QuestionEventArgs Class

Provides data for events that need a true or false answer to a question.

System.Object
  System.EventArgs
    System.Windows.Forms.QuestionEventArgs

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public class QuestionEventArgs : EventArgs

The QuestionEventArgs type exposes the following members.

  NameDescription
Public methodQuestionEventArgs()Initializes a new instance of the QuestionEventArgs class using a default Response property value of false.
Public methodQuestionEventArgs(Boolean)Initializes a new instance of the QuestionEventArgs class using the specified default value for the Response property.
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  NameDescription
Public propertyResponseGets or sets a value indicating the response to a question represented by the event.
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  NameDescription
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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This class is currently used with the CancelRowEdit and RowDirtyStateNeeded events of the DataGridView control. It allows you to specify a response to events that occur when the control needs the answer to a question. The answer to the question is specified by setting the Response property.

The following code example demonstrates the use of this type. In the example, an event handler reports on the occurrence of the CancelRowEdit event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing Show with Console.WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of type DataGridView named DataGridView1. Then ensure that the event handler is associated with the CancelRowEdit event.

private void DataGridView1_CancelRowEdit(Object sender, QuestionEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "Response", e.Response );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "CancelRowEdit Event" );
}

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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