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13、 C window form technology and basic controls (3)
2022-07-04 12:03:00 【Mwyldnje2003】
1、GroupBox Control
- GroupBox Control is created by System.Windows.Forms.GroupBox Class provides the , The function is to provide identifiable groups for other spaces
- On the same page , Show multiple groups of radio choices RadioButton（ If you do not use this control , There can only be one group of single choices in a single form RadioButton）
- Usually , Use the grouping box to subdivide the form by function , for example ： A student is choosing a class and department , To subdivide the form , You can use two GroupBox Control to set , use Text Attribute to achieve the purpose of grouping prompts .
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace _27GropuBox Control
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void btmsubmit_Click(object sender, EventArgs e)
{
string mystr = "";
foreach (Control ourctrl in groupBox2.Controls) //controls Represents a collection of controls
{
if (ourctrl is RadioButton) // Determine the control type
{
if (((RadioButton)ourctrl).Checked) // The result of traversal is ordinary control , Cast to RadioButton Then judge whether it is selected
{
mystr += " You belong to ：" + ourctrl.Text;
}
}
}
foreach (Control ourctrl in groupBox1.Controls) //controls Represents a collection of controls
{
if (ourctrl is RadioButton) // Determine the control type
{
if (((RadioButton)ourctrl).Checked) // The result of traversal is ordinary control , Cast to RadioButton Then judge whether it is selected
{
mystr += "\n Your race is ：" + ourctrl.Text;
}
}
}
MessageBox.Show(mystr, " The result of the selection is ");
}
}
}
2、TabControl Control
TabControl Control is created by System.windows.Forms.TabControl Class provides the , The function is to combine relevant components into a series of tab pages .
Multiline Property is used to set whether to display multiline tabs , If false, There are multiple tabs that cannot be displayed at one time , Provide group arrows to view the remaining tabs
Appearance Attributes refer to whether the display tab is drawn as a button or a regular think card , This attribute has three values Normal（ Draw as general options ）、Buttons（ Draw as regular buttons ）、FaltButton（ Draw as smooth button ）
TabControl Control management TabPage aggregate
add to / Delete TabPage aggregate
Right click 【 Add Tab 】 Or select 【 Remove tab 】 Be careful ： The currently selected tab is removed , Instead of the tab you right-click
TabPages Property to add and remove
TabPages Of text Property is used to set the content displayed on the tab
SelectedTab Property can determine the current tab . Every time you select a new tab , Will get rid of SelectedIndexChanged event , adopt SelectedIndex Properties and SelectedTab Property to confirm the current selection , You can perform specific processing according to the tab .
- Set up TabControl when , Be sure to see TabPages Or choose TabControl Control properties
- Own attributes ctl+tab（ It can be used ctrl+tab Switch tabs , There is no need to set it separately , With this attribute ）
using System;
using System.Windows.Forms;
namespace _28_TabControl Control
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
{
MessageBox.Show(" You click on the "+tabControl1.SelectedTab.Text+"\n The index value is "+tabControl1.SelectedIndex.ToString()," The result of your choice ");
}
}
}
3、MenuStrip Controls and ContexMenuStrip Control
3.1 MenuStrip Control
- Menu is the main way for users to obtain the main functions and use the program in the studio program , For example, create a new file 、 Open files, etc .
- MenuStrip Control by System.windows.Forms.MenuStrip Class provides , But with the previous MainMenu Control , It is the container of the application menu structure . When creating menus , To give MenuStrip Controls to add ToolStripMenu Object this operation can be completed when setting , It can also be done in code .
3.2 ContextMenuStrip Control
ContextMenuStrip Control is created by System.Windows.Forms.ContextMenuStrip Class provides . It's also ToolStripMenu Object's container , Used to create the menu displayed by right clicking the form . The main event is response Click event 
add to contextMenuStrip
3.3 ToolTip— Tooltip control
Hover over a menu , Prompt menu function
add to ToolTip： Put the control where you need prompt
add to ToolTip Content
choice ToolTip Control of placement position ,
4、ToolStrip Control
Toolbar is another common way to get the main functions of an application , More intuitive than the menu bar .
ToolStrip Control use System.Windows.Forms.ToolStrip Class provides the , The function is to create a common toolbar for depression customization , Let these toolbars support advanced user interface and layout functions , Such as docking , floating , Button with text and image , Pull down buttons, etc .
