`ListView.AutoResizeColumns` prevents control from firing events

From @PeterPann23 on Sunday, August 11, 2019 5:19:35 PM

Describe the bug

Created a new project in .net Core 3.0 Added a ListView to the form that I populate based on user actions (button click works just fine) The events on the listview however do not get firred.

To Reproduce

Steps to reproduce the behavior:

1. Visual Studio 2019, Core 3.0 Release 3.0.100-preview7-012821
2. Run this the File New Windows Forms App(.Net Core) Project My project looks like this

<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">

  <PropertyGroup>
    <OutputType>WinExe</OutputType>
    <TargetFramework>netcoreapp3.0</TargetFramework>
    <UseWindowsForms>true</UseWindowsForms>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="System.Data.SqlClient" Version="4.7.0-preview7.19362.9" />
    <PackageReference Include="System.Windows.Forms.DataVisualization" Version="1.0.0-prerelease.19218.1" />
  </ItemGroup>
</Project>

The form uses the “normal” template

partial class Form1
{
	/// <summary>
	/// Required designer variable.
	/// </summary>
	private System.ComponentModel.IContainer components = null;

	/// <summary>
	/// Clean up any resources being used.
	/// </summary>
	/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
	protected override void Dispose(bool disposing)
	{
		if (disposing && (components != null))
		{
			components.Dispose();
		}
		base.Dispose(disposing);
	}

	#region Windows Form Designer generated code

	/// <summary>
	/// Required method for Designer support - do not modify
	/// the contents of this method with the code editor.
	/// </summary>
	private void InitializeComponent()
	{
	// controls before ...
	this.ListViewControlItems = new System.Windows.Forms.ListView();
	// other controls after ...
	
	
	// 
	// ListViewControlItems
	// 
	this.ListViewControlItems.Dock = System.Windows.Forms.DockStyle.Fill;
	this.ListViewControlItems.FullRowSelect = true;
	this.ListViewControlItems.HideSelection = false;
	this.ListViewControlItems.Location = new System.Drawing.Point(0, 37);
	this.ListViewControlItems.MultiSelect = false;
	this.ListViewControlItems.Name = "ListViewControlItems";
	this.ListViewControlItems.Size = new System.Drawing.Size(464, 413);
	this.ListViewControlItems.TabIndex = 2;
	this.ListViewControlItems.UseCompatibleStateImageBehavior = false;
	this.ListViewControlItems.View = System.Windows.Forms.View.Details;
	this.ListViewControlItems.SelectedIndexChanged += new System.EventHandler(this.OnSelectedTrainingFileChanged);
	
	
	}
}

the “Code Behind” part of the form is like this:

public partial class Form1 : Form
{
	public Form1()
	{
		InitializeComponent();
		ListViewControlItems.Click += ListViewControlItems_Click;
	}
	
	private void ListViewControlItems_Click( object sender, EventArgs e)
	{
		throw new NotImplementedException();
	}
}

1. neither the Click event or the SelectedIndexChanged event ever get invoked

Expected behavior

The button click event’s get invoked without any problem, I’d expect the Listview to invoke as well. I now add a button to trigger the SelectedIndex change event and works just fine, also knows if any items are selected

private void OnSelectedTrainingFileChanged(object sender, EventArgs e)
{
	if (ListViewControlItems.SelectedItems.Count > 0)
	{
		ConfigPropGrid.SelectedObject = ListViewControlItems.SelectedItems[0].Tag as NativeConfig;
	}
	else
		ConfigPropGrid.SelectedObject = null;

}

Screenshots

Additional context

Build output:

