readonly

问题 This is a bit tricky because Heroku uses a Read-only Filesystem across their Dyno Grid. Which means when trying to install ckeditor remotely, I get an error : heroku rake db:migrate rake aborted! Read-only file system - /disk1/home/slugs/362142_8858805_b85c-f2f3955d-f087-4bc4-8b1b-b6e898403a10/mnt/public/javascripts/ckcustom.js ckcustom.js is a config file to manage your meta settings for ckeditor. I was wondering if anyone else had these troubles, and what they did to get around them? 回答1:

问题 I've a textbox with readonly="readonly" that means I can not edit it. But what I want is to make this textbox editable when user double clicks on it. What I've tried yet is: <input size="10" readonly="readonly" ondblclick="setEditable(this)"/> and in JavaScript: function setEditable(i){ i.readonly = false; } But this does not worked. So how can I make a textbox editable, which is readonly, when user double clicks on it? 回答1: Update: To make it readonly again: var el = document.getElementById(

问题 I have a GridView with two CheckBoxField columns. They both have ReadOnly property set to false, but html code generated for them has attribute disabled="disabled". So the value cannot be changed. Generated HTML example: <span disabled="disabled"><input id="ctl00_ContentBody_GridView_ctl02_ctl01" type="checkbox" name="ctl00$ContentBody$GridView$ctl02$ctl01" checked="checked" disabled="disabled" /></span> Can anybody say how to figure it out? 回答1: This is by design; rows in a GridView are not

问题 I have a GridView with two CheckBoxField columns. They both have ReadOnly property set to false, but html code generated for them has attribute disabled="disabled". So the value cannot be changed. Generated HTML example: <span disabled="disabled"><input id="ctl00_ContentBody_GridView_ctl02_ctl01" type="checkbox" name="ctl00$ContentBody$GridView$ctl02$ctl01" checked="checked" disabled="disabled" /></span> Can anybody say how to figure it out? 回答1: This is by design; rows in a GridView are not

问题 We have a Java application with a particular module that checks if a temporary directory is 'writable' before executing its function. To test this, we have a JUnit test that creates a new directory, uses the Java File class method setWritable(false) to make the directory "not writable", then passes that directory to the module being tested and expects to get an IllegalArgumentException back. This had all been working fine for a long time under JDK 6u18. Today I have updated the JDK version to

问题 Today I found an article where a const field is called compile-time constant while a readonly field is called runtime constant . The two phrases come from 《Effective C#》. I searched in MSDN and the language spec, find nothing about runtime constant . No offensive but I don't think runtime constant is a proper phrase. private readonly string foo = "bar"; creates a variable named "foo", whose value is "bar", and the value is readonly, here it is a variable, no business on constant . A readonly

问题 I'm trying to figure out how to map against a simple read-only property and have that property fire when I save to the database. A contrived example should make this more clear. First, a simple table: meta = MetaData() foo_table = Table('foo', meta, Column('id', String(3), primary_key=True), Column('description', String(64), nullable=False), Column('calculated_value', Integer, nullable=False), ) What I want to do is set up a class with a read-only property that will insert into the calculated

问题 I'm looking for the C# equivalent of Java's final . Does it exist? Does C# have anything like the following: public Foo(final int bar); In the above example, bar is a read only variable and cannot be changed by Foo() . Is there any way to do this in C#? For instance, maybe I have a long method that will be working with x , y , and z coordinates of some object (ints). I want to be absolutely certain that the function doesn't alter these values in any way, thereby corrupting the data. Thus, I

问题 With the release of jQuery 1.6, the recommendation on SO has been to generally start using prop() where you used to use attr(). What happens when I want make an element readonly? $('.control').prop('readonly', 'readonly'); $('.control').prop('readonly', true); Neither of these seem to make the control readonly. Is making an element readonly the exception to the rule? 回答1: The problem is that the property name is case-sensitive. Try: $('.control').prop('readOnly', true); Though really I don't

问题 I would like to have some Magento product attributes that are not editable from the admin interface and some that are not visible at all in that interface (as a method of storing some persistent information about a product that should not be viewed by human users.. it's the only way of doing this that i can think of, any other suggestions are welcome). So my question is: Do all Magento attributes have to be visible and editable from the admin interface? If not, how can they be made read-only