TreeNodeMouseClickEventArgs Classe

Definição

public ref class TreeNodeMouseClickEventArgs : System::Windows::Forms::MouseEventArgs

public class TreeNodeMouseClickEventArgs : System.Windows.Forms.MouseEventArgs

type TreeNodeMouseClickEventArgs = class
    inherit MouseEventArgs

Public Class TreeNodeMouseClickEventArgs
Inherits MouseEventArgs

Herança

Object

EventArgs

MouseEventArgs

TreeNodeMouseClickEventArgs

Exemplos

O exemplo de código seguinte demonstra como lidar com o NodeMouseDoubleClick evento e como usar o TreeNodeMouseClickEventArgs. Para executar este exemplo, cole o código num formulário Windows que contenha um TreeView chamado treeView1. Preenche treeView1 com os nomes dos ficheiros localizados no c:\ diretório do sistema onde a amostra está a correr e associa o NodeMouseDoubleClick evento de treeView1 ao treeView1_NodeMouseDoubleClick método deste exemplo.

    // If a node is double-clicked, open the file indicated by the TreeNode.
private:
    void InitialTreeView_NodeMouseDoubleClick(Object^ sender,
        TreeNodeMouseClickEventArgs^ e)
    {
        try
        {
            // Look for a file extension.
            if (e->Node->Text->Contains("."))
            {
                System::Diagnostics::Process::Start("c:\\" + e->Node->Text);
            }
        }
        // If the file is not found, handle the exception and inform the user.
        catch (System::ComponentModel::Win32Exception^)
        {
            MessageBox::Show("File not found.");
        }
    }

// If a node is double-clicked, open the file indicated by the TreeNode.
void treeView1_NodeMouseDoubleClick(object sender, TreeNodeMouseClickEventArgs e)
{
    try
    {
        // Look for a file extension.
        if (e.Node.Text.Contains("."))
            System.Diagnostics.Process.Start(@"c:\" + e.Node.Text);
    }
        // If the file is not found, handle the exception and inform the user.
    catch (System.ComponentModel.Win32Exception)
    {
        MessageBox.Show("File not found.");
    }
}

' If a node is double-clicked, open the file indicated by the TreeNode.
Sub treeView1_NodeMouseDoubleClick(ByVal sender As Object, _
    ByVal e As TreeNodeMouseClickEventArgs) _
    Handles treeView1.NodeMouseDoubleClick

    Try
        ' Look for a file extension, and open the file.
        If e.Node.Text.Contains(".") Then
            System.Diagnostics.Process.Start("c:\" + e.Node.Text)
        End If
        ' If the file is not found, handle the exception and inform the user.
    Catch
        MessageBox.Show("File not found.")
    End Try

End Sub