# GetHeaderValue(string,string)

Method in [Dialogue](/3.1/api/csharp/yarn/yarn.dialogue.md)

## Summary

Gets the value of the header named `headerName` on the node named `nodeName` , or `null` if the header can't be found.

```csharp
public string? GetHeaderValue(string nodeName, string headerName)
```

## Remarks

If the node has more than one header named `headerName` , the first one is used.

## Parameters

| Name                | Description             |
| ------------------- | ----------------------- |
| `string` nodeName   | The name of the node.   |
| `string` headerName | The name of the header. |

## Returns

The value of the first header on the node with the specified header value.


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