ToolJet/docs/versioned_docs/version-2.25.0/how-to/print-multitabs.md

---
id: print-multi-tabs-report
title: Print data from multiple tabs
---


In this guide, we will learn how to print data from multiple tabs in ToolJet. This will be useful when you want to print an invoice or a report from your ToolJet application. For example, a tooljet app that has a set of tabs for each invoice and you want to print all the tabs in one go.


## UI of the app

Build an app with a set of tabs for each record. Each tab will have a set of fields to display the invoice details. In the example below, we have tabs component and each tab has a set of fields to display the record details.

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

**Dropdown**: For selecting a specific patient whose data user want to load in the tabs. 

**Tabs**: Each tab represents different type of medical record for the selected patient. For this app, we have 5 tabs for each patient. Each tab has a id starting from 0 to 4.

**Button**: Clicking on the button will print the data from all the tabs. The button has two events, the details for which we will share later in this guide.

</div>

<div style={{textAlign: 'center'}}>
    <img style={{ border:'0', marginBottom:'15px', borderRadius:'5px', boxShadow: '0px 1px 3px rgba(0, 0, 0, 0.2)' }} className="screenshot-full" src="/img/how-to/print-multitabs/appui.png" alt="Print data from multiple tabs" />
</div>

## Load data from database

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

For this app, we are using tooljet database with table name `patient_data`. We created a query called `getPatientList` to fetch data from the database.

<div style={{textAlign: 'center'}}>
    <img style={{ border:'0', marginBottom:'15px', borderRadius:'5px', boxShadow: '0px 1px 3px rgba(0, 0, 0, 0.2)' }} className="screenshot-full" src="/img/how-to/print-multitabs/data.png" alt="Print data from multiple tabs" />
</div>

</div>

Once the data is successfully loaded on the tabs and the app is working as expected, we can move to the next step.

## Printing data from multiple tabs

To print data from multiple tabs, we will create few javascript queries. Using event handlers, we will run these javascript queries in a sequence to print data from all the tabs. 

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

Before we start creating the javascript queries, we need to add a few events to the button component:

| Event | Action | Description |
|:--- |:--- |:--- |
| `On click` | Set variable | Set a variable with key `lastSelectedTab` and value to `{{components.tabs1.currentTab}}`. This will store the id of the currently selected tab in the variable. |
| `On click` | Run query | Select the query named `viewTabs` to run when the button is clicked. |

**Note**: We will create the `viewTabs` query later in this guide, so you will need to add the event to the button after you've created the query.

<div style={{textAlign: 'center'}}>
    <img style={{ border:'0', marginBottom:'15px', borderRadius:'5px', boxShadow: '0px 1px 3px rgba(0, 0, 0, 0.2)' }} className="screenshot-full" src="/img/how-to/print-multitabs/buttonevents.png" alt="Print data from multiple tabs" />
</div>

</div>

### viewTabs query

The `viewTabs` query is a javascript query that will run a loop to print data from all the tabs. The query will set a variable `tabIndex` that will store the id of the tab to print data from. he query will loop and increment the tabsIndex variable by 1, using the setVariable action, till the value is less than 5.

```js title="viewTabs"
if ((variables?.tabIndex ?? undefined) == undefined) { 
  await actions.setVariable("tabIndex", "0"); // set tabIndex to 0 if it is not set
} else if (parseInt(variables.tabIndex) < 5){
  await actions.setVariable("tabIndex", (parseInt(variables.tabIndex) + 1).toString()); // increment tabIndex by 1
}
```

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

**This query will have 3 events:**

#### 1. Query Success:

For the first Query Success event, we will add a `Control component` action which will `Run only if` `{{parseInt(variables.tabIndex) < 5}}` is true, i.e. if the tabIndex is less than 5. This action will control the `Tabs` component to `Set current tab` to `{{variables.tabIndex}}`. This will set the current tab to the tab with id stored in the `tabIndex` variable, i.e. it will set the current tab to the tab whose id got recently stored in the tabIndex variable via the viewTabs query.

<div style={{textAlign: 'center'}}>
    <img style={{ border:'0', marginBottom:'15px', borderRadius:'5px', boxShadow: '0px 1px 3px rgba(0, 0, 0, 0.2)' }} className="screenshot-full" src="/img/how-to/print-multitabs/q1.png" alt="Print data from multiple tabs" />
</div>

</div>

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

#### 2. Query Success:

For the second Query Success event, we will select `Run Query` action which will `Run only if` `{{parseInt(variables.tabIndex) < 5}}` is true. The query for this event handler will be `getTabsHTML`. We will also add a `debounce` of `100` milliseconds to this event handler.

**Note:** we will create the `getTabsHTML` query later in this guide, so you will need to add the event to the button after you've created the query.

<div style={{textAlign: 'center'}}>
    <img style={{ border:'0', marginBottom:'15px', borderRadius:'5px', boxShadow: '0px 1px 3px rgba(0, 0, 0, 0.2)' }} className="screenshot-full" src="/img/how-to/print-multitabs/q2.png" alt="Print data from multiple tabs" />
</div>

</div>

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

#### 3. Query Success:

For the third Query Success event, we will select `Run Query` action which will `Run only if` `{{parseInt(variables.tabIndex) === 5}}` is true. The query for this event handler will be `printPDF`. This action will only run when the `tabIndex` is equal to 5, i.e. the last iteration of the loop and we will print the data from all the tabs in this iteration.

**Note:** we will create the `printPDF` query later in this guide, so you will need to add the event to the button after you've created the query.

