Error filtering Kendo UI grid

Question

I am trying to filter Kendo UI grid programatically but getting this error:

TypeError: "".toLowerCase is not a function

Below is the code which I am using to filter grid:

 function filterSavedTransactions(checkboxstate,grid,field1,field2,amount) { if (!parseFloat(amount)) amount = 0; if (checkboxstate) { var ds = $('#' + grid.attr('id')).data("kendoGrid").dataSource; ds.filter([{ "logic":"and", filters: [ { field: field2, operator: "gt", value: amount }, { field: field1, operator: "neq", value: checkboxstate }] }]); } else { $('#' + grid.attr('id')).data("kendoGrid").dataSource.filter({}); } }

I am referring to below link and doing in the same way but not working on my side.

http://jsfiddle.net/valchev/MG89G/

Please suggest.

Answer 1

Somehow, I made changes in code and it fixed the issue. What I did is that I replaced line of code : value: amount with value: parseFloat(amount) and it worked fine.

Answer 2

I had this issue too. Adding the numeric columns to the dataSource schema didn't fix it.

Adding type: 'number' to the column definition didn't fix it either.

What finally worked for me was to parseInt() the filter text and change my operator from 'contains' to 'eq.'

Answer 3

Kendo seems to like fields to be cast. I had to add:

template: function (dataItem) {
    return kendo.toString(dataItem.FriendlyStatus);
}

Answer 4

This worked from me too Thanks Ebbs

columns: [
        {
            field: "MyFieldNameWhichisInteger", title: "My Field Name", width: "200px",
             filterable: {
                extra: false,
                operators: {
                    string: {
                        startswith: "Starts with",
                        eq: "Is equal to",
                        neq: "Is not equal to"
                    }
                },
                cell: {
                    operator: "eq",
                    suggestionOperator: "eq"
                }
            },
            template: function (dataItem) {
                return kendo.toString(dataItem.MyFieldNameWhichisInteger);
            }

        }