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VB.NET - Validación KeyPress

Froggy Jumps

Played 54

About this activity

Quiz de VB.NET Validación KeyPress

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Ecuador

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VB.NET - Validación KeyPress
 

Froggy Jumps

VB.NET - Validación KeyPressOnline version

Quiz de VB.NET Validación KeyPress

by Mgtr. Jake Muñoz
1

Cuando usamos KeyPress en la validación de entrada de datos

2

Usamos Try...Catch

3

¿En qué momento se ejecuta la validación preventiva mediante el evento KeyPress?

4

¿Qué sucede si no se utiliza la función Trim(), en un campo que parece vacío?

5

¿Para qué se utiliza la función "IsWhiteSpace"?

6

¿Cuál es la función de "IsControl"?

7

Para permitir que el usuario borre con Backspace, qué función de Char debe usarse en la condición?

8

¿Qué efecto técnico tiene establecer e.Handled = True dentro de KeyPress?

9

Para validar un campo 'Txt_nombre' en el cual se debe ingresar el nombre y apellido, qué funciones en el KeyPress se deben usar?

10

Para validar sólo números y que permita borrar usamos: If Not Char.IsDigit(e.KeyChar) And Not Char.IsControl(e.KeyChar)

11

La línea de código para capturar el texto del control y aplicamos Trim() es .....

12

¿Cuál es la ventaja de usar MaxLength en un TextBox?

13

Se usa MaskedTextBox porque......

14

Para un teléfono con formato (000 - 000-0000), cuál es el control más eficiente para el ingreso de datos?

15

MaxLength es fundamental porque....

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