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The set of validation rules that should be generated is based on the formName attribute passed in, which should match the name attribute of the form element in the xml file. The dynamicJavascript and staticJavascript attributes default to true, but if dynamicJavascript is set to true and staticJavascript is set to false then only the dynamic JavaScript will be rendered. If dynamicJavascript is set to false and staticJavascript is set to true then only the static JavaScript will be rendered which can then be put in separate JSP page so the browser can cache the static JavaScript.

The content displayed for this hyperlink will be taken from the body of this tag. The base URL for this hyperlink is calculated based on which of the following attributes you specify you must specify exactly one of them :forward - Use the value of this attribute as the name of a global ActionForward to be looked up, and use the module-relative or context-relative URI found there.

If the forward is module-relative then it must point to an action and NOT to a page. Displays a set of messages prepared by a business logic component and stored as an ActionMessages object, ActionErrors object, a String, or a String array in any scope. In order to use this tag successfully, you must have defined an application scope MessageResources bean under the default attribute name. This element is useful when you have large numbers of checkboxes, and prefer to combine the values into a single array-valued property instead of multiple boolean properties.

WARNING: In order to correctly recognize cases where none of the associated checkboxes are selected, the ActionForm bean associated with this form must include a statement setting the corresponding array to zero length in the reset method. The value to be returned to the server, if this checkbox is selected, must be defined by one of the following methods:Specify a value attribute, whose contents will be used literally as the value to be returned.

Specify no value attribute, and the nested body content of this tag will be used as the value to be returned. The text displayed to the user comes from either the body of this tag, or from a message string looked up based on the bundle, locale, and key attributes. If the value of the corresponding bean property matches the specified value, this option will be marked selected. This tag operates in one of two major modes, depending on whether or not the collection attribute is specified.

If the collection attribute is included, the following rules apply:The collection attribute is interpreted as the name of a JSP bean, in some scope, that itself represents a collection of individual beans, one per option value to be rendered.

The property attribute is interpreted as the name of a property of the individual beans included in the collection, and is used to retrieve the value that will be returned to the server if this option is selected.

The labelProperty attribute is interpreted as the name of a property of the individual beans included in the collection, and is used to retrieve the label that will be displayed to the user for this option. If the labelProperty attribute is not specified, the property named by the property attribute will be used to select both the value returned to the server and the label displayed to the user for this option.

If the collection attribute is not specified, the rules described in the remainder of this section apply. The collection of values actually selected depends on the presence or absence of the name and property attributes. The following combinations are allowed:Only name is specified - The value of this attribute is the name of a JSP bean in some scope that is the collection.

Only property is specified - The value of this attribute is the name of a property of the ActionForm bean associated with our form, which will return the collection. Both name and property are specified - The value of the name attribute identifies a JSP bean in some scope. The value of the property attribute is the name of some property of that bean which will return the collection.

The collection of labels displayed to the user can be the same as the option values themselves, or can be different, depending on the presence or absence of the labelName and labelProperty attributes. If this feature is used, the collection of labels must contain the same number of elements as the corresponding collection of values.

The following combinations are allowed:Neither labelName nor labelProperty is specified - The labels will be the same as the option values themselves. For example:. FormFile property to null in the reset method. Comma-delimited set of content types that the server you submit to. This list can be used by the client browser. If not specified, no content type list will be sent.

Maximum number of input characters to accept. This is ignored. Size of the file selection box to be displayed. This means that your users will have to re-select any previously. Opera web browser will. Value to which this field should be initialized. Define An Input Form. The form implicitly interacts. The form bean is located, and created if necessary, based on the. If a value is not. The list of character encodings for input data that the server should. The content encoding to be used to submit this form, if the method.

If not specified, the browser. The field name among the fields on this form to which initial. If the focus field is a field array, such as a radio button group, you can. The HTTP method that will be used to submit this request. JavaScript event handler executed if the form is reset. JavaScript event handler executed if the form is submitted. The default is true but this property is ignored. Window target to which this form is submitted, such as. URL rewriting will be. URI found there.

URI by including the context path and application. To specify the corresponding value, use one of the. The named JSP bean optionally scoped by the value of. The value associated with each key must be either. If a String array is specified, more than one value for the. You can also request that an anchor " xxx" be added to the. This hyperlink may be dynamically. This hyperlink may be dynamically modified. This description. The corresponding value is. The JSP bean. If not specified, all. Render A Hidden Field.

The attribute name of the bean whose properties are consulted. If not. Name of this input field, and the name of the corresponding bean. Plus one for complete answer. Daniel F. Thornton Daniel F. Thornton 3, 2 2 gold badges 26 26 silver badges 41 41 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Explaining the semiconductor shortage, and how it might end.

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