本文整理汇总了C#中System.Windows.Forms.Control.DoubleClick事件的典型用法代码示例。如果您正苦于以下问题：C# Control.DoubleClick事件的具体用法？C# Control.DoubleClick怎么用？C# Control.DoubleClick使用的例子？那么恭喜您, 这里精选的事件代码示例或许可以为您提供帮助。
在下文中一共展示了Control.DoubleClick事件的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: listBox1_DoubleClick
// This example uses the DoubleClick event of a ListBox to load text files
// listed in the ListBox into a TextBox control. This example
// assumes that the ListBox, named listBox1, contains a list of valid file
// names with path and that this event handler method
// is connected to the DoublClick event of a ListBox control named listBox1.
// This example requires code access permission to access files.
private void listBox1_DoubleClick(object sender, System.EventArgs e)
{
// Get the name of the file to open from the ListBox.
String file = listBox1.SelectedItem.ToString();
try
{
// Determine if the file exists before loading.
if (System.IO.File.Exists(file))
{
// Open the file and use a TextReader to read the contents into the TextBox.
System.IO.FileInfo myFile = new System.IO.FileInfo(listBox1.SelectedItem.ToString());
System.IO.TextReader myData = myFile.OpenText();;
textBox1.Text = myData.ReadToEnd();
myData.Close();
}
}
// Exception is thrown by the OpenText method of the FileInfo class.
catch(System.IO.FileNotFoundException)
{
MessageBox.Show("The file you specified does not exist.");
}
// Exception is thrown by the ReadToEnd method of the TextReader class.
catch(System.IO.IOException)
{
MessageBox.Show("There was a problem loading the file into the TextBox. Ensure that the file is a valid text file.");
}
}