Class UpdateContractExtensions

Extension methods for updating smart contract properties.

Inheritance

object

UpdateContractExtensions

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Hiero

Assembly: Hiero.dll

Syntax

public static class UpdateContractExtensions

Methods

UpdateContractAsync(ConsensusClient, UpdateContractParams, Action<IConsensusContext>?)

Updates the changeable properties of a hedera network contract.

Declaration

public static Task<TransactionReceipt> UpdateContractAsync(this ConsensusClient client, UpdateContractParams updateParameters, Action<IConsensusContext>? configure = null)

Parameters

Type	Name	Description
ConsensusClient	client	The Consensus Node Client executing the contract update.
UpdateContractParams	updateParameters	The contract update parameters, includes a required EntityId reference to the Contract to update plus a number of changeable properties of the Contract.
Action<IConsensusContext>	configure	Optional callback method providing an opportunity to modify the execution configuration for just this method call. It is executed prior to submitting the request to the network.

Returns

Type	Description
Task<TransactionReceipt>	A transaction receipt indicating success of the operation.

Examples

// Update mutable contract properties — admin key, memo, renew period,
// auto-association limit. Null properties are left unchanged.
// Contracts created without an Administrator are immutable.
var receipt = await client.UpdateContractAsync(new UpdateContractParams
{
    Contract = contract,
    Administrator = newAdmin,
    Memo = "Rotated admin 2026-Q2"
});
Console.WriteLine($"Update status: {receipt.Status}");

Exceptions

Type	Condition
ArgumentException	If required arguments are missing or invalid.
InvalidOperationException	If required context configuration is missing.
PrecheckException	If the gateway node refused the transaction. Only a code about the transaction itself proves it did not execute; any other code leaves the outcome unknown, so settle it by its transaction id on a mirror node rather than resubmitting it (see PrecheckException).
ConsensusException	If the outcome could not be confirmed: the transaction may have executed, so settle it by its transaction id on a mirror node rather than resubmitting it.
TransactionException	If the network rejected the update request as invalid or had missing data.