[T5]How to submit a hidden value?

[Donyee]

I need to submit a hidden value, so i write like this:(copy from this TextField)

public class HiddenField extends AbstractTextField {
@Override
protected final void writeFieldTag(MarkupWriter writer, String value) {
writer.element(input, type, hidden, name, getElementName(), 
id,
getClientId(), value, value);
}

final void afterRender(MarkupWriter writer) {
writer.end(); // input
}

}
but it doesn't works!
Can anyone help??


徐 依伟

Re: [T5]How to submit a hidden value?

[Nick Westgate]

Sure. It should be pretty simple. First, please define doesn't work.
Does anything get written into the html?

Also, you probably want to extend AbstractField, not AbstractTextField.

Cheers,
Nick.


Donyee wrote:
I need to submit a hidden value, so i write like this:(copy from this 
TextField)


public class HiddenField extends AbstractTextField {
@Override
protected final void writeFieldTag(MarkupWriter writer, String value) {
writer.element(input, type, hidden, name, 
getElementName(), id,

getClientId(), value, value);
}

final void afterRender(MarkupWriter writer) {
writer.end(); // input
}

}
but it doesn't works!
Can anyone help??


徐 依伟


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Re: [T5]How to submit a hidden value?

[Donyee]

The new code works fine!

public class HiddenField extends AbstractField {
@Parameter(required = true, principal = true)
private String _value;

@Inject
private Request _request;

final void afterRender(MarkupWriter writer) {
writer.end(); // input
}

@Override
protected void processSubmission(FormSupport formSupport, String 
elementName) {
// TODO Auto-generated method stub

_value = _request.getParameter(elementName);
}

void beginRender(MarkupWriter writer) {
writer.element(input, type, hidden, name, 
getElementName(),
id, getClientId(), value,);
}


}

2007/7/19, Nick Westgate [EMAIL PROTECTED]:

Sure. It should be pretty simple. First, please define doesn't work.
Does anything get written into the html?

Also, you probably want to extend AbstractField, not AbstractTextField.

Cheers,
Nick.


Donyee wrote:
 I need to submit a hidden value, so i write like this:(copy from this
 TextField)

 public class HiddenField extends AbstractTextField {
 @Override
 protected final void writeFieldTag(MarkupWriter writer, String value) {
 writer.element(input, type, hidden, name,
 getElementName(), id,
 getClientId(), value, value);
 }

 final void afterRender(MarkupWriter writer) {
 writer.end(); // input
 }

 }
 but it doesn't works!
 Can anyone help??


 徐 依伟

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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]





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徐 依伟

Re: [T5]How to submit a hidden value?

[Nick Westgate]

Yeah, well done. Writing components in Tapestry is so easy and fun. :-)

You can probably delete the _request and have an empty processSubmission() too.

Cheers,
Nick.


Donyee wrote:

The new code works fine!

public class HiddenField extends AbstractField {
@Parameter(required = true, principal = true)
private String _value;

@Inject
private Request _request;

final void afterRender(MarkupWriter writer) {
writer.end(); // input
}

@Override
protected void processSubmission(FormSupport formSupport, String 
elementName) {

// TODO Auto-generated method stub

_value = _request.getParameter(elementName);
}

void beginRender(MarkupWriter writer) {
writer.element(input, type, hidden, name, getElementName(),
id, getClientId(), value,);
}


}


2007/7/19, Nick Westgate [EMAIL PROTECTED]:

Sure. It should be pretty simple. First, please define doesn't work.
Does anything get written into the html?

Also, you probably want to extend AbstractField, not AbstractTextField.

Cheers,
Nick.


Donyee wrote:
 I need to submit a hidden value, so i write like this:(copy from this
 TextField)

 public class HiddenField extends AbstractTextField {
 @Override
 protected final void writeFieldTag(MarkupWriter writer, String 
value) {

 writer.element(input, type, hidden, name,
 getElementName(), id,
 getClientId(), value, value);
 }

 final void afterRender(MarkupWriter writer) {
 writer.end(); // input
 }

 }
 but it doesn't works!
 Can anyone help??


 徐 依伟

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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]







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