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Storage.Put Method

Inserts a given value to the given key in the persistent storage.

Namespace: Neo.SmartContract.Framework.Services

Assembly: Neo.SmartContract.Framework

Syntax

Put(StorageContext context, byte[] key, ByteString value);
Put(StorageContext context, byte[] key, byte[] value);
Put(StorageContext context, byte[] key, BigInteger value);
Put(StorageContext context, ByteString key, ByteString value);
Put(StorageContext context, ByteString key, BigInteger value);
Put(StorageContext context, byte[] key, byte[] value, StorageFlags flags);
Put(StorageContext context, byte[] key, BigInteger value, StorageFlags flags);
Put(StorageContext context, ByteString key, BigInteger value, StorageFlags flags);
Put(StorageContext context, ByteString key, ByteString value, StorageFlags flags);

Parameters:

  • context: Storage context as a StorageContext .

  • key: Key as a byte array or string. Max length 64 bytes.

  • value: Value as a byte array, Biginteger, or string.

  • flag: StorageFlags type, representing a variable or constant in storage.

Return value: void.

Example

public class Contract1 : SmartContract.Framework.SmartContract
{
    public static void Main()
    {
        byte[] key1 = new byte[] { 0 };
        string key2 = "aa";
        byte[] value1 = new byte[] { 1 };
        BigInteger value2 = new BigInteger("1");
        string value3 = "bb";
        Storage.Put(Storage.CurrentContext, key1, value1);
        Storage.Put(Storage.CurrentContext, key1, value2);
        Storage.Put(Storage.CurrentContext, key1, value3);
        Storage.Put(Storage.CurrentContext, key2, value1);
        Storage.Put(Storage.CurrentContext, key2, value2);
        Storage.Put(Storage.CurrentContext, key2, value3);
    }
}

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