HOW TO PREVENT DUPLICATE ITEMS IN SITECORE

HOW TO PREVENT DUPLICATE ITEMS IN SITECORE As a recommended practice, we should not allow duplicate names, in order to achieve this, we have to create a new event in Sitecore. Events in Sitecore are similar to the events in other systems: something triggers an event and there are handlers that are configured to handle the event.

CREATING AN EVENT HANDLER


While there is neither a class to extend nor an interface to implement, a convention must be followed in order for Sitecore to be in order for a class to be used as an event handler.

The class must have an OnItemCreating method that accepts object and EventArgs
public void OnItemCreating(object sender, EventArgs args)

{

        

   Assert.ArgumentNotNull(sender, "sender");

   Assert.ArgumentNotNull(args, "args");



   using (new SecurityDisabler())

   {

       ItemCreatingEventArgs arg = Event.ExtractParameter(args, 0) as ItemCreatingEventArgs;



       if (Sitecore.Context.Site.Name == "shell")

       {

            var firstOrDefault = arg.Parent.GetChildren()

                                            .FirstOrDefault(x => (arg.ItemName.Equals(x.Name, StringComparison.OrdinalIgnoreCase)) && (arg.ItemId != x.ID));

            

            if (firstOrDefault != null)

            {

                ((SitecoreEventArgs)args).Result.Cancel = true;

                Sitecore.Context.ClientPage.ClientResponse.Alert($"Item '{firstOrDefault.Name}' already exists!");

                return;

            }

        }

   }

}

After the event handler is written, it must be added to the event definition.

CREATE A SITECORE PATCH FILE


Create a new Patch file inside the /App_Config/Include folder. The following is the Sitecore patch file with an example of how the custom event handler is added.

"http://www.sitecore.net/xmlconfig/">

  <sitecore>

    <events>

      <event name="item:creating">

        <handler type="YourNameSpace.PreventDuplicateItem, YourAssembly"

 method="OnItemCreating"/>

      </event>

    </events>

  </sitecore>

</configuration>

https://xchangesitecore.com/how-to-prevent-duplicate-items-in-sitecore/ Vikash Raaj

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