Scenario: Basically i have a System.Windows.Forms.DataGridView A class that inherits BindingSource and IBindingList A class that has 2 standard List as private properties DataGridView dgv = new ... MyBindingSource bindingSource = new ... MyList list = new ... The DataGridView.DataSource property gets set to the BindingSource and...
I want to add a tooltip using ToolTip class on a column of a grid in winforms. I want this because I need to extend duration of builtin grid tooltip in radgridview. If you can help me in settings the time of builtin tooltip of grid then it would also be sufficient. EDIT: Can anybody just tell me that is it possible or not? Thanks. ...
In .net objects like DataTable when you have two grids(Master and Detail) and add a row to the second one(Detail), The new row will have the Foreign-Key Values automatically. How can i do it(I don't use DataTables because they suck)? thanks. ...
If a user enters invalid text in a DataGridView's cell I want to prevent the user from leaving that cell and display an error icon in that cell with an error message in a tooltip. It seems that normally the error icon won't appear until the cell is no longer in edit mode. I found an example of how to get the error icon to appear while ...
I need to know which row is right-clicked on for the contextMenuStrip in a datagridview. Winforms, c#. ...
Ok, I have my custom class: public class FileItem : INotifyPropertyChanged { int id=0; string value=""; public int Id { get { return id; } set { id = value; Changed("Id"); } } public string Value { get { return value; } set { ...
I'm using values from a row on a datagridview, to build an image path to pass to a picturebox. private void dataGridView1_SelectionChanged(object sender, EventArgs e) { DataGridViewRow currentRow = new DataGridViewRow(); currentRow = dataGridView1.CurrentRow; string valueJob = currentRow.Cells[2].Value.ToString(); string...
I have a datagridview and once I populate the view with the data source I hide the columns that I do not need. For some reason the 1st column is not hiding. I have checked the column name and they match and the 2nd line executes fine hides the column for the EVENTID. I even did a messagebox.show( dgvTourOther.Columns("OTHERID").name)...
I'm making a VB.NET application with an SQL Server 2005 in the background. Naturally the user can not edit the database directly but will use a number of UI features to be able to add and modify the data. However, there are a few tables that should be easily accessible from the admin interface such as specific information about a vendor...
My application has a populated datatable and binds it to a ddatagridview by setting the datasource property. At run time I want to filter this table. When the user clicks a button I run the following code: dataManager.VDMSTables.DataTable.DefaultView.RowFilter = column + " LIKE '%" + criteria + "%'"; All the classes are populated cor...
Hi Here is my problem: I have DataGridView. It's source is set to the BindingList of my business objects. Business object implement INotifyPropertyChanged interface. Each time the business object changes DataGridView fires several SelectionChanged events. When I add/remove objects to the DataSource SelectionChanged events are fired too...
The combobox displays a blank field by default even though the combobox is populated with a number of values ColumnSpeed.DataSource = speedList; ColumnSpeed.ValueType = typeof(string); I also tried the following, but it still displays the blank text. foreach (DataGridViewRow row in myDataGridView.Rows) { DataGridViewComboBoxCell ...
I want an OpenFileDialog to come up when a user clicks on a cell, then display the result in the cell. It all works, except that the DataGridView displays an extra row, for adding values to the list it's bound to. The row shows up if dataGridView.AllowUserToAddNewRows == true, which is what I want. What I don't want is for the applica...
I am using a DataGridView control in my app at the moment and I am hitting a weird memory issue with it. I am not using DataBinding at all, just manual population. The data that I am putting in there is not a lot at all. We're talking about 20 rows by 20 columns of data at the most usually. The work flow for that control is that I have...
I have a DataGridView in my windows application, what using DataBinding (Strong-type Dataset). My problem is the following: I have two DataGridViewComboBoxCell. First "Project" Second "Activity". When i change the value of the "Project" cell, then i want to change the data source of the "Activity" DataGridViewComboBoxCell. But when it h...
Does it makes sense that when columns of a datagridview are cleared, all rows are removed? ...
i have a databound datagrid in vb.net 2008. This is a program where i use the double click event multipal times.. but for some reason on a new form it's not working anymore. In code behind i selected the datagrid and double click event. when i double click on teh grid in debug mode, it never fires off the event(i put a breakpoint in)....
how to add column dynamically in datagridview using c# ...
I like to take a column header text and span it across to columns. How would you do this? I can't find a "Headercell.Span." Also is it possible to have two column headers? Like this | FULL NAME | DESC. | | first | last | state | age | DATA ...
Hi, I can't see DataGridView Properties in my C# program in Visual studio 2005. I can see the DataGridView on the Form - but can't see its Properties. Why ? Thanks in advance ...