Delete Event: The event page inside of the hanging of the event deleted, and then delete the background code inside the event
A panel is a container
1, Label--Text Display tool
Text: Display of words
Value, Assignment: Lable1. Text
2, TextBox--text box
Value, Assignment: TextBox1.Text
3, RichTextBox--Text field
4. Button--buttons
Click events: Double-click the button
5, RadioButton--radio button
Checked property: Whether to select
foreach (Control i in Panel1. Controls)
{
if (i is RadioButton)
{
RadioButton RA = i as RadioButton;
}
}
If you want to group, place the same group of buttons under the same container
6. CheckBox
Checked property: Whether to select
Tag property: can store custom data
If you want to group, place the same group of buttons under the same container
7. listbox--list Box
Show Data:
Specifying a data source for a ListBox
Listnation.datasource = da. Select ();
Specify values to display
Listnation.displaymember = "Name";
Specify the background value value
Listnation.valuemember = "Code";
Take the value of the selected item:
ListNation.SelectedValue.ToString ()
Listnation.selecteditem as nation;//the selected item, the entity object is taken
If you select more than one data check value:
foreach (Nation data in Listnation.selecteditems)
{
MessageBox.Show (data. Code);
}
Set an item selected:
Listnation.selectedindex =-1;
Listnation.selectedvalue = "n090";
8. combobox--drop-down list
9, Datatimepicker--Date selection control
Set Check:
Datetimepicker1.value = Convert.todatetime (SJ);
Datetimepicker1.text = SJ;
Check value:
DateTimePicker1.Value.ToString ("yyyy mm month dd HH:mm:ss:ms")
10, PictureBox
Appearance, image can select a picture path
Behavior, SizeMode can set the picture size layout way
11, Imagelist
Imagelist1.images[n];
12, NotifyIcon
13, MenuStrip
14, ContextMenuStrip
15. tooltip--mouse move in the prompt box
16, ProgressBar--progress bar
Value to set the current progress of the progress bar
Events for Forms