readonly

问题 I am using the following code to read data from Sheet1 of SAME Excel sheet. I load the data into the return array. The Excel sheet file has "read only" checked and is always opened in "READ ONLY" mode. The issue is that if I change any of the data on Sheet1, because the file is opened as "read only", it won't be reflected in the ADO query. ADO Continues to output what is in the "saved" file and ignores what has been updated in the temp read only version. For example the below pulls value

问题 I need to initialize private readonly field after Deserialization. I have folowing DataContract: [DataContract] public class Item { public Item() { // Constructor not called at Deserialization // because of FormatterServices.GetUninitializedObject is used // so field will not be initialized by constructor at Deserialization _privateReadonlyField = new object(); } // Initialization will not be called at Deserialization (same reason as for constructor) private readonly object

问题 Is there a simple way to create an immutable NumPy array? If one has to derive a class from ndarray to do this, what's the minimum set of methods that one has to override to achieve immutability? 回答1: You can make a numpy array unwriteable: a = np.arange(10) a.flags.writeable = False a[0] = 1 # Gives: RuntimeError: array is not writeable Also see the discussion in this thread: http://mail.scipy.org/pipermail/numpy-discussion/2008-December/039274.html and the documentation: http://docs.scipy

问题 I have an Excel Workbook ("test.xlsx") that has a cell named "gv_epxsize". My goal is to open the excel workbook and write down the string "101" in the cell with the name "gv_epxsize". The problem is that my code keeps making the file Read Only, so it will not write the string "101" to the named cell. I keep receiving a windows prompt that I already have the file open with Windows privileges and asks if I want to open a Read Only copy. The problem is that I don't have the file open, and there

问题 I have multiple ckeditor in a component and for some reason i want a textarea-ckeditor to be readonly with some toolbar enabled; ie: 'print','preview','find', and 'maximize'. How can i achieve this? i've tried removing the plugins but only success if i alter the config.js which will 'standardize' all my ckeditor. What i can think is that i need to alter something from this code. CKEDITOR.replace('header',{ width: '100%', height: 570}); Thanks in adv.. 回答1: I found the solution but instead of

问题 How can i make a text box readonly when a button is clicked using JavaScript? I have tried different scripts like: document.getElementById("text").readonly="on"; but since readonly is a Boolean i don't think it works. Would i use document.getElementById or something else? Can i make all of the text-boxes in a form readonly using one script or would i need a separate script for each text-box? Could this be done using CSS? Thank you! 回答1: document.getElementById("text").readonly='readonly';

问题 this might be a stupid question public class File { public Metadata metadata { get { return _metadata; } } private readonly Metadata _metadata; #region public File () { ... } Foo () { ... } #endregion } Now I am wondering whether I need to write unit tests to verify the case that the _metadata is readonly, and how 回答1: No, you don't generally need to write tests for things which are declared to and checked by the compiler. For example, you don't generally write tests that you can only call

问题 We have an issue with the field readonly behaviour in Orbeon Forms. We usually write conditions in the bind definitions to tell when a field should be readonly, so when the condition is met, the field on the form(HTML browser) will not be editable. However, in the HTML Page source of the field we see that the field holds up the property disabled="disabled" but not readonly="readonly". Because of the property disabled="disabled" the data in the input field will be shown in grey color( IE

问题 According to this Wikipedia article on Google App Engine: Developers have read-only access to the filesystem on App Engine. I have heard of App Engine apps that allow uploads and Google also sells additional storage - if so, wouldn't this statement appear to be incorrect? 回答1: No. Those apps would likely store the uploaded data into the store directly rather than the filesystem. The additional storage is not necessarily in the filesystem but in the storage itself. From this Google App Engine

问题 I've come across some strange behavior of RichTextBox . I want it to be readonly , but then it doesn't display images when I use richTextBox.LoadFile(path) method to load .rtf file. When it's not readonly the file is loaded correctly and the images are displayed. I am using Windows Forms. Can I make it up somehow or is it another RTB bug? For now, as a workaround I am using a label to move focus to it while my RTB got focus, but I don't really like this one. 回答1: you can create a custom