How to get custom lookup field value and assign to other lookup fields value in LWC | How to assign default value to lookup field in LWC | Find lookup value and assign this value to another lookup in LWC

Hey guys, today in this post we are going to learn about How to get custom lookup field value and assign to other lookup fields value in LWC.

Create relationships to link objects with each other, so that when your users view records, they can also see related data.

Lookup Links two objects together. Lookup relationships are similar to master-detail relationships, except they don’t support sharing or roll-up summary fields. To more details about Lookup relationships, Click Here.

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Final Output →

You can download file directly from github by Click Here.

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Find the below steps ▾

Create Lightning Web Component HTML

Step 1:- Create Lightning Web Component : lookupFieldValueLwc.html

SFDX:Lightning Web Component >> New >> lookupFieldValueLwc.html

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lookupFieldValueLwc.html [Lightning Web Component HTML]

```
   <template>
```

    <lightning-card title="Lookup Field Value" style="font: size 18px; ">

         <div class="slds slds-grid slds-wrap slds-p-around_medium">

```
 
```

            <div class="slds-col slds-size_6-of-12">

                <div class="slds-form-element">

                    <div class="slds-form-element_controller">

                       <lightning-record-edit-form object-api-name="Contact">

                           <lightning-input-field field-name="AccountId" data-type="input-field" value={accountId} name="accountId" onchange={handleChangeAction}>

                           </lightning-input-field>

                       </lightning-record-edit-form>

```
                    </div>
```
```
                </div>
```
```
            </div>
```
```
 
```

            <div class="slds-col slds-size_6-of-12">

                <div class="slds-form-element">

                    <div class="slds-form-element_controller">

                       <lightning-record-edit-form object-api-name="Contact">

                           <lightning-input-field field-name="ReportsToId" data-type="input-field" value={reportsToId} name="reportsToId" onchange={handleChangeAction}>

                           </lightning-input-field>

                       </lightning-record-edit-form>

```
                    </div>
```
```
                </div>
```
```
            </div>
```
```
 
```
```
         </div>
```
```
    </lightning-card>
```
```
</template>
```

Create Lightning Web Component JavaScript

Step 2:- Create Lightning Web Component : lookupFieldValueLwc.js

SFDX:Lightning Web Component >> New >> lookupFieldValueLwc.js

lookupFieldValueLwc.js [LWC JavaScript File]

   import { LightningElement,track, api } from 'lwc';

```
 
```

export default class LookupFieldValueLwc extends LightningElement {

```
    @track accountId ;
```
```
    @track reportsToId;
```
```
 
```
```
    handleChangeAction(event){
```

        if(event.target.name == 'accountId'){

            this.accountId = event.target.value;

            //window.console.log('accountId ##' + this.accountId);

            if(this.accountId == '0015g00000y2ZQEAA2')

```
            {
```

                this.reportsToId = '0035g00000FroJAAAZ';

```
            }else{
```
```
                this.reportsToId = '';
```
```
            }
```
```
 
```
```
        }
```

        if(event.target.name == 'reportsToId'){

            this.reportsToId = event.target.value;

            window.console.log('reportsToId ##' + this.reportsToId);

```
        }
```
```
    }
```
```
 
```
```
}
```

Create Lightning Web Component Meta XML

Step 3:- Create Lightning Web Component : lookupFieldValueLwc.js-meta.xml

SFDX:Lightning Web Component >> New >> lookupFieldValueLwc.js-meta.xml

lookupFieldValueLwc.js-meta.xml [LWC Meta Data XML]

   <?xml version="1.0" encoding="UTF-8"?>

<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">

```
    <apiVersion>56.0</apiVersion>
```
```
    <isExposed>true</isExposed>
```
```
    <targets> 
```

        <target>lightning__AppPage</target>

        <target>lightning__RecordPage</target>

        <target>lightning__HomePage</target>

```
    </targets>
```
```
</LightningComponentBundle>
```

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FAQ (Frequently Asked Questions)

What is the use of @track in LWC?

The @track decorator is used to track changes to a property in a LWC component. This allows the component to automatically rerender itself whenever the value of the decorated property changes.

How do I fetch picklist values in LWC?

Import getPicklistValues wire method in your js file to get picklist values. Import getObjectInfo wire method in your js file to get default record type id. Call getObjectInfo wire to get default recordtype id. Now call getPicklistValues to get picklist values.

What is lookup formula value?

Lookup_value can be a value or a reference to a cell. The range of cells in which the VLOOKUP will search for the lookup_value and the return value. You can use a named range or a table, and you can use names in the argument instead of cell references. The first column in the cell range must contain the lookup_value.

How to get custom lookup field value and assign to other lookup fields value in LWC | How to assign default value to lookup field in LWC | Find lookup value and assign this value to another lookup in LWC

Create Lightning Web Component HTML

lookupFieldValueLwc.html [Lightning Web Component HTML]

Create Lightning Web Component JavaScript

lookupFieldValueLwc.js [LWC JavaScript File]

Create Lightning Web Component Meta XML

lookupFieldValueLwc.js-meta.xml [LWC Meta Data XML]

What is the use of @track in LWC?

How do I fetch picklist values in LWC?

What is lookup formula value?

Related Topics | You May Also Like

Vijay Kumar

Create Lightning Web Component HTML

lookupFieldValueLwc.html [Lightning Web Component HTML]

Create Lightning Web Component JavaScript

lookupFieldValueLwc.js [LWC JavaScript File]

Create Lightning Web Component Meta XML

lookupFieldValueLwc.js-meta.xml [LWC Meta Data XML]

What is the use of @track in LWC?

How do I fetch picklist values in LWC?

What is lookup formula value?

Related Topics | You May Also Like

Vijay Kumar

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