DataGrid - How to perform accent-insensitive search

Hello Alejandro,

Updated:

The DataSource component can now sort and filter data by a locale with special characters (for example, symbols with diacritics). Specify locale and collator options in the langParams object to implement this functionality: What's New Data Layer.

You can download the devextreme@23.1 package for testing:

Previous versions:

You can use the calculateFilterExpression option for this purpose. For example:

JavaScript
.....  
columns: [  
     .....  
    {  
        dataField: 'PrisonDesc',  
        caption: 'Facility Name',  
        width: 700,  
        allowEditing: false,  
        calculateFilterExpression: function(filterValue, selectedFilterOperation, target){  
            var getter = function(data) {  
              return data['PrisonDesc'].normalize('NFD').replace(/[\u0300-\u036f]/g,"");  
            };  

            filterValue = filterValue.normalize('NFD').replace(/[\u0300-\u036f]/g,"");  

            return [getter, selectedFilterOperation || "contains", filterValue];  
        }  
    },  
    .....  
],  
.....  

See also:
String.prototype.normalize()
Combining Diacritical MarksRemove accents/diacritics in a string in JavaScript