By default, the foreign key column uses the drop-down component for editing. You can render other than the drop-down component by using the column.edit property. The following example demonstrates the way of using edit template in the foreign column.
In the following code example, the Employee Name is a foreign key column. When editing, the AutoComplete component is rendered instead of drop-down list.
var autoCompleteObj;
ej.grids.Grid.Inject(ej.grids.ForeignKey, ej.grids.Edit);
var grid = new ej.grids.Grid({
dataSource: data.slice(0,10),
editSettings: { allowEditing: true },
columns: [
{ field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 100 },
{
field: 'EmployeeID', headerText: 'OrderDate', width: 150, foreignKeyValue: 'BirthDate', dataSource: employeeData, format: 'yMd',
edit: {
create: function() { // to create input element
return ej.base.createElement('input');
},
read: function() { // return edited value to update data source
var value = new ej.data.DataManager(employeeData).executeLocal(new ej.data.Query().where(ej.grids.getDatePredicate({field: 'BirthDate', operator: 'equal',value: autoCompleteObj.value})));
return value.length && value[0]['EmployeeID']; // to convert foreign key value to local value.
},
destroy: function() { // to destroy the custom component.
autoCompleteObj.destroy();
},
write: (args) => { // to show the value for date picker
autoCompleteObj = new ej.dropdowns.AutoComplete({
dataSource: employeeData,
fields: { value: args.column.foreignKeyValue },
value: args.foreignKeyData[0][args.column.foreignKeyValue]
});
autoCompleteObj.appendTo(args.element);
}
}
},
{ field: 'Freight', headerText: 'Freight', width: 100, textAlign: 'Right'},
{ field: 'ShipName', headerText: 'Ship Name', width: 180 }
],
height: 315
});
grid.appendTo('#Grid');<!DOCTYPE html><html lang="en"><head>
<title>EJ2 Grid</title>
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