● Started at 19:17:54
1>------ Build started: Project: CATS.ML.Interfaces, Configuration: Debug Any CPU ------
1>You are using a preview version of .NET Core. See: https://aka.ms/dotnet-core-preview
1>CATS.ML.Interfaces -> D:\Source\Cats.ML\CATS.ML.Interfaces\bin\Debug\netstandard2.1\CATS.ML.Interfaces.dll
2>------ Build started: Project: Cats.Deepbook.IBApi, Configuration: Debug Any CPU ------
3>------ Build started: Project: Cats.ML.Core, Configuration: Debug Any CPU ------
4>------ Build started: Project: CATS.ML.Data, Configuration: Debug Any CPU ------
4>You are using a preview version of .NET Core. See: https://aka.ms/dotnet-core-preview
3>You are using a preview version of .NET Core. See: https://aka.ms/dotnet-core-preview
2>Cats.Deepbook.IBApi -> D:\Source\Deepbook\Cats.Deepbook.IBApi\bin\Debug\netcoreapp3.0\Cats.Deepbook.IBApi.dll
3>ML\Data\Versatile\VersatileMLDataSet.cs(103,64,103,89): warning CS0067: The event 'VersatileMLDataSet.OnColumnsWithNoAddedValue' is never used
3>Cats.ML.Core -> D:\Source\Cats.ML\cats.ml.core\bin\Debug\netstandard2.1\Cats.ML.Core.dll
3>Done building project "Cats.ML.Core.csproj".
4>CATS.ML.Data -> D:\Source\Cats.ML\CATS.ML.Data\bin\Debug\netstandard2.1\CATS.ML.Data.dll
5>------ Build started: Project: Cats.Deepbook.Shared, Configuration: Debug Any CPU ------
5>DeeBookNativeBarBuffer.cs(42,81,42,96): warning CS0067: The event 'DeeBookNativeBarBuffer.OnCrazyMovement' is never used
5>Cats.Deepbook.Shared -> D:\Source\Deepbook\Cats.Deepbook.Shared\bin\Debug\netcoreapp3.0\Cats.Deepbook.Shared.dll
5>Done building project "Cats.Deepbook.Shared.csproj".
6>------ Build started: Project: CATS.Deepbook.NetworkTrader, Configuration: Debug Any CPU ------
6>CATS.Deepbook.NetworkTrader -> D:\Source\Deepbook\CATS.Deepbook.NetworkTrader\bin\Debug\netcoreapp3.0\CATS.Deepbook.NetworkTrader.dll
========== Build: 6 succeeded, 0 failed, 0 up-to-date, 0 skipped ==========
● Finished at 19:17:56 (total time 2.34s)

dotnet --info

.NET Core SDK (reflecting any global.json):
 Version:   3.0.100-preview7-012821
 Commit:    6348f1068a

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.18362
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\3.0.100-preview7-012821\

Host (useful for support):
  Version: 3.0.0-preview7-27912-14
  Commit:  4da6ee6450

.NET Core SDKs installed:
  2.1.800-preview-009677 [C:\Program Files\dotnet\sdk]
  2.1.800-preview-009696 [C:\Program Files\dotnet\sdk]
  2.1.800 [C:\Program Files\dotnet\sdk]
  2.2.300 [C:\Program Files\dotnet\sdk]
  2.2.400-preview-010195 [C:\Program Files\dotnet\sdk]
  2.2.400-preview-010219 [C:\Program Files\dotnet\sdk]
  2.2.400 [C:\Program Files\dotnet\sdk]
  3.0.100-preview6-012264 [C:\Program Files\dotnet\sdk]
  3.0.100-preview7-012821 [C:\Program Files\dotnet\sdk]

.NET Core runtimes installed:
  Microsoft.AspNetCore.All 2.1.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.All 2.1.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.All 2.2.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.All 2.2.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.1.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 2.1.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 2.2.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 2.2.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.0.0-preview6.19307.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.0.0-preview7.19365.7 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 2.1.11 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.1.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.2.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 2.2.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.0.0-preview6-27804-01 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.0.0-preview7-27912-14 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.0.0-preview6-27804-01 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.0.0-preview7-27912-14 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Copied from original issue: aspnet/AspNetCore#13035

[RussKie]

I’ve narrowed it down to ListViewControlItems.AutoResizeColumns(ColumnHeaderAutoResizeStyle.HeaderSize); call. If you comment it out - everything will work as expected.

[Zheng-Li01]

Verified with latest .NET Core 3.0 Preview 9 3.0.100.14004 build, it’s not reproduced for now.