> For the complete documentation index, see [llms.txt](https://docs.yarnspinner.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yarnspinner.dev/3.1/api/csharp/yarn/yarn.dialogue.md). # Dialogue Class in [Yarn](/3.1/api/csharp/yarn.md) Inherits from `System.Object` ## Summary Co-ordinates the execution of Yarn programs. ```csharp public class Dialogue : ISmartVariableEvaluator ``` ## Constructors | Name | Description | | -------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------ | | [Dialogue(Yarn.IVariableStorage)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue..ctor.md) | Initializes a new instance of the [Dialogue](/3.1/api/csharp/yarn/yarn.dialogue.md) class. | ## Fields | Name | Description | | ------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------ | | [DefaultStartNodeName](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.defaultstartnodename.md) | The node that execution will start from. | | [NoOptionSelected](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.nooptionselected.md) | The value to indicate to the dialogue runner that no option was selected and dialogue should fallthrough to the rest of the program. | ## Methods | Name | Description | | ---------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [Continue()](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.continue.md) | Starts, or continues, execution of the current Program. | | [GetHeaders(string)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.getheaders.md) | Gets the collection of headers present on the node named `nodeName` . | | [GetHeaderValue(string,string)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.getheadervalue.md) | Gets the value of the header named `headerName` on the node named `nodeName` , or `null` if the header can't be found. | | [GetSaliencyOptionsForNodeGroup(string)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.getsaliencyoptionsfornodegroup.md) | Queries the [Dialogue](/3.1/api/csharp/yarn/yarn.dialogue.md) for what content could possibly run if the node group nodeGroup was run. | | [GetStringIDForNode(string)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.getstringidfornode.md) | Returns the string ID that contains the original, uncompiled source text for a node. | | [GetTagsForNode(string)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.gettagsfornode.md) | Returns the tags for the node `nodeName` . | | [HasSalientContent(string)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.hassalientcontent.md) | Returns if the node group has any potential nodes to be run based on the current salient selector. | | [IsNodeGroup(string)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.isnodegroup.md) | Gets a value indicating whether `nodeName` is the name of a valid node group in the program. | | [NodeExists(string)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.nodeexists.md) | Gets a value indicating whether a specified node exists in the Program. | | [SetNode(string)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.setnode.md) | Prepares the [Dialogue](/3.1/api/csharp/yarn/yarn.dialogue.md) that the user intends to start running a node. | | [SetProgram(Program)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.setprogram.md) | Loads all nodes from the provided [Program](/3.1/api/csharp/yarn/yarn.program.md) . | | [SetSelectedOption(int)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.setselectedoption.md) | Signals to the [Dialogue](/3.1/api/csharp/yarn/yarn.dialogue.md) that the user has selected a specified [Option](/3.1/api/csharp/yarn/yarn.optionset/yarn.optionset.option.md) . | | [SignalContentComplete()](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.signalcontentcomplete.md) | Signals that the currently running content has completed synchronously. | | [Stop()](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.stop.md) | Immediately stops the [Dialogue](/3.1/api/csharp/yarn/yarn.dialogue.md) . | | [TryGetSmartVariable(string,T)](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.trygetsmartvariable.md) | Evaluate the value of a smart variable named `name` . | | [UnloadAll()](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.unloadall.md) | Unloads all nodes from the Dialogue. | ## Properties | Name | Description | | ------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [CommandHandler](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.commandhandler.md) | Gets or sets the [CommandHandler](/3.1/api/csharp/yarn/yarn.commandhandler.md) that is called when a command is to be delivered to the game. | | [ContentSaliencyStrategy](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.contentsaliencystrategy.md) | Gets or sets the content saliency strategy used by this [Dialogue](/3.1/api/csharp/yarn/yarn.dialogue.md) . | | [CurrentNode](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.currentnode.md) | Gets the name of the node that this Dialogue is currently executing. | | [DialogueCompleteHandler](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.dialoguecompletehandler.md) | Gets or sets the [DialogueCompleteHandler](/3.1/api/csharp/yarn/yarn.dialoguecompletehandler.md) that is called when the dialogue reaches its end. | | [IsActive](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.isactive.md) | Gets a value indicating whether the Dialogue is currently executing Yarn instructions. | | [Library](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.library.md) | Gets the [Library](/3.1/api/csharp/yarn/yarn.library.md) that this Dialogue uses to locate functions. | | [LineHandler](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.linehandler.md) | Gets or sets the [LineHandler](/3.1/api/csharp/yarn/yarn.linehandler.md) that is called when a line is ready to be shown to the user. | | [LogDebugMessage](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.logdebugmessage.md) | Invoked when the Dialogue needs to report debugging information. | | [LogErrorMessage](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.logerrormessage.md) | Invoked when the Dialogue needs to report an error. | | [NodeCompleteHandler](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.nodecompletehandler.md) | Gets or sets the [NodeCompleteHandler](/3.1/api/csharp/yarn/yarn.nodecompletehandler.md) that is called when a node is complete. | | [NodeNames](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.nodenames.md) | Gets the names of the nodes in the currently loaded Program. | | [NodeStartHandler](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.nodestarthandler.md) | Gets or sets the [NodeStartHandler](/3.1/api/csharp/yarn/yarn.nodestarthandler.md) that is called when a node is started. | | [OptionsHandler](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.optionshandler.md) | Gets or sets the [OptionsHandler](/3.1/api/csharp/yarn/yarn.optionshandler.md) that is called when a set of options are ready to be shown to the user. | | [PrepareForLinesHandler](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.prepareforlineshandler.md) | Gets or sets the [PrepareForLinesHandler](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.prepareforlineshandler.md) that is called when the dialogue anticipates delivering some lines. | | [VariableStorage](/3.1/api/csharp/yarn/yarn.dialogue/yarn.dialogue.variablestorage.md) | Gets or sets the object that provides access to storing and retrieving the values of variables. |