Chapter 11 Advanced Topics in Windows Forms

1 Week 10 Chapter 11. Advanced Topics in Windows Forms Chapter 12. Enhancing Usability Chapter 15: Crystal Report Chapter 11. Advanced Topics in Windows Forms  11.1 Drag-Drop (P523)  11.2 MDI (P543) 2 11.1 Drag-Drop (P523)  Windows users fall into two general categories:  use the keyboard  use the mouse  Drag and drop: same as cutting and pasting using keyboard 11.1 Drag-Drop (P523) Sequence of events  Dragging is initiated (call DoDragDrop for the source )  The DoDragDrop method takes two parameters:  data  allowedEffects  A new DataObject object is automatically created.  Raises the GiveFeedback event. (display a custom mouse pointer during the drag)  Control with AllowDrop =True can receive drop.  DragEnter raised (mouse pass).  GetDataPresent :make sure that the format of the data  Effect property is used to display the appropriate mouse pointer.  DragDrop: extracts the data from the DataObject 3 11.1 Drag-Drop (P523) Source control Target control +MouseDown -TXT1.DoDragDrop (textBox1.Text, DragDropEffects.Copy ) AllowDrop=true +DragEnter if (e.Data.GetDataPresent (DataFormats.Text)) e.Effect = DragDropEffects.Copy; +DragDrop TXT2.Text = (string)e.Data.GetData ( DataFormats.Text); Drag-Drop: demo: Textbox  Using Textbox  Step1: DragEnter event  Step2: DragDrop event  Step3: MouseDown event 4 Drag-Drop: demo: PictureBox  AllowDrop  DragEnter  DragDrop  KeyState 11.1 Drag-Drop (P523) - demo: treeview  Example: Drag-Drog in Treeview  treeView1_ItemDrag  treeView1_DragEnter  treeView1_DragDrop  treeview1.PointToClient(new Point(e.X, e.Y));  treeview1.GetNodeAt(apoint);  Clone node;  } 5 form tree Xform Yform Xcontrol Ycontrol Point_form(Xform,Yform) Point_control(Xform,Yform) C. PointToClient(Point_form ) 11.1 Drag-Drop (P523) - demo: Listview  Make new collection  Array  ArrayList  List<generic> 6 11.2 MDI  parent form/child form model.  Has a single parent form  The parent form organizes and arranges all of the child documents that are currently open. 11.2 MDI  What is an MDI Form?  Multiple-document interface (MDI) applications allow you to display multiple documents at the same time, with each document displayed in its own window. 7 11.2 MDI  How do I create an MDI Parent form ?  Creating an MDI Parent Form  IsMDIContainer=true  How do I create an MDI Child form ?  Creating MDI Child Forms  Set MdiParent to parent form 11.2 MDI  How do I change the Background color of an MDI Parent form?  private void MDIParent1_Load(object sender, EventArgs e)  {  foreach (Control c in this.Controls) {  try  {  MdiClient m = (MdiClient)c;  m.BackColor = Color.Red;  }  catch (Exception ex)  {}  }  } 8 11.2 MDI  Identifying the Active Child Form  Form aForm;  aForm = this.ActiveMDIChild; 11.2 MDI  Arranging MDI Child Forms  this.LayoutMdi(System.Windows.Forms.Mdi Layout.Cascade); 9 11.2 MDI  Window List Menu  MenuStrip component  Set the MdiWindowListItem property to the menu item 11.2 MDI  How do I check if an MDI Child form already exists, so that we don't show the same form twice?  foreach (Form f in this.MdiChildren)  {  if (f.Text == "Window 2")  {  this.ActivateMdiChild(f);  return;  }  }  Form f1 = new Form();  f1.MdiParent = this;  f1.Show(); 10 Chapter 12. Enhancing Usability  Lesson 2: Using User Assistance Controls and Components  The ProgressBar Control  StatusStrip Control  ToolTip Component  ErrorProvider Component  HelpProvider Component Chapter 12. Using User Assistance Controls and Components  The ProgressBar Control  Visually indicate progress for a time- consuming operation.  Maximum, Minimum, Value, Step progressBar1.Minimum = 0; progressBar1.Maximum = 100; progressBar1.Step = 1; for (int i = 0; i < 101; i++) { CopyFiles(i); progressBar1.PerformStep(); } [...].. .Chapter 12 Using User Assistance Controls and Components StatusStrip Control Display status information about the application ToolStripStatusLabel Text Chapter 12 Using User Assistance Controls and Components ToolTip Component To set a tooltip in the Designer To set a tooltip in code toolTip1.SetToolTip(button1, "This button activates the self-destruct sequence"); 11 Chapter 12 Using User... condition results for a control in the form Turn on errorProvider1.SetError(TextBox1, "Value must be numeric"); Turn off errorProvider1.SetError(TextBox1, ""); Chapter 15: Report 12 Chapter 15: Crystal Report Crystal Report File Crystal Report Viewer Chapter 15: Crystal Report 1 Create Type Dataset 2 Create Crystal Report Template Menu Project -> Add new item -> Crystal Report ->Using Report Wizard->choose... Crystal Report ->Using Report Wizard->choose Typed-Dataset>… 3 Create CrystalReport Viewer 4 Code to connect objects… Example 13 Chapter 15: Crystal Report Typed Dataset Class Crystal Report.Rpt Dataset Crystal Report Viewer Chapter 15: Crystal Report //Create and Fill data into Dataset ds CrystalReport1 c = new CrystalReport1(); c.SetDataSource(ds); crystalReportViewer1.ReportSource = c; 14 . ""); Chapter 15: Report 13 Chapter 15: Crystal Report  Crystal Report File  Crystal Report Viewer Chapter 15: Crystal Report  1. Create Type Dataset  2. Create Crystal Report Template  Menu. Dataset Dataset Crystal Report. Rpt Crystal Report Viewer Class Chapter 15: Crystal Report  //Create and Fill data into Dataset ds   CrystalReport1 c = new CrystalReport1();  c.SetDataSource(ds);  crystalReportViewer1.ReportSource. 1 Week 10 Chapter 11. Advanced Topics in Windows Forms Chapter 12. Enhancing Usability Chapter 15: Crystal Report Chapter 11. Advanced Topics in Windows Forms  11.1