I would like to mention that your ViewModels should NEVER derive from DependencyObect. NEVER!!!

Hi Krasimir,

I have been trying the model which you have mentioned here but without a luck!

Here's what I did:

Adding Visiblility property for an unbound field -

<igDP:UnboundField Name="gridCustomerId"  
                   Label="ID"  
                   Binding="{Binding customerid,  
                                     Mode=TwoWay,  
                                     UpdateSourceTrigger=PropertyChanged}"  
                   Visibility="{Binding ShowCustomerIDColumn,  
                                        Mode=TwoWay,  
                                        UpdateSourceTrigger=PropertyChanged}">

In my View Model, adding a proerty of Visibility type:
//ToShow CustomerID Column 
private Visibility showCustomerIDColumn;  
public Visibility ShowCustomerIDColumn  
{ 
    get 
    { 
        return showCustomerIDColumn;  
    } 
 
    set 
    { 
        showCustomerIDColumn=value;  
        InvokePropertyChanged("ShowCustomerIDColumn");  
    }     
} 


Then in the command handler using the following code:
if(ShowCustomerIDColumn == Visibility.Collapsed)  
    ShowCustomerIDColumn = Visibility.Visible;  
else 
    ShowCustomerIDColumn = Visibility.Collapsed;  
 
InvokePropertyChanged("ShowCustomerIDColumn"); 

In the constructor of the ViewModel, I'm setting the column to collapsed:

ShowCustomerIDColumn = Visibility.Collapsed

Please help!

Hi Krasimir,

Thanks for your reply, The resolution you have provided is good. I have one question here, let's assume that I have 50 columns and I need to hide 10 columns then I need to create 10 visibility properties, instead of that can we do like keep column names in list and based on the list can we hide only columns defined in list using any converters like that

Is it  possible? if so can you provide me any sample code

Thanks in advance.