Forms : Enabled/Disable all controls in a container (panel)

Question

I am coding a C# Forms application and would like to know how to enable/disable all controls container within a panel.

Here is my code:

private void EnabledPanelContents(Panel panel, bool enabled) { foreach (var item in panel.Controls) { item.enabled = enabled; } }

There is no enabled property in the panel.Controls collection.

How can I enable/disable all controls container within a panel.

Thanks in advance.

@horHAY Disabling the panel will also disable its scrollbars, which is not necessarily the intent of the OP.. — Makaveli84
– Makaveli84, Commented Jan 20, 2024 at 15:53

Mirjalal · Accepted Answer · 2020-05-31 19:27:31Z

17

You are getting controls as var and iterating on them and var doesn't contain any property Enabled. You need to loop through controls and get every control as Control. Try this

private void EnabledPanelContents(Panel panel, bool enabled) { foreach (Control ctrl in panel.Controls) { ctrl.Enabled = enabled; } }

Enabled can be true or false.

edited May 31, 2020 at 19:27

Mirjalal

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answered Apr 13, 2015 at 8:58

Mairaj Ahmad

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3 Comments

ahmed abdelqader Over a year ago

Voting Up, and I think it is better for Typing ctrl.Enabled = enabled; instead of ctrl.Enabled = true;

Mairaj Ahmad Over a year ago

@ahmedabdelqader you are right but i just gave example so just used true instead of enabled thanks for your suggestion. I will update the answer.

Anshu Over a year ago

Why am i getting this? "system.web.ui.control' does not contain a definition for 'enabled'"

Siva · Accepted Answer · 2017-05-03 10:29:26Z

"How can I enable/disable all controls container within a panel."

A: If you want to disable or enable all controls within a panel, you can directly call,

Panel panel; -> panel.Enabled = true;//For enabling all controls inside the panel. -> panel.Enabled = false;//For disabling all controls inside the panel.

If you want only specific controls inside the panel to be enabled or disabled then you can iterate through the collection of controls and set it's enable state to true or false based on your requirement.

This seems is a much better answer than the accepted answer. It both solves the problem, but also handles such situations as recursion. Though not targeted at XAML, it does allow (in XAML) for one to bind the enabled state to a variable, simplifying code requirements.

Mattu475 · Accepted Answer · 2015-04-13 09:05:18Z

If you declare item as var (in the foreach loop), it won't have the properties of a windows control. You should declare it as a control.

Try this code snippet and it should work:

foreach (Control item in panel.Controls) { item.Enabled = true; // = true: enable all, = false: disable all }

Shyju · Accepted Answer · 2015-04-13 09:14:13Z

Try the following code,

 private void DisableAll_Click(object sender, EventArgs e) { EnabledPanelContents(this.panel1, false); } private void EnabledPanelContents(Panel panel, bool enabled) { foreach (Control item in panel.Controls) { item.Enabled= enabled; } }

Jason Roman · Accepted Answer · 2017-09-12 19:02:24Z

@anshu

if your controls are HTML controls then use

foreach (Control ctrl in myControl1.Controls) if (ctrl is HtmlControl) ((HtmlControl)ctrl).Disabled = true;

Wai Ha Lee · Accepted Answer · 2018-06-02 13:20:11Z

-1

private void Form1_Load(object sender, EventArgs e) { foreach (Control item in panel.Controls) if (ctrl is Button) ((Button)item).Enabled = false; }

edited Jun 2, 2018 at 13:20

Wai Ha Lee

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answered Jun 2, 2018 at 11:46

Kabaci Média

1

1 Comment

Wai Ha Lee Over a year ago

I have fixed the formatting in your answer. In future you should correctly format your posts to make them readable. From review

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