CFSLIDER |
Description
Puts a slider control, for selecting a numeric value from a range, in a ColdFusion form. The slider moves over the slider groove. As the user moves the slider, the current value displays. Used within a cfform tag.
Category
Forms tags

Syntax

    <cfslider
    name = "name"
       label = "text"
       refreshLabel = "Yes" or "No"
       range = "min_value, max_value"
       scale = "uinteger"
       value = "integer"
       onValidate = "script_name"
       message = "text"
       onError = "text"
       height = "integer"
       width = "integer"
       vSpace = "integer"
       hSpace = "integer"
       align = "alignment"
       tickMarkMajor = "Yes" or "No"
       tickMarkMinor = "Yes" or "No"
       tickMarkImages = "URL1, URL2, URLn"
       tickMarkLabels = "Yes" or "No" or "list"
       lookAndFeel = "motif" or "windows" or "metal"
       vertical = "Yes" or "No"
       bgColor = "color"
       textColor = "color"
       font = "font_name"
       fontSize = "integer"
       italic = "Yes" or "No"
       bold = "Yes" or "No"
       notSupported = "text">

See also
cfapplet, cfinput, cfform, cfselect, cftextinput, cftree, cftreeitem
History
ColdFusion MX: Deprecated the img, imgStyle, and grooveColor attributes. They might not work, and might cause an error, in later releases.
Usage
This tag requires the client to download a Java applet. Using this tag may be slightly slower than using an HTML form element to display the same information.
For this tag to work properly. the browser must be JavaScript-enabled.

If the following conditions are true, a user's selection from query data that populates this tag's options continues to display after the user submits the form:

- The cfform preserveData attribute is set to "Yes"
- The cfform action attribute posts to the same page as the form itself (this is the default), or the action page has a form that contains controls with the same names as corresponding controls on the user entry form

For more information, see the cfform tag entry.

Example

    <!--- This example shows how to use cfslider within cfform --->
    <h3>cfslider Example</h3>
    <p>cfslider, used within a cfform, can provide functionality
       to Java-enabled browsers.
    <p>Try moving the slider back and forth to see the real-time value change.
       Then, submit the form to show how cfslider passes its value on to a new page.
    <cfif isdefined("form.mySlider") is true>
       <h3>You slid to a value of    <cfoutput>#mySlider#</cfoutput></h3>
       Try again!
    </cfif>
    <cfform action = "cfslider.cfm">
       <cfslider name = "mySlider" value = "12"
          label = "Actual Slider Value "
          range = "1,100" align = "BASELINE"
          message = "Slide the bar to get a value between 1 and 100"
          height = "50"       width = "150" font = "Verdana"
          bgColor = "Silver" bold = "No"
          italic = "Yes" refreshLabel = "Yes"> 100
    <p><input type = "Submit" name = "" value = "Show the Result">
    </cfform>

NAME |
| Required
Name of cfslider control.

LABEL |
| Optional
Label to display with control; for example, "Volume" This displays: "Volume %value%" To reference the value, use "%value%". If %% is omitted, slider value displays directly after label.

REFRESHLABEL |
| Optional

Default value: "Yes"

- Yes: when user moves slider, label is refreshed
- No

RANGE |
| Optional
Default value: ""0,100"" Numeric slider range values. Separate values with a comma.

SCALE |
| Optional
Unsigned integer. Defines slider scale, within range. For example, if range = "0,1000" and scale = "100", the display values are:0, 100, 200, 300, ... Signed and unsigned integers in ColdFusion are in the range -2,147,483,648 to 2,147,483,647.

VALUE |
| Optional
Default value: "Minimum in range" Starting slider setting. Must be within the range values.

ONVALIDATE |
| Optional
Custom JavaScript function to validate user input; in this case, a change to the default slider value. Specify only the function name.

MESSAGE |
| Optional
Message text to appear if validation fails.

ONERROR |
| Optional
Custom JavaScript function to execute if validation fails. Specify only the function name.

HEIGHT |
| Optional
Default value: "40" Slider control height, in pixels.

WIDTH |
| Optional
Slider control width, in pixels.

VSPACE |
| Optional
Vertical spacing above and below slider, in pixels.

HSPACE |
| Optional
Horizontal spacing to left and right of slider, in pixels.

ALIGN |
| Optional

Alignment of slider

- top
- left
- bottom
- baseline
- texttop
- absbottom
- middle
- absmiddle
- right

TICKMARKMAJOR |
| Optional

Default value: "No"

- Yes: render major tickmarks in slider scale.
- No: no major tickmarks.

Major tick marks display at intervals specified by scale.

TICKMARKMINOR |
| Optional

Default value: "No"

- Yes: render minor tickmarks in slider scale.
- No: no minor tickmarks

Minor tickmarks display between major tickmarks.

TICKMARKIMAGES |
| Optional
Comma-delimited list of URLs specifying images in slider tickmark scale. If you do not specify enough values, the last value is repeated for remaining tickmarks. If you specify too many values, extra values are ignored.

TICKMARKLABELS |
| Optional

Default value: "No"

- yes: numeric tickmarks based on the value of the range and scale attributes.
- no: prevents label text from displaying
- Comma-delimited list of strings for tickmark labels; for example, "ten, twenty, thirty, forty"

If you do not specify enough values, the last value is repeated for remaining tickmarks. If you specify too many values, extra values are ignored.

LOOKANDFEEL |
| Optional

Default value: "Windows"

- motif: renders slider using Motif style
- windows: renders slider using Windows style
- metal: renders slider using Java Swing style

If platform does not support choice, the tag defaults to the platform's default style.

VERTICAL |
| Optional

Default value: "No"

- Yes: renders slider in browser vertically. You must set width and height attributes; ColdFusion does not automatically swap width and height values.
- No: renders slider horizontally.

BGCOLOR |
| Optional

Background color of slider label.

For a hex value, use the form: bgColor = "##xxxxxx", where x = 0-9 or A-F; use two pound signs or none.

- Any color, in hex format
- black
- red
- blue
- magenta
- cyan
- orange
- darkgray
- pink
- gray
- white
- lightgray
- yellow

TEXTCOLOR |
| Optional
Options: same as for bgcolor attribute

FONT |
| Optional
Font name for label text.

FONTSIZE |
| Optional
Font size for label text, in points.

ITALIC |
| Optional

Default value: "No"

- Yes: italics label text
- No: normal text

BOLD |
| Optional

Default value: "No"

- Yes: bold label text
- No: medium text

NOTSUPPORTED |
| Optional

Text to display if a page that contains a Java applet-based cfform control is opened by a browser that does not support Java or has Java support disabled. For example:

"<b> Browser must support Java to view ColdFusion Java Applets</b>"

Default message:

<b>Browser must support Java to <br>view ColdFusion Java Applets!</b>