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Legacy Documentation

Mathematica 8 (2010)

This is documentation for Mathematica 8, which was
based on an earlier version of Wolfram Language.
View current documentation (Version 14.3)

InputField

InputField
represents a blank editable input field.
InputField [x]
represents an editable input field that currently contains the expression x.
InputField [Dynamic[x]]
takes the contents of the input field to be the dynamically updated current value of x, with the value of x being reset if new contents are entered.
InputField [x, String]
represents an input field whose contents are taken to be a string.
InputField [x, Number]
represents an input field whose contents are taken to be a number.
InputField
represents an input field whose contents are taken to be of the specified type.
  • The following are possible types:
Boxes raw boxes
Expression expression (default)
Hold[Expression] expression in held form
Number number
String string
  • The setting for the input field is not updated until its contents are explicitly entered, typically by pressing Enter or by moving focus away from the input field.
  • If the data given in the input field cannot be converted to the type specified, then the setting for the input field will not be updated.
  • For String and types the conversion can always be done.
  • For expressions, a blank input field is taken to have value Null . For strings and boxes, it is taken to have value .
  • Tab moves between input fields.
  • The following options can be given:
Appearance Automatic the overall appearance of the input field
Background Automatic input field background color
BaseStyle {} base style specifications for the input field
ContentPadding True whether to shrink the margins tightly around the contents
ContinuousAction False whether to update continuously every time any change is made to the input
Enabled Automatic whether the input field is enabled or grayed out
FieldHint Null expression to display when the input field is empty
FieldHintStyle {} style to apply to the field hint
FieldMasked False whether to mask characters in the input field
FieldSize {{20., 20.},{1.,Infinity}} the size of the input field
FrameMargins Automatic minimum margins to leave inside the frame
ImageMargins 0 margins around the image of the displayed input field
ImageSize Automatic the overall image size of the displayed input field
  • An InputField of type Expression replaces its contents with the fully evaluated form every time the contents are updated. ContinuousAction has no effect on such an InputField , so that no disorienting replacements happen while typing inputs.
  • The settings for BaseStyle are appended to the default style typically given by the style in the current stylesheet.
(2)
Dynamically update the variable via the InputField :
Restrict the input to a specific type:
Dynamically update the variable via the InputField :
Out[1]=
Restrict the input to a specific type:
Out[1]=
Out[2]=
(2)
Use Tab to move between input fields:
The input field will not be updated if the input is not of the specified type:
(15)
Display InputField without a frame:
Align InputField with text:
Use a named style:
Create an input field that is exactly as tall as its contents:
By default, variables are not continuously updated:
Setting ContinuousAction makes variable updates whenever a change is made to the input:
By default, InputField is enabled:
By setting Enabled ->False , the field is disabled but visible in its current state:
Display a prompt in an empty input field:
Display the field hint in a different color:
Create a password-style input field:
Alter the field width:
Adjust the height and width:
Set a large internal margin for an input field:
Add margins outside the input field:
Set the width of the field:
Set the overall size of the field:
(1)
Plot any function:
(1)
Manipulator is constructed with InputField :
(4)
InputField will remain unevaluated if the expression does not match the type:
Use a cleared Dynamic variable to create an empty input field that only accepts numbers:
Null indicates no value in an input field of style :
The box representation of the symbol Null is the string :
Null in an Expression style input field produces an empty result:
New in 6 | Last modified in 8


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