why not work like in example ?

Question

Hi guys i try to run this simple example but VS2019 with Net 4.8 return me this error https://learn.microsoft.com/it-it/dotnet/api/system.windows.forms.toolstripitemclickedeventargs.clickeditem?view=net-5.0# private void ToolStrip1_ItemClicked(Object sender, ToolStripItemClickedEventArgs e) { System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder(); messageBoxCS.AppendFormat("{0} = {1}", "ClickedItem", e.ClickedItem ); messageBoxCS.AppendLine(); MessageBox.Show(messageBoxCS.ToString(), "ItemClicked Event" ); } Severity Code Description Project File Line Suppression State Error CS1061 'EventArgs' does not contain a definition for 'ClickedItem' and no accessible extension method 'ClickedItem' accepting a first argument of type 'EventArgs' could be found (are you missing a using directive or an assembly reference?) ControllerH C:\Users\stefano\source\repos\ControllerH\ControllerH\Form1.cs 28 Active thanks at all

Answer 1

'EventArgs' does not contain a definition for 'ClickedItem'
and no accessible extension method 'ClickedItem' accepting
a first argument of type 'EventArgs' could be found

Change this line:

private void ninjaTraderToolStripMenuItem_Click(object sender, EventArgs e)

to this:

private void ninjaTraderToolStripMenuItem_Click(object sender, ToolStripItemClickedEventArgs e)

• Wayne

Answer 2

I think you may confuse ToolStrip.ItemClicked event and ToolStripItem.Click event.
You need to use the ToolStrip.ItemClicked event, but based on the current information, you seem to be using the ToolStripItem.Click event.

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Answer 3

i did do the example

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace ControllerH
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void fileToolStripMenuItem_Click(object sender, EventArgs e)
        {

        }

        private void ninjaTraderToolStripMenuItem_Click(object sender, EventArgs e)
        {
            ///*
            System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
            messageBoxCS.AppendFormat("{0} = {1}", "ClickedItem", e.ClickedItem);
            messageBoxCS.AppendLine();
            MessageBox.Show(messageBoxCS.ToString(), "ItemClicked Event");
            //*/
            //MessageBox.Show("de made ");
        }
    }
}

Answer 4

Make sure to have the following using statements

using System.Windows.Forms;  
using System.Text;  

Answer 5

It seems to work in case of Windows Forms. Make sure that you add the handler for Toolstrip, not for some item. (Just double-click the Toolstrip to add the handler).

Maybe show your real code and other details.