ToolStrip The property manager of the control, the display position and display mode of the control , yes MenuStrip The foundation of the control （Toolstrip Belong to MenuStrip A kind of ）
- AllowItemRecorder：： The value is True, Allow... At run time Alt+ Drag to move the control position , Otherwise you can't move - Dock： determine ToolStrip Display position , When None You can drag it to the desired position .  - LayoutStyle：ToolStrip How to display the controls added in , General coordination Doke Use it together
- GripStyle： Set the visibility of the handle
- Items： subset
- ShowItemToolStrip： Set whether to display the control prompt in the toolbar （ Whether to display a prompt on the mouse over toolbar control ）
- stay ToolStrip Many controls can be used in , Such as toolbar Contains buttons 、 Combo box 、 The text box . In addition to these , Toolbars can also contain other controls
5、StatusStrip Control
- The status bar is used to display brief information about the user's status .
- StatusStrip Control ： from System.Windows.Forms.StatusStrip Class provides , It is used to identify the column at the bottom of the dialog box in the application , Usually used to display short information about the current state of the application .
- stay StatusStrip Can be used in ToolStrip Three of the controls introduced in —ToolStripDropDownButton、ToolStripProgressBarhe and ToolStripSplitButton
- Another control is StatusStrip A dedicated , namely StatusStripStatusLable, The function is to use text and images to display the current status information of the application to the user .
There is something wrong with the following code , The line number is not obtained
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace _32_StatusStrip
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void timer1_Tick(object sender, EventArgs e)
{
toolStripStatusLabel1.Text = DateTime.Now.ToString();
}
private void Form1_Load(object sender, EventArgs e)
{
toolStripStatusLabel1.Text = DateTime.Now.ToString();
}
private void textBox1_Click(object sender, EventArgs e)
{
// The characters in the text are arranged from the first character （ The index value is 0） Began to increase continuously , Calculate the row and column through the index value
// Get the index value of the first character of the current line
int index = textBox1.GetFirstCharIndexOfCurrentLine();
// Calculate line number
int line = textBox1.GetFirstCharIndexFromLine(index)+1;
// Count columns
int column = textBox1.SelectionStart - index + 1;
toolStripStatusLabel4.Text = " The first " + line.ToString() + " That's ok , The first " + column.ToString() + " Column ";
}
private void textBox1_KeyUp(object sender, KeyEventArgs e)
{
// The characters in the text are arranged from the first character （ The index value is 0） Began to increase continuously , Calculate the row and column through the index value
// Get the index value of the first character of the current line
int index = textBox1.GetFirstCharIndexOfCurrentLine();
// Calculate line number
int line = textBox1.GetFirstCharIndexFromLine(index) + 1;
// Count columns
int column = textBox1.SelectionStart - index + 1;
toolStripStatusLabel4.Text = " The first " + line.ToString() + " That's ok , The first " + column.ToString() + " Column ";
}
}
}
Mission implementation
Realize a simple window login
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Mission implementation
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
toolStripStatusLabel1.Text = " Welcome to this system , Please log in before using ";
toolStripStatusLabel2.Text = " Our website ： Under construction , Coming soon ";
toolStripStatusLabel3.Text = DateTime.Now.ToString();
// hide MenuStrip Control
menuStrip1.Visible = false;
toolStrip1.Visible = false;
}
private void timer1_Tick(object sender, EventArgs e)
{
toolStripStatusLabel3.Text = DateTime.Now.ToString();
}
private void button1_Click(object sender, EventArgs e)
{
string name = textBox1.Text;
string pwd = textBox2.Text;
if (name == "darly" && pwd == "darly")
{
MessageBox.Show(" Welcome to the system ", " Login successful ");
this.panel1.Visible = false;
this.menuStrip1.Visible = true;
toolStripStatusLabel1.Text = " welcome " + name + " Log in to this system ";
