search on multiple words

[Koen]

Dear,

I have seen this thread: https://www.syncfusion.com/forums/147142/is-it-possible-to-do-real-time-search-with-multiple-keywords

How would I do the same (query 2 in particular) in the following grid? It seems that the used function ej.predicate() is not available?

<ejs-grid id="Grid" dataSource="ViewBag.datasource" toolbar="@(new List<string>() {"Search" })" allowPaging="true"> <e-grid-pagesettings pageCount="5"></e-grid-pagesettings> <e-grid-columns> <e-grid-column field="CategoryName" headerText="Category Name" textAlign="Right" width="160"></e-grid-column> <e-grid-column field="ProductName" headerText="Product Name" width="170"></e-grid-column> <e-grid-column field="QuantityPerUnit" headerText="Quantity Per Unit" textAlign="Right" width="170"></e-grid-column> <e-grid-column field="UnitsInStock" headerText="Units in Stock" textAlign="Right" width="170"></e-grid-column> <e-grid-column field="Discontinued" headerText="Discontinued" width="150" displayAsCheckBox="true" textAlign="Center" type="boolean"></e-grid-column> </e-grid-columns> </ejs-grid>

[Thavasianand Sankaranarayanan]

Hi Koen, 

 

Greetings from Syncfusion support. 

 

We can search the text value based on typing the values in search textbox instead of click on search button using created event and we have bind actionBegin event and prevent the default search action and customize the filter query based on the multiple keywords(search). Please refer the below code example and sample for more information.  

 

[index.cshtml]  

<ejs-grid id="Grid" dataSource="ViewBag.datasource" allowPaging="true" toolbar="@(new List<string>() {"Search" })"created="created" actionBegin="actionBegin" actionComplete="actionComplete">      

    <e-grid-columns>          

        .    .     .    .          

    </e-grid-columns>  

</ejs-grid>  

<script>  

    var debounceTimer = null;  

    var gquery, val;  

    function created(e) {          

        document.getElementById("Grid_searchbar").addEventListener('keyup', (event) => {  

            clearTimeout(debounceTimer); // you can customize as per your requirement(Searh action trigger while KEYPRESS)  

            debounceTimer = setTimeout(() => { searchFun(event); }, 500);  

        })   

    }  

  

    function actionBegin(args) {          

        if (args.requestType == "searching") {  

            var grid = document.getElementsByClassName("e-grid")[0].ej2_instances[0];  

            const keys = args.searchString.split(','); //Split your search text and get the values  

            var flag = true;  

            var predicate;  

            if (keys.length > 1) {  

                if (this.searchSettings.key !== '') {  

                    val = args.searchString;  

                    // preparing filter query  

                    keys.forEach((key) => {  

                        this.getColumns().forEach(col => {  

                            if (flag) {  

                                predicate = new ej.data.Predicate(col.field, 'contains', key);  

                                flag = false;  

                            } else {  

                                var pre = new ej.data.Predicate(col.field, "contains", key);  

                                predicate = predicate.or(pre);                                                            }  

                        });  

                    });  

                    gquery = this.query;  

                    this.query = new ej.data.Query().where(predicate);                      

                    this.searchSettings.key = '';  

                    this.refresh();  

                }  

            }  

        }  

    }  

  

    function actionComplete(e) {  

        if (e.requestType === 'refresh') {  

            this.query = gquery;  

            document.getElementById(this.element.id + '_searchbar').value = val;  

        }  

    }  

    function searchFun(event) {  

        var grid = document.getElementsByClassName("e-grid")[0].ej2_instances[0];  

        var value = event.target.value;  

        grid.search(value);  

        clearTimeout(debounceTimer);  

    }  

</script>  

 

 

Sample: https://www.syncfusion.com/downloads/support/forum/147142/ze/EJ2Grid-03092019-1342461571.zip 

 

Note: We need to the predicate as ej.data.Perdicate() to use in EJ 2 Grid component.  

 

Refer the help documentation. 

 

Link: https://ej2.syncfusion.com/javascript/documentation/api/grid/#actionbegin 

Link: https://ej2.syncfusion.com/javascript/documentation/api/grid/#actioncomplete 

Link: https://ej2.syncfusion.com/javascript/documentation/api/grid/#created  

 

Regards, 

Thavasianand S.