read only properties

[User (Old forums)]

#23462 |

Can a column contain public properties that are read only? ie that only have a getter, and not a setter?

My initial try resulted in an invalidoperation exception; “A TwoWay or OneWayToSource binding cannot work on the read-only property…”

I’d rather these properties remain read only, but still be displayed in the grid. I thought I’d set the cell to ReadOnly, but that doesnt help.

Is there another way around this?

thanks

Imported from legacy forums. Posted by Jack (had 3597 views)

[Xceed Support]

#23463

you can set the Column.ReadOnly property to “True”. This should prevent edition (and binding created should reflect htat).

Imported from legacy forums. Posted by Marcus [Xceed] (had 294 views)

[User (Old forums)]

#23464

Hi,

I am setting the col to ReadOnly, but I continue to get that exception.

Here’s in most of my code;

private void BindGrid()
{
// clear grid first
ResetGrid(false, true);

if (events == null) return;

DataGridCollectionView temp = new DataGridCollectionView(events);

temp.ItemProperties.Clear();

temp.ItemProperties.Add(new DataGridItemProperty(“EventID”, “EventID”, typeof(Guid)));
temp.ItemProperties.Add(new DataGridItemProperty(“EventType”, “EventType”, typeof(string)));
temp.ItemProperties.Add(new DataGridItemProperty(“SmartIDFull”, “SmartIDFull”, typeof(string)));
temp.ItemProperties.Add(new DataGridItemProperty(“Status”, “Status”, typeof(string)));
temp.ItemProperties.Add(new DataGridItemProperty(“EventDate”, “EventDate”, typeof(string)));
temp.ItemProperties.Add(new DataGridItemProperty(“TotalNett”, “TotalNett”, typeof(decimal)));
temp.ItemProperties.Add(new DataGridItemProperty(“TotalGST”, “TotalGST”, typeof(decimal)));
temp.ItemProperties.Add(new DataGridItemProperty(“Total”, “Total”, typeof(decimal)));

grid.ItemsSource = temp;

// read only cols
grid.Columns[“EventID”].ReadOnly = true;
grid.Columns[“EventType”].ReadOnly = true;
grid.Columns[“SmartIDFull”].ReadOnly = true;
grid.Columns[“Status”].ReadOnly = true;
grid.Columns[“EventDate”].ReadOnly = true;
grid.Columns[“TotalNett”].ReadOnly = true;
grid.Columns[“TotalGST”].ReadOnly = true;
grid.Columns[“Total”].ReadOnly = true;

}

re: DataGridCollectionView temp = new DataGridCollectionView(events);

events is an IBindingList of objects, and these objects *only* have read-only properties.

If anyone here has successfully bound to read-only properties, or knows of a sample, could they please let me know?

Imported from legacy forums. Posted by Jack (had 683 views)

[User (Old forums)]

#23465

I’ve noticed that this exception only occurs when I try to add the ItemProperties manually, like this;

DataGridCollectionView temp = new DataGridCollectionView(events);
temp.ItemProperties.Clear();
temp.ItemProperties.Add(new DataGridItemProperty(“EventID”, “EventID”, typeof(Guid)));
grid.ItemsSource = temp;

If I do it like this;

DataGridCollectionView temp = new DataGridCollectionView(events);
grid.ItemsSource = temp;

everything works fine

Imported from legacy forums. Posted by Jack (had 619 views)

[Xceed Support]

#23466

Thank you, we’ll take a look at this, considering this additional information.

Imported from legacy forums. Posted by Marcus [Xceed] (had 4461 views)

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