I am able to use the bindinglist() as a datasource for my winforms gridview. I set a timer to randomly update an item in my binding list and the changes are correctly reflecting on the grid. I am using the Onpropertychanged and iNotifyPropertyChanged events in my data class, so my grid is updating with the correct values when the underlying data changes.
I would like to make the cell momentarily change color when the data is changed in that cell.
Is there a grid event that fires when the underlying data changes when using a bindinglist and the onpropertychanged notifiers?
I cannot seem to locate the correct grid event that fires when the data changes.
3 Answers, 1 is accepted
You can use the RowsChanged event. The following example shows how you can set the BackColor with this event:
private void RadGridView1_RowsChanged(object sender, Telerik.WinControls.UI.GridViewCollectionChangedEventArgs e){ if (e.Action == Telerik.WinControls.Data.NotifyCollectionChangedAction.ItemChanged) { var row = e.NewItems[0] as GridViewRowInfo; var cell = row.Cells[e.PropertyName]; cell.Style.CustomizeFill = true; cell.Style.BackColor = Color.Red; }}I hope this helps. Should you have any other questions do not hesitate to ask.
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Thanks!
I was trying to go one step further and get the old value vs the new value to determine if the cell gets a different color. Based on your code, I added to the code below, but was not able to get the old value. Am I using this correctly?
if (e.Action == Telerik.WinControls.Data.NotifyCollectionChangedAction.ItemChanged)
{
var row = e.NewItems[0] as GridViewRowInfo;
var cell = row.Cells[e.PropertyName];
cell.Style.CustomizeFill = true;
var oRow = e.OldItems[0] as GridViewRowInfo;
var oCell = oRow.Cells[e.PropertyName];
System.Diagnostics.Debug.Print(oCell.Value + " -> " + cell.Value);
cell.Style.BackColor = Color.Red;
System.Threading.Thread.Sleep(250);
cell.Style.BackColor = Color.White;
}
Your code is ok, it seems that there is an issue with this functionality. I have logged this issue on our Feedback Portal. You can track its progress, subscribe to status changes and add your comment to it here. I have also updated your Telerik Points.
Unfortunately, due to the nature of the issue, I cannot provide you with a workaround.
I hope this helps. Should you have any other questions do not hesitate to ask.
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