How to delete an item in a SharePoint List within a web part.

Question

I added an item to a list in a web part. Now I want to remove this item from that list.

Answer 1

To delete an item from a SharePoint list, you can use the REST API or the SharePoint client object model. Here are examples of both methods:

Using REST API

You can send a POST request to delete the item:

POST https://{site_url}/_api/web/lists/GetByTitle('YourListName')/items({item_id})
Authorization: "Bearer " + accessToken
Accept: "application/json;odata=verbose"
Content-Type: "application/json"
If-Match: "{etag or *}"
X-HTTP-Method: "DELETE"

Replace YourListName with the name of your list and {item_id} with the ID of the item you want to delete.

Using Client Object Model (JavaScript)

You can also delete an item using the SharePoint JavaScript library:

var clientContext = new SP.ClientContext.get_current();
var list = clientContext.get_web().get_lists().getByTitle('YourListName');
var listItem = list.getItemById(itemId);
listItem.deleteObject();
clientContext.executeQueryAsync(
    function() { console.log('Item deleted successfully'); },
    function(sender, args) { console.log('Error: ' + args.get_message()); }
);

Make sure to replace YourListName and itemId with the appropriate values.

These methods will allow you to remove an item from your SharePoint list effectively.