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Use Wizard like Dialog Editing in JavaScript Tree Grid control

20 Apr 2021 / 3 minutes to read

Wizard helps you create intuitive step-by-step forms to fill. You can achieve the wizard like editing by using the dialog template feature. It support your own editing template by defining editSettings.mode as Dialog and editSetting.template as SCRIPT element ID or HTML string which holds the template.

The following example demonstrate the wizard like editing in the Tree Grid with the obtrusive Validation.

Source
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index.ts
index.css
index.html
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import { TreeGrid, Edit, Toolbar } from "@syncfusion/ej2-treegrid";
import { projectData } from './datasource.ts';
import { DropDownList } from "@syncfusion/ej2-dropdowns";
import { DataUtil } from "@syncfusion/ej2-data";
import { DialogEditEventArgs } from "@syncfusion/ej2-grids";
import { NumericTextBox } from "@syncfusion/ej2-inputs";

TreeGrid.Inject(Edit, Toolbar);
let PriorityData: {}[] = DataUtil.distinct(projectData, "Priority", true);

let treegrid: TreeGrid = new TreeGrid({
  dataSource: projectData,
  idMapping: "TaskID",
  parentIdMapping: "parentID",
  treeColumnIndex: 1,
  height: 273,
  toolbar: ["Add", "Edit", "Delete", "Update", "Cancel"],
  editSettings: {
    allowEditing: true,
    allowAdding: true,
    allowDeleting: true,
    mode: "Dialog",
    template: "#dialogtemplate"
  },
  actionComplete: actionComplete,
  columns: [
    { field: "TaskID", headerText: "Task ID", isPrimaryKey: true, textAlign: "Right", width: 70 },
    { field: "TaskName", headerText: "Task Name", width: 100 },
    { field: "StartDate", headerText: "Start Date", textAlign: "Right", width: 90, editType: "datepickeredit",
      format: { skeleton: "yMd", type: "date" }, edit: { params: { format: "y/M/d" } } },
    { field: "EndDate", headerText: "End Date", textAlign: "Right", width: 90, editType: "datepickeredit",
      format: { skeleton: "yMd", type: "date" }, edit: { params: { format: "y/M/d" } } },
    { field: "Duration", headerText: "Duration", textAlign: "Right", width: 90 },
    { field: "Priority", headerText: "Priority", width: 90 }
  ]
});
treegrid.appendTo("#TreeGrid");
function actionComplete(args) {
  if (args.requestType === "beginEdit" || args.requestType === "add") {
    new DropDownList(
      {
        value: args.rowData.Priority,
        popupHeight: "300px",
        floatLabelType: "Always",
        dataSource: PriorityData,
        fields: { text: "Priority", value: "Priority" },
        placeholder: "Priority"
      },
      args.form.elements.namedItem("Priority") as HTMLInputElement
    );
    new NumericTextBox(
      { value: args.rowData.Duration, placeholder: "Duration" },
      args.form.elements.namedItem("Duration")
    );
    // Set initail Focus
    if (args.requestType === "beginEdit") {
      (args.form.elements.namedItem("TaskName") as HTMLInputElement).focus();
    }
    initializeWizard();
  }
}

function initializeWizard() {
  let currentTab = 0;

  document.getElementById("nextBtn").onclick = function() {
    if (validate()) {
      if (this.innerHTML !== "SUBMIT") {
        currentTab++;
        nextpre(currentTab);
      } else {
        treegrid.endEdit();
      }
    }
  };
  function validate(tab) {
    let valid: boolean = true;
    [].slice
      .call(
        document.getElementById("tab" + currentTab).querySelectorAll("[name]")
      )
      .forEach(element => {
        element.form.ej2_instances[0].validate(element.name);
        if (element.getAttribute("aria-invalid") === "true") {
          valid = false;
        }
      });
    if (!valid) {
      return false;
    }
    return true;
  }
  document.getElementById("prevBtn").onclick = function() {
    if (validate()) {
      currentTab--;
      nextpre(currentTab);
    }
  };
}

function nextpre(current) {
  let tabs: HTMLElement[] = [].slice.call(
    document.getElementsByClassName("tab")
  );
  tabs.forEach(element => (element.style.display = "none"));
  tabs[current].style.display = "";
  if (current) {
    document.getElementById("prevBtn").style.display = "";
    document.getElementById("nextBtn").innerHTML = "SUBMIT";
  } else {
    document.getElementById("prevBtn").style.display = "none";
    document.getElementById("nextBtn").innerHTML = "NEXT";
  }
}
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#container {
    visibility: hidden;
}

#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}
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<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Grid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Grid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    
    
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='TreeGrid'></div>        
    </div>
    <script id='dialogtemplate' type="text/x-template">
        <div>
            <div id="tab0" class='tab'>
                <div class="form-row">
                    <div class="form-group col-md-6">
                        <div class="e-float-input e-control-wrapper">
                            <input id="TaskID" required name="TaskID" type="text" value=${if(isAdd)} '' ${else} ${TaskID} ${/if}  ${if(isAdd)} '' ${else} disabled ${/if} />
                            <span class="e-float-line"></span>
                            <label class="e-float-text e-label-top" for="TaskID">TaskID</label>
                        </div>
                    </div>
                </div>
                <div class="form-row">
                    <div class="form-group col-md-6">
                        <div class="e-float-input e-control-wrapper">
                            <input id="TaskName" required name="TaskName" type="text" value=${if(isAdd)} '' ${else} ${TaskName} ${/if} />
                            <span class="e-float-line"></span>
                            <label class="e-float-text e-label-top" for="TaskName">TaskName</label>
                        </div>
                    </div>
                </div>
            </div>
            <div id=tab1 style="display: none" class='tab'>
                <div class="form-row">
                    <div class="form-group col-md-6">
                        <input type="text" name="Duration" id="Duration" value=${if(isAdd)} '' ${else} ${Duration} ${/if} />
                    </div>
                </div>
                <div class="form-row">
                    <div class="form-group col-md-6">
                        <input type="text" name="Priority" id="Priority" value=${if(isAdd)} '' ${else} ${Priority} ${/if} />
                    </div>
                </div>
            </div>
            <div id='footer'>
                <button id="prevBtn" class="e-info e-btn" type="button" style="display: none; float: left">Previous</button>
            
                <button id="nextBtn" class="e-info e-btn" type="button" style="float: right">Next</button>
            </div>
        </div>
    </script>
</body>
</html>