如何在DataGrid控件wpf中编辑单元格类型？

Question

In my application I have a Server class which has public properties Name and Connected .

Connected is a bool which is updated by the each instance of the Server class.

Right now I have DataGrid which is autogenerating columns from a list of servers called servers.

Is there a way to change the dataGrid so that it shows "Connected" when Connected is true and "Disconnected" when Connected is false?

Answer 1

if AutoGenerateColumns is used, it is possible to handle AutoGeneratingColumn event in code behind and modify newly created Connected DataGridCheckBoxColumn. What I'm going to do, is to create a Trigger which will change status text depending of ChechBox checked state:

private void DataGridAutoGeneratingColumnHandler(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
    if (e.PropertyName == "Connected")
    {
        var c = e.Column as DataGridCheckBoxColumn;
        if (c == null)
            return;
        c.IsReadOnly = true;
        c.ElementStyle =
            new Style
            {
                TargetType = typeof (CheckBox),
                Setters =
                {
                    new Setter { Property = ContentProperty, Value = "Disconnected" },
                    // prevent checking CheckBoxes 
                    new Setter { Property = IsHitTestVisibleProperty, Value = false },
                },
                Triggers =
                {
                    new Trigger
                    {                                
                        Property = CheckBox.IsCheckedProperty, 
                        Value = true,
                        Setters =
                        {
                            new Setter { Property = ContentProperty, Value = "Connected" }
                        }
                    }
                }
            };
    }
}

---

another idea: make a special property in a viewModel for connection status description.

private void DataGrid_AutoGeneratingColumnHandler(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
    if (e.PropertyName == "Connected")
        e.Cancel = true;
}

and then disable column generation for Connected property

 private void DataGrid_AutoGeneratingColumnHandler(object sender, DataGridAutoGeneratingColumnEventArgs e) { if (e.PropertyName == "Connected") e.Cancel = true; }