# Call Data Transform when Load Form in Tab layout

**URL:** <https://forums.pega.com/t/call-data-transform-when-load-form-in-tab-layout/4618>\
**Category:** User Experience\
**Tags:** low-code-app-development, financial-services, dev-designer-studio, 8-7-4, user-experience, system-architect\
**Created:** [June 12, 2023, 5:13am UTC](https://forums.pega.com/t/call-data-transform-when-load-form-in-tab-layout/4618 "2023-06-12T05:13:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Eranda\_Weerasingha](https://yyz2.discourse-cdn.com/pega/user_avatar/forums.pega.com/eranda_weerasingha/32/22526_2.png) [@Eranda\_Weerasingha](https://forums.pega.com/u/Eranda_Weerasingha)\
**Post date:** [June 12, 2023, 5:13am UTC](https://forums.pega.com/t/call-data-transform-when-load-form-in-tab-layout/4618/1 "2023-06-12T05:13:08Z")

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Hi Team,

I have dyamic layout wich display type as Tab, and In here I have 3 Tab, so I want to call Data Transform with paramiter when user switch to 3rd Tab (Form Load) ,how can I configer thease task

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**Author:** ![Anoop\_Krishna](https://yyz2.discourse-cdn.com/pega/user_avatar/forums.pega.com/anoop_krishna/32/22727_2.png) [@Anoop\_Krishna](https://forums.pega.com/u/Anoop_Krishna)\
**Post date:** [June 12, 2023, 5:37am UTC](https://forums.pega.com/t/call-data-transform-when-load-form-in-tab-layout/4618/2 "2023-06-12T05:37:49Z")

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@Eranda10274 within the tabbed layout group, those 3 tabs will be 3 dynamic layout.

You can call data transform in this way.

1. Click on 3rd dynamic layout

2. General tab

3. Enable Defer Load contents

4. Enable specify a pre-loading activity

5. Create an activity-\> calling DT inside this activity (configure parameters to both activity and DT)

6. Now you can use that activity in specify a pre-loading activity which you enabled before and you can pass parameter to the activity from here which inturn passes to DT and helps you in processing further.

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<div class="post-metadata">

**Author:** ![Eranda\_Weerasingha](https://yyz2.discourse-cdn.com/pega/user_avatar/forums.pega.com/eranda_weerasingha/32/22526_2.png) [@Eranda\_Weerasingha](https://forums.pega.com/u/Eranda_Weerasingha)\
**Post date:** [June 13, 2023, 6:40am UTC](https://forums.pega.com/t/call-data-transform-when-load-form-in-tab-layout/4618/3 "2023-06-13T06:40:50Z")

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Thank you @Anoop Krishna