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https://issues.apache.org/jira/browse/TAP5-2081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13596852#comment-13596852
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Paul Stanton commented on TAP5-2081:
------------------------------------
Copying the similar implementation from elsewhere in the datefield.js script,
adding the following to the "selectDate" function (just before calling
"sendServerRequest") resolves the issue.
// If the field is blank, don't bother going to the server to parse!
if (value == "") {
resultHandler.call(this, {"formatted":"", "value":""});
return;
}
> datefield: cannot blank out date value via text input
> -----------------------------------------------------
>
> Key: TAP5-2081
> URL: https://issues.apache.org/jira/browse/TAP5-2081
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-core
> Affects Versions: 5.3.6
> Reporter: Paul Stanton
> Labels: datefield
>
> If you select a date via the calendar, and then delete the value in the text
> field an exception is thrown since the server site method "onParse" does not
> accept a blank parameter.
> This should instead avoid going to the server for a parse, and set the
> current value to null.
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