# How To: Number Table Rows

Use the `rownum` keyword when tables need a visible line counter.

### Problem

You want to add row numbers to your related list tables.

### Solution 1: Basic Row Numbers

```
<!--{{!
<lineitems>
<listname>opportunitylineitems</listname>
<column header="#">rownum</column>
<column>PricebookEntry.Product2.name</column>
<column prefix="$" format-number="#,###.##">unitprice</column>
</lineitems>
}}-->
```

**Result:**

```
| # | Product | Price  |
|---|---------|--------|
| 1 | Widget  | $10.00 |
| 2 | Gadget  | $25.00 |
```

### Solution 2: Custom Starting Number

**Start at 10:**

```
<column startIndex="9" header="#">rownum</column>
```

**Result:** Numbering starts at `10`.

### Solution 3: Formatted Row Numbers

**Add Prefix and Postfix:**

```
<column prefix="Item " postfix=":" header="Line">rownum</column>
```

**Result:**

```
| Line    | Product | Price  |
|---------|---------|--------|
| Item 1: | Widget  | $10.00 |
| Item 2: | Gadget  | $25.00 |
```

### Tips

* `rownum` is a special keyword, not a field name.
* Numbering starts at `1` by default.
* `startIndex="3"` starts numbering at `4`.
* Combine it with `prefix` and `postfix` for custom labels.


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