the list, and hence clear the grid, I am simply calling BindingSource.Clear(), which as far as I can tell...
I have a DataGridView. Some of the cells receive their data from a serial port: I want to shove the data into the cell, and have it update the underlying bound object. I'm trying something like this: SetValueFromSerial (decimal newValue) { dataGridView.CurrentCell.Value = newValue; } using a string doesn't help: dataGridView...