JavaScript/jQuery Lookup - Customize Item Appearance
For a minor customization of Lookup items, you can define specific fields in item data objects. For example, the following code generates three items: the first is not customized, the second is disabled and the third is hidden.
- $(function() {
- $("#lookupContainer").dxLookup({
- valueExpr: 'text',
- displayExpr: 'text',
- dataSource: [
- { text: "HD Video Player" },
- { text: "SuperHD Video Player", disabled: true },
- { text: "SuperPlasma 50", visible: false }
- ]
- });
- });
If you need a more flexible solution, define an itemTemplate.
- const lookupData = [{
- id: 1,
- name: "HD Video Player",
- imgSrc: "images/products/1-small.png"
- }, {
- id: 2,
- name: "UltraHD Player",
- imgSrc: "images/products/2-small.png"
- },
- // ...
- ];
- $(function() {
- $("#lookupContainer").dxLookup({
- dataSource: lookupData,
- valueExpr: 'id',
- displayExpr: 'name',
- itemTemplate: function (itemData, itemIndex, itemElement) {
- return $("<div />").append(
- $("<img />").attr("src", itemData.imgSrc),
- $("<p />").text(itemData.name)
- .css("display", "inline-block")
- .css("font-style", (itemIndex % 2 == 0) ? "italic" : "normal")
- );
- }
- });
- });
You can also customize an individual Lookup item. For this purpose, declare a template for this item as a script and pass its id
to the template field.
- <script id="individualTemplate" type="text/html">
- <!-- ... -->
- </script>
- const lookupData = [
- { text: "SuperHD Player"},
- { text: "HD Video Player", template: $("#individualTemplate") },
- // ...
- ];
Using similar techniques, you can customize the input field of the Lookup. The template for it should be assigned to the fieldTemplate property.
- $(function() {
- $("#lookupContainer").dxLookup({
- dataSource: lookupData,
- valueExpr: 'id',
- displayExpr: 'name',
- fieldTemplate: function(itemData, itemElement) {
- return $("<div />").append(
- $("<img />").attr("src", itemData.imgSrc)
- );
- }
- });
- });
See Also
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