DateTimeCellModel Calenadar appears in wrong place

[Valerij]

There is a strange behaviour in DateTimeCellModel.

Example attached.

Step 0: Run attached solution
Step 1: Single click on one of grid cells
Step 2: Now click on the textbox in right upper corner
Step 3: Click on "dropdown" button (with small triangle) in previously clicked cell

Calendar appears in right bottom corner of the screen. How can I fix this problem?

DateTimePickerCellBug.zip

[Administrator]

You can avoid the problem by hiding the DatTimePicker when the grid loses focus. At the bottom of the renderer's contructor, add this code to subscribe to the event.

  grid.LostFocus += new EventHandler(grid_LostFocus);

Then use this handler.

        void grid_LostFocus(object sender, EventArgs e)
        {
            if (dateTimePicker.Visible)
            {
                this.dateTimePicker.Hide();
            }
        }

[Valerij]

You mean something like this for GDBG:

void gridDataBoundGrid1_LostFocus(object sender, EventArgs e)
{
if (gridDataBoundGrid1.CurrentCell.Renderer.Control.Visible)
gridDataBoundGrid1.CurrentCell.Renderer.Control.Hide();
}
?

Is there a way to avoid this problem at DateTimeCellModel component level? I need to implement datetimepicker cell in quite big application where a lot grids are used. It would be much easer to make changes in one place then add event handler to each grid.

[Administrator]

I was suggesting doing this in the renderer code.

      public DateTimeCellRenderer(GridControlBase grid, GridCellModelBase cellModel)
            : base(grid, cellModel)
        {
            dateTimePicker = new MyDateTimePicker();
            
            dateTimePicker.Format = System.Windows.Forms.DateTimePickerFormat.Short;
            dateTimePicker.NullString = "";
            dateTimePicker.ShowUpDown = false;
            dateTimePicker.ShowCheckBox = false;
            dateTimePicker.ShowDropButton = true;
            dateTimePicker.Border3DStyle = Border3DStyle.Flat;

            grid.Controls.Add(dateTimePicker);

            //show & hide to make sure it is initilized properly for teh first use...
            dateTimePicker.Show();
            dateTimePicker.Hide();

            this.SetControl(dateTimePicker);

            grid.LostFocus += new EventHandler(grid_LostFocus);//added.......
              }
        
//added.......
        void grid_LostFocus(object sender, EventArgs e)
        {
            if (dateTimePicker.Visible)
            {
                this.dateTimePicker.Hide();
            }
        }