[dotnet-client] Add dist lock examples (#1095)

* add dist lock to dotnet client doc Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com> * attempt at naming scheme 1 Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com> * yikes put it back Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com> * attempt 2 Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com> * attempt 3 Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com> --------- Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com>

Author: hhunter-ms

daprdocs/content/en/dotnet-sdk-docs/dotnet-client/_index.md

@@ -199,6 +199,64 @@ await foreach (var items in subscribeConfigurationResponse.Source.WithCancellati
 }
 ```
 
+### Distributed lock (Alpha)
+
+#### Acquire a lock
+
+```csharp
+using System;
+using Dapr.Client;
+
+namespace LockService
+{
+ class Program
+ {
+ [Obsolete("Distributed Lock API is in Alpha, this can be removed once it is stable.")]
+ static async Task Main(string[] args)
+ {
+ var daprLockName = "lockstore";
+ var fileName = "my_file_name";
+ var client = new DaprClientBuilder().Build();
+ 
+ // Locking with this approach will also unlock it automatically, as this is a disposable object
+ await using (var fileLock = await client.Lock(DAPR_LOCK_NAME, fileName, "random_id_abc123", 60))
+ {
+ if (fileLock.Success)
+ {
+ Console.WriteLine("Success");
+ }
+ else
+ {
+ Console.WriteLine($"Failed to lock {fileName}.");
+ }
+ }
+ }
+ }
+}
+```
+
+#### Unlock an existing lock
+
+```csharp
+using System;
+using Dapr.Client;
+
+namespace LockService
+{
+ class Program
+ {
+ static async Task Main(string[] args)
+ {
+ var daprLockName = "lockstore";
+ var client = new DaprClientBuilder().Build();
+
+ var response = await client.Unlock(DAPR_LOCK_NAME, "my_file_name", "random_id_abc123"));
+ Console.WriteLine(response.status);
+ }
+ }
+}
+```
+
 ### Manage workflow instances (Alpha)
 
 ```csharp