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How to print the grid when barcode as one of the column in JS Grid?
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This knowledge base explains how to print the grid when Syncfusion canvas control such as barcode as one of the grid column using Print feature of JavaScript Grid.
Solution:
Using beforePrint event, we can print the grid with column contains syncfusion canvas control (ejBarcode) as one of the column by converting the canvas element into image. Initially we can display the ejBarcode in Grid by using column template feature of grid.
Render the Grid control.
HTML
<div id="Grid"></div>
JS
<script type="text/x-jsrender" id="columnTemplate">
<div id="{{:EmployeeID}}barcode" class="barcode"></div>
</script>
<script type="text/javascript">
$(function () {
$("#Grid").ejGrid({
// the datasource "window.employeeView" is referred from jsondata.min.js
dataSource: window.employeeView,
allowPaging: true,
pageSettings: {pageSize: 4},
toolbarSettings: {showToolbar: true, toolbarItems: [ej.Grid.ToolBarItems.PrintGrid]},
columns: [
{headerText: "Barcode", templateID: "#columnTemplate", textAlign: "center", width: 170},
{field: "EmployeeID", headerText: "Employee ID", textAlign: ej.TextAlign.Right, width: 90},
{field: "FirstName", headerText: "First Name", width: 90},
{field: "LastName", headerText: "Last Name", width: 90},
{field: "BirthDate", headerText: "Birth Date", width: 90, format: "{0:MM/dd/yyyy}"},
{field: "Country", headerText: "Country", width: 80}
],
dataBound: "databound",
templateRefresh: "refresh",
beforePrint: "beforeprint"
});
});
</script>
MVC
@(Html.EJ().Grid<object>("Grid")
.Datasource((IEnumerable<object>)ViewBag.DataSource)
.AllowPaging()
.PageSettings(p => { p.PageSize(4); })
.ToolbarSettings(toolbar =>{
toolbar.ShowToolbar().ToolbarItems(items =>
{
items.AddTool(ToolBarItems.PrintGrid);
});
})
.Columns(col =>{
col.HeaderText("Barcode").Template("#columnTemplate")
.TextAlign(TextAlign.Center).Width(170).Add();
col.Field("EmployeeID").HeaderText("Employee ID").TextAlign(TextAlign.Right).Width(90).Add();
col.Field("FirstName").HeaderText("First Name").Width(90).Add();
col.Field("LastName").HeaderText("Last Name").Width(90).Add();
col.Field("BirthDate").HeaderText("Birth Date”).Width(90).Format("{0:MM/dd/yyyy}").Add();
col.Field("Country").HeaderText("Country”).Width(80).Add();
})
.ClientSideEvents(eve =>
{
eve.DataBound("databound");
eve.TemplateRefresh("refresh");
eve.BeforePrint("beforeprint");
})
)
[Serverside code]
namespace EJGrid.Controllers
{
public class HomeController: Controller
{
public ActionResult Index()
{
var DataSource = new NorthwindDataContext().EmployeeViews.ToList();
ViewBag.DataSource = DataSource;
return View();
}
}
}
ASP.NET
[aspx]
<ej:Grid ID="Grid" runat="server" AllowPaging="True">
<ToolbarSettings ShowToolbar="True" ToolbarItems="printGrid">
</ToolbarSettings>
<PageSettings PageSize="4" />
<ClientSideEvents DataBound="databound" TemplateRefresh="refresh" BeforePrint="beforeprint">
</ClientSideEvents >
<Columns>
<ej:Column HeaderText="Barcode" Template="#columnTemplate" TextAlign="Center" Width="170" />
<ej:Column Field="EmployeeID" HeaderText="Employee ID" TextAlign="Right" Width="90"/>
<ej:Column Field="FirstName" HeaderText="First Name" Width="90"/>
<ej:Column Field="LastName" HeaderText="Last Name" Width="90"/>
<ej:Column Field="BirthDate" HeaderText="Birth Date" Format="{0:MM/dd/yyyy}" Width="90"/>
<ej:Column Field="Country" HeaderText="Country" Width="80"/>
</Columns>
</ej:Grid>
[Serverside code]
public partial class _Default: Page
{
protected void Page_Load(object sender, EventArgs e)
{
this.Grid.DataSource = new NorthwindDataContext().EmployeeViews.ToList();
this.Grid.DataBind();
}
}
ASP.NET CORE
<ej-grid id="Grid" allow-paging="true" datasource="ViewBag.DataSource" databound="databound" template-refresh="refresh" before-print="beforeprint">
<e-toolbar-settings show-toolbar="true" toolbar-items='@new List<string> {"printGrid"}' />
<e-page-settings page-size="4"></e-page-settings>
<e-columns>
<e-column header-text="Barcode" template="#columnTemplate" width="170"></e-column>
<e-column field="EmployeeID" header-text="Employee ID" text-align="Right" width="80"></e-column>
<e-column field="FirstName" header-text="First Name" width="90"></e-column>
<e-column field="LastName" header-text="Last Name" width="90"></e-column>
<e-column field="BirthDate" header-text="Birth Date" format="{0:MM/dd/yyyy}" width="90"></e-column>
<e-column field="County" header-text="Country" width="80"></e-column>
</e-columns>
</ej-grid>
[Serverside code]
public partial class GridController: Controller
{
public ActionResult GridFeatures()
{
var DataSource = new NorthwindDataContext().EmployeeViews.ToList();
ViewBag.DataSource = DataSource;
return View();
}
}
Angular
Define the template in the Index page.