toolStripMenuItemShow.Enabled = true;
toolStripMenuItemHid.Enabled = false;
}
else
{
MessageBox.Show(" Wrong user name or password , Please re-enter ", " Login failed ");
textBox1.Clear();
textBox2.Clear();
textBox1.Focus();
}
}
private void newly build ToolStripMenuItem_Click(object sender, EventArgs e)
{
int maxval = 0;
foreach (Form myform in this.MdiChildren)
{
int index =Convert.ToInt32( myform.Text.Substring(4, 1));
if (index > maxval)
{
maxval = index;
}
}
registerForm myRegisterForm = new registerForm();
myRegisterForm.MdiParent = this;
myRegisterForm.Text = " Registration information " + Convert.ToString(++maxval);
myRegisterForm.BringToFront();
myRegisterForm.Show();
}
private void Close the current form CToolStripMenuItem_Click(object sender, EventArgs e)
{
Form myactiveForm = this.ActiveMdiChild; // Determine the current window
myactiveForm.Close();
}
private void sign out XToolStripMenuItem_Click(object sender, EventArgs e)
{
DialogResult result = MessageBox.Show(" Please save all files before exiting \n Please confirm whether to exit , To exit, press yes , Please press no to cancel ", " Exit prompt ", MessageBoxButtons.YesNo);
if (result == DialogResult.Yes) this.Close();
}
private void toolStripMenuItemCas_Click(object sender, EventArgs e)
{
LayoutMdi(MdiLayout.Cascade);
}
private void toolStripMenuItemVer_Click(object sender, EventArgs e)
{
LayoutMdi(MdiLayout.TileVertical);
}
private void toolStripMenuItemHor_Click(object sender, EventArgs e)
{
LayoutMdi(MdiLayout.TileHorizontal);
}
private void toolStripMenuItemShow_Click(object sender, EventArgs e)
{
toolStrip1.Visible = true;
toolStripMenuItemHid.Enabled = true;
toolStripMenuItemShow.Enabled = false;
}
private void toolStripMenuItemHid_Click(object sender, EventArgs e)
{
toolStrip1.Visible = false;
toolStripMenuItemHid.Enabled =false;
toolStripMenuItemShow.Enabled = true;
}
private void toolStripButton1_Click(object sender, EventArgs e)
{
int maxval = 0;
foreach (Form myform in this.MdiChildren)
{
int index = Convert.ToInt32(myform.Text.Substring(4, 1));
if (index > maxval)
{
maxval = index;
}
}
registerForm myRegisterForm = new registerForm();
myRegisterForm.MdiParent = this;
myRegisterForm.Text = " Registration information " + Convert.ToString(++maxval);
myRegisterForm.BringToFront();
myRegisterForm.Show();
}
private void toolStripButton2_Click(object sender, EventArgs e)
{
Form myactiveForm = this.ActiveMdiChild; // Determine the current window
myactiveForm.Close();
}
private void toolStripButton3_Click(object sender, EventArgs e)
{
DialogResult result = MessageBox.Show(" Please save all files before exiting \n Please confirm whether to exit , To exit, press yes , Please press no to cancel ", " Exit prompt ", MessageBoxButtons.YesNo);
if (result == DialogResult.Yes) this.Close();
}
private void toolStripButton4_Click(object sender, EventArgs e)
{
LayoutMdi(MdiLayout.Cascade);
}
private void toolStripButton5_Click(object sender, EventArgs e)
{
LayoutMdi(MdiLayout.TileHorizontal);
}
private void toolStripButton6_Click(object sender, EventArgs e)
{
LayoutMdi(MdiLayout.TileVertical);
}
private void toolStripMenuItemAbout_Click(object sender, EventArgs e)
{
MessageBox.Show(" This software is produced by self-study network "," System introduction ");
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Mission implementation
{
public partial class registerForm : Form
{
public registerForm()
{
InitializeComponent();
}
private void registerForm_Load(object sender, EventArgs e)
{
}
string race;
string language;
private void button1_Click(object sender, EventArgs e)
{
foreach (Control outctrl in panel1.Controls)
{
if (outctrl is RadioButton)
if (((RadioButton)outctrl).Checked)
race = outctrl.Text;
}
foreach (Control outctrl in panel2.Controls)
{
if (outctrl is RadioButton)
if (((RadioButton)outctrl).Checked)
language = outctrl.Text;
}
MessageBox.Show(" Your registration information is ：\n full name ：" + textBox1.Text + "\n Company ：" + textBox2.Text + " Gender ：" + comboBox1.SelectedItem + "\n Age :" + numericUpDown2.Value + "\n race :" + race + "\n Favorite language :" + language, " Thank you for registering ");
}
}
}
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