RunTime Features in Windows Forms Calculator
26 Apr 20211 minute to read
This section elaborated keyboard support for the control.
Keyboard Support
Essential Tools Calculator control does the functionality of a normal calculator, using the Mouse or Keyboard, at run time. The control provides Keyboard equivalents for the Calculator buttons. They are listed in the below table.
| Button | Description | Keyboard Equivalent |
|---|---|---|
| Backspace | Deletes the last digit of the displayed number. | BACKSPACE |
| CE | Clears the displayed number. | DELETE |
| C | Clears the current calculation. | ESC |
| MC | Clears any number stored in memory. | CTRL+L |
| 7 | Puts this number in the calculator display. | 7 |
| 8 | Puts this number in the calculator display. | 8 |
| 9 | Puts this number in the calculator display. | 9 |
| / | Divides. | / |
| sqrt | Calculates the square root of the displayed number. | @ |
| MR | Recalls the number stored in memory. The number remains in memory. | CTRL+R |
| 4 | Puts this number in the calculator display. | 4 |
| 5 | Puts this number in the calculator display. | 5 |
| 6 | Puts this number in the calculator display. | 6 |
| * | Multiplies. | * |
| % | Displays the result of multiplication as a percentage. Enter on number, click , enter the second number, and then click %. For example, 50 * 25 % will display 12.5.You can also perform operations with percentages. Enter one number, click the operator(+, -, *, or /), enter the second number, click % and then click =.For example: 50 + 25% (of 50) = 62.5. | % |
| MS | Stores the displayed number in memory. | CTRL+M |
| 1 | Puts this number in the calculator display. | 1 |
| 2 | Puts this number in the calculator display. | 2 |
| 3 | Puts this number in the calculator display. | 3 |
| - | Subtracts. | - |
| 1/x | Calculates the reciprocal of the displayed number. | R |
| M+ | Adds the displayed number to any number already in memory but does not display the sum of these numbers. | CTRL+P |
| +/- | Changes the sign of the displayed number. | F9 |
| . | Inserts a decimal point. To use a different character for the decimal point, click start, point to settings, and then click control panel. Double click Regional Options and then click the Numbers tab. | . or , |
| + | Adds. | + |
| = | Perform any operation on the previous two numbers. To repeat the last operation, click = again. | Enter |