How to implement search functionality on a jqGrid?

 You can implement search on a jqGrid by using the built-in search functionality provided by jqGrid. This allows you to search for specific data within the grid based on certain criteria.

Here's an example of how to implement search on a jqGrid:

javascript
$("#grid").jqGrid({
    // other jqGrid options
    search: true,
    postData: {
        filters: ''
    },
    onSearch: function() {
        var postData = $(this).jqGrid('getGridParam', 'postData');
        postData.filters = JSON.stringify($(this).jqGrid('getGridParam', 'postData'));
    }
});

In this example, we're setting the search option to true to enable search functionality. We're also setting the postData option to an object that includes a filters property, which will be used to store the search criteria.

The onSearch event is triggered when the search button is clicked, and we're using this event to update the filters property with the search criteria. We're doing this by using the JSON.stringify method to convert the search criteria to a JSON string, which we then assign to the filters property of the postData object.

You can customize the search criteria by using the search options provided by jqGrid. These options allow you to specify the search field, the search operator, and the search value. Here's an example:

javascript
$("#grid").jqGrid('filterToolbar', {
    // search options
    stringResult: true,
    searchOnEnter: false,
    defaultSearch: 'cn'
});

In this example, we're using the filterToolbar method to display the search toolbar. We're also setting the stringResult option to true to return the search criteria as a string, the searchOnEnter option to false to trigger search on button click, and the defaultSearch option to 'cn' to search for a substring within a cell.

Once the search toolbar is displayed, the user can enter search criteria and click the search button to filter the grid data based on those criteria. The search criteria will be sent to the server as part of the postData object, which you can use to filter the data on the server-side as well.