windowform下 richTextBox＋openFileDialog+saveFileDialog的使用方法 + 控件不获取焦点时自动关闭

 

richTextBox ＋openFileDialog+saveFileDialog的使用方法

打开：

if (this.openFileDialog.ShowDialog(this) == DialogResult.OK)

              {

                   string tempFilePath = this.filePath;

                   try

                   {

                       this.filePath = this.openFileDialog.FileName;

                       this.historyTextBox.Clear();

                       this.loadFile();

                   }

                   catch(Exception)

                   {

                       MessageBox.Show("Sorry! Can't open file!");

                       this.filePath = tempFilePath;

                   }

              }

保存：

if (this.saveFileDialog.ShowDialog(this) == DialogResult.OK)

              {

                   try

                   {

                       System.IO.File.Delete(this.saveFileDialog.FileName);                       FileStream fs = new FileStream(this.saveFileDialog.FileName,FileMode.OpenOrCreate , FileAccess.Write,FileShare.ReadWrite);

                       StreamWriter sw = new StreamWriter(fs);

                       sw.Write(this.historyTextBox.Text);

                       sw.Close();

                       fs.Close();

                   }

                   catch(Exception)

                   {

                       MessageBox.Show("Sorry! Can't save file!");

                   }

              }

  

判断当控件不获取焦点时自动关闭

System.Drawing.Rectangle rect = this.ClientRectangle;

              if(e.X < rect.X || e.X > rect.X+rect.Width || e.Y <rect.Y || e.Y > rect.Y+rect.Height)

              {

                   this.Close();

              }

获取某一位置上的控件

Control ct = this.GetChildAtPoint(new Point(e.X,e.Y));

string name = ct.Name;