<script type="text/x-jsrender" id="columnTemplate">
<div id="{{:EmployeeID}}barcode" class="barcode"></div>
</script>
HTML File
<ej-grid id="Grid" #grid [allowPaging]=true [dataSource]="gridData" (beforePrint)="onPrint($event)" (dataBound)="dataBound($event)" (templateRefresh)="refresh($event)" [pageSettings]="pageSettings"
[toolbarSettings.showToolbar]="true" [toolbarSettings.toolbarItems]="tools" >
<e-columns>
<e-column headerText="Barcode" template="#columnTemplate" textAlign="center" width="170"></e-column>
<e-column field="EmployeeID" headerText="Employee ID" width="90"></e-column>
<e-column field="FirstName" headerText="First Name" width="90"></e-column>
<e-column field="LastName" headerText="Last Name" width="90"></e-column>
<e-column field="BirthDate" headerText="Birth Date" format="{0:MM/dd/yyyy}" width="90"></e-column>
<e-column field="Country" headerText="Country" width="80"></e-column>
</e-columns>
</ej-grid>
Ts File
export class AppComponent {
public gridData;
public tools;
public pageSettings;
@ViewChild('grid') Grid: EJComponents<any, any>;
constructor() {
//The datasource "window.employeeView" is referred from 'http://js.syncfusion.com/demos/web/scripts/jsondata.min.js'
this.gridData = window.employeeView;
this.pageSettings = { pageSize: 4 };
this.tools = ["printGrid"];
}
// convert the element to corresponding controls by using templateRefresh and databound event of grid.
refresh(e:any){
var grid = $("#Grid").ejGrid("instance");
if(!grid.initialRender){
var text = e.data.EmployeeID;
var val = text.toString();
$(e.cell).find(".barcode").ejBarcode({ text: val, symbologyType: "qrbarcode" });
}
}
dataBound(e){
var data = e.model.currentViewData;
for (var j = 0; j < data.length; j++) {
var text = data[j].EmployeeID;
$(".barcode").eq(j).ejBarcode({ text: text.toString(), symbologyType: "qrbarcode" });
}
}
// convert this canvas element to image and then print the ejBarcode control.
onPrint(e) {
if (e.requestType == "print") {
var img = new Image();
var len = e.element.find(".barcode").length;
e.model.allowPaging = false;
var grid = $("#" + this.Grid.widget._id).ejGrid("instance");
grid.refreshContent();
grid.getPager().css('display', 'none');
for (var i = 0; i < len; i++) {
img = new Image();
img.src = $(".barcode").children("canvas")[i].toDataURL();
e.element.find(".barcode").eq(i).parent("td").append(img);
}
grid.model.allowPaging = true;
grid.refreshContent();
grid.getPager().css('display', 'block');
}
}
}
Using template property of grid columns, we can add ejBarcode control as one of the grid column. Create an element using jsRender and convert the element to corresponding control by using templateRefresh and dataBound event of the grid.
<script type="text/javascript">
function refresh(args) {
if (!this.initialRender) {
var text = args.data.EmployeeID;
$(args.cell).find(".barcode").ejBarcode({ text: text.toString(), symbologyType: "qrbarcode" });
}
}
function databound(args) {
var data = this.model.currentViewData;
for (var j = 0; j < data.length; j++) {
var text = data[j].EmployeeID;
this.element.find(".barcode").eq(j).ejBarcode({ text: text.toString(), symbologyType: "qrbarcode" });
}
}
</script>
In beforePrint event, convert the canvas element to image and then print the ejBarcode control.
<script type="text/javascript">
function beforeprint (args) {
if (args.requestType == "print") {
var img = new Image();
var len = args.element.find(".barcode").length;
this.model.allowPaging = false;
var grid = $("#" + this._id).ejGrid("instance");
grid.refreshContent();
grid.getPager().css('display', 'none');
for (var i = 0; i < len; i++) {
img = new Image();
img.src = $(".barcode").children("canvas")[i].toDataURL();
args.element.find(".barcode").eq(i).parent("td").append(img);
}
grid.model.allowPaging = true;
grid.refreshContent();
grid.getPager().css('display', 'block');
}
}
</script>
Figure 1 Grid with barcode control
Figure 2 To print barcode control
Conclusion
I hope you enjoyed learning about how to print the grid when barcode as one of the column in JS Grid.
You can refer to our JavaScript Grid feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our JavaScript Grid example to understand how to create and manipulate data.
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