TextBox.ProcessCmdKey(Message, Keys) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Processes a command key.
protected:
override bool ProcessCmdKey(System::Windows::Forms::Message % m, System::Windows::Forms::Keys keyData);
protected override bool ProcessCmdKey (ref System.Windows.Forms.Message m, System.Windows.Forms.Keys keyData);
override this.ProcessCmdKey : Message * System.Windows.Forms.Keys -> bool
Protected Overrides Function ProcessCmdKey (ByRef m As Message, keyData As Keys) As Boolean
Parameters
Returns
true
if the command key was processed by the control; otherwise, false
.
Remarks
New in 4.6.1. In previous versions, the Ctrl+A shortcut key in a TextBox failed to select all text when the ShortcutsEnabled and Multiline properties were both set to true
.. This method enables the Ctrl-A shortcut key to select all text when the ShortcutsEnabled and Multiline properties are both set to true
.
Applications targeting .NET Framework versions 4.0 through 4.6 can take advantage of this method by adding the following to the <runtime>
section of the app.config file:
<AppContextSwitchOverrides value = "Switch.System.Windows.Forms.DoNotSupportSelectAllShortcutInMultilineTextBox=false" />
Applications targeting .NET Framework versions 4.6.1 or newer can opt out of this behavior by adding the following to the <runtime>
section of the app.config file:
<AppContextSwitchOverrides value = "Switch.System.Windows.Forms.DoNotSupportSelectAllShortcutInMultilineTextBox=true" />
Note
If the app.config file already contains an AppContextSwitchOverrides
key, merge the new key value into the existing key. For example, <AppContextSwitchOverrides value = "oldKey=oldValue;Switch.System.Windows.Forms.DoNotSupportSelectAllShortcutInMultilineTextBox=false" />
.
Applies to
.NET
피드백
https://aka.ms/ContentUserFeedback
출시 예정: 2024년 내내 콘텐츠에 대한 피드백 메커니즘으로 GitHub 문제를 단계적으로 폐지하고 이를 새로운 피드백 시스템으로 바꿀 예정입니다. 자세한 내용은 다음을 참조하세요.다음에 대한 사용자 의견 제출 및 보기