Cell Changed with Data Validation

Cell Changed with Data Validation.EXCEL.yaml

name: Cell Changed with Data Validation
description: Cell Changed with Data Validation
host: EXCEL
api_set: {}
script:
  content: |
    $("#register-click-handler").click(() => tryCatch(registerClickHandler));

    const myCellAddress = "E2";

    let eventResult;
    let clickHandlerEventResult;

    async function registerClickHandler() {
      await Excel.run(async (context) => {
        const sheet = context.workbook.worksheets.getActiveWorksheet()
        eventResult = sheet.onSelectionChanged.add(handleSelectionChange);

        await context.sync();
        console.log("Event handler successfully registered for onSelectionChanged event in the worksheet.");
      });
    }

    async function handleSelectionChange(event) {
      await Excel.run(async (context) => {
        await context.sync();

        if(event.address === "E2")
        {
          const range = context.workbook.getSelectedRange();

          range.dataValidation.rule = {
            list: {
              inCellDropDown: true,
              source: "=Lists!$A$1:$A$3"
            }
          };
        }
        else
        {
          console.log("removing");
          const sheet = context.workbook.worksheets.getActiveWorksheet()
          let range = sheet.getRange("B2:C5");
          range.dataValidation.clear();
        }

        console.log("Address of current selection: " + event.address);
      });
    }

    /** Default helper for invoking an action and handling errors. */
    async function tryCatch(callback) {
      try {
        await callback();
      } catch (error) {
        // Note: In a production add-in, you'd want to notify the user through your add-in's UI.
        console.error(error);
      }
    }
  language: typescript
template:
  content: |-
    <section class="ms-font-m">
      <p>This sample shows how to register and use a handler for the single-click event.</p>
    </section>

    <section class="samples ms-font-m">
      <h3>Try it out</h3>
      <p>Use the button below to register the event handler. Then, left-click around the worksheet and check the console.
      </p>
      <button id="register-click-handler" class="ms-Button">
        <span class="ms-Button-label">Register click handler</span>
      </button>
    </section>
  language: html
style:
  content: |-
    section.samples {
        margin-top: 20px;
    }

    section.samples .ms-Button, section.setup .ms-Button {
        display: block;
        margin-bottom: 5px;
        margin-left: 20px;
        min-width: 80px;
    }
  language: css
libraries: |
  https://appsforoffice.microsoft.com/lib/1/hosted/office.js
  @types/office-js

  [email protected]/dist/css/fabric.min.css
  [email protected]/dist/css/fabric.components.min.css

  [email protected]/client/core.min.js
  @types/core-js

  [email protected]
  @types/[email protected]