<div style={{textAlign: 'center'}}>
    <img style={{ border:'0', marginBottom:'15px', borderRadius:'5px', boxShadow: '0px 1px 3px rgba(0, 0, 0, 0.2)' }} className="screenshot-full" src="/img/how-to/print-multitabs/q3.png" alt="Print data from multiple tabs" />
</div>

</div>

Now that we have created the `viewTabs` query, we can go to the [Download](/docs/how-to/print-multi-tabs-report#printing-data-from-multiple-tabs) button and add the `viewTabs` query to the `On click` event handler.

### getTabsHTML query

The `getTabsHTML` is javascript query that will get the html of the current tab and store it in a variable. The query will have a variable `tabsHtml` that will store the html of all the tabs in the form of an array.

```js title="getTabsHTML"
actions.setVariable( // set tabsHtml variable
  "tabsHtml", 
  [...(variables?.tabsHtml ?? [])].concat([  // add html of the current tab to the tabsHtml variable
    ((variables?.tabIndex ?? -1) > 0 
      ? `<div style="top: ${ // add a div with height of 100vh to the html of the current tab
          variables?.tabIndex ?? -1 
        }00vh; position: absolute;">` // this will help to print data from all the tabs in one go
      : "") + 
      document.getElementsByClassName("widget-" + components.tabs1.id)[0] // get the html of the current tab
        .innerHTML +
      "</div>", // add the html of the current tab to the tabsHtml variable
  ])
);
```

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

**This query will have 1 event:**

#### 1. Query Success:

This event will have an action to `Run Query` named `viewTabs`. This will run the `viewTabs` query after the `getTabsHTML` query is successfully executed.

<div style={{textAlign: 'center'}}>
    <img style={{ border:'0', marginBottom:'15px', borderRadius:'5px', boxShadow: '0px 1px 3px rgba(0, 0, 0, 0.2)' }} className="screenshot-full" src="/img/how-to/print-multitabs/gettabshtml.png" alt="Print data from multiple tabs" />
</div>

</div>

Now that we have created the `getTabsHTML` query, we can go to the [viewTabs](/docs/how-to/print-multi-tabs-report#2-query-success) query and add the `getTabsHTML` query to the `Query Success` event handler.

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

### printPDF query

The `printPDF` query is a JavaScript query that generates a printable document from the HTML content stored in the `tabsHtml` variable. This query will open a new window and write the HTML content of all the tabs. This will allow the user to download a PDF document that includes the formatted content of all the tabs.

```js title="printPDF"
var printContents = variables.tabsHtml; // get the html of all the tabs from the tabsHtml variable

var winPrint = window.open("", "", "width=900,height=650"); // Open a New Window for Printing

var styles = document.querySelectorAll('link, style');
var stylesHtml = "";
for (var i = 0; i < styles.length; i++) {
  stylesHtml += styles[i].outerHTML;
}                                       // gather styles from the current page

stylesHtml += '<style>@page { size: landscape; }</style>'; // add landscape orientation to the page

winPrint.document.write(
  "<html><head>" +
    stylesHtml +
    "</head><body>" +
  	`<img src="https://img.freepik.com/free-vector/hospital-logo-design-vector-medical-cross_53876-136743.jpg" class="zoom-image-wrap" style="object-fit: contain; width: 177.86px; height: 36px; position: absolute; top: 100px;">`
); // add styles and logo to the page

for (var j = 0; j < printContents.length; j++) {
  winPrint.document.write(printContents[j]);
} // add html of all the tabs to the page

winPrint.document.write("</body></html>"); // Document Finalization and Printing
winPrint.document.close();
winPrint.focus();
winPrint.print();
winPrint.close();
```

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

**This query will have 3 events:**

#### 1. Query Success:

This event will have an action to `Unset Variable` named `tabsIndex`. This will unset the `tabsIndex` variable after the `printPDF` query is successfully executed.

<div style={{textAlign: 'center'}}>
    <img style={{ border:'0', marginBottom:'15px', borderRadius:'5px', boxShadow: '0px 1px 3px rgba(0, 0, 0, 0.2)' }} className="screenshot-full" src="/img/how-to/print-multitabs/unsetvar1.png" alt="Print data from multiple tabs" />
</div>

</div>

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

#### 2. Query Success:

This event will have an action to `Unset Variable` named `tabsHtml`. This will unset the `tabsHtml` variable after the `printPDF` query is successfully executed.

<div style={{textAlign: 'center'}}>
    <img style={{ border:'0', marginBottom:'15px', borderRadius:'5px', boxShadow: '0px 1px 3px rgba(0, 0, 0, 0.2)' }} className="screenshot-full" src="/img/how-to/print-multitabs/unsetvar2.png" alt="Print data from multiple tabs" />
</div>

</div>

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

#### 3. Query Success:

This event will have an action to `Control component`. This will control the `Tabs` component to `Set current tab` to `{{variables.lastSelectedTab}}` after the `printPDF` query is successfully executed. This will set the current tab to the tab that was selected before the `Download` button was clicked.

<div style={{textAlign: 'center'}}>
    <img style={{ border:'0', marginBottom:'15px', borderRadius:'5px', boxShadow: '0px 1px 3px rgba(0, 0, 0, 0.2)' }} className="screenshot-full" src="/img/how-to/print-multitabs/controlcomp2.png" alt="Print data from multiple tabs" />
</div>

</div>

<div style={{paddingTop:'24px', paddingBottom:'24px'}}>

Now that we have created the `printPDF` query, we can go to the [viewTabs](/docs/how-to/print-multi-tabs-report#3-query-success) query and add the `printPDF` query to the `Query Success` event handler.

Finally, we can test the app by selecting a patient and clicking on the `Download` button. This will download a PDF document with the data from all the tabs.

</div>

</div>