store

问题 I am using Asp.net with C# and back-end MySql to keep Images as byte[] array with using BLOB datatype TABLE : ImageLog ImgID int (auto increment) ImageLogo blob I am using following function to convert image to array... private byte[] ConvertImageToByteArray(FileUpload fuImgToByte) { byte[] ImageByteArray; try { MemoryStream ms = new MemoryStream(fuImgToByte.FileBytes); ImageByteArray = ms.ToArray(); return ImageByteArray; } catch (Exception ex) { return null; } } here is calling method for

问题 I am having trouble using SQLite on Android. I am able to parse a XML file and then create a database to store the content. Creation, insertion works fine. I can see the .db File in the File Explorer My last call to checkDataBase() returns false ?! Why ? I am working on Android 2.3 on en emulator. Am I doing something wrong ? Activity: public class MTGDBActivity extends Activity{ String currentDBPath = "data/data/rudy.jaumain.mtgdb/databases/MTGCards"; MTGContainerData mtgcd; MTGDatabase

问题 I have a stored procedure which reads value from the table and then using update query it appends a prefix in it and update the table. But the issue that I am getting the value in table contains single quote(') so when I use it in update query is not working. How can I escape this single quote by two single quotes? Briefly I want to check...: 1. if single quote exists in the value fetched from table. 2. if yes, then replace single quote with double quote else do nothing How can this be

问题 I am developing a windows store app which downloads a MSI file from a URL. I want to automatically run the MSI installer from C# code. first problem is the windows smart screen - the MSI is not signed event when smart screen is disabled var success = await Windows.System.Launcher.LaunchFileAsync(file); returns false; file = downloaded .msi installer Any ideas? Thanks for any advice. 回答1: It is not possible to launch an MSI (or other executable formats) directly from a Windows Store app. This

问题 I need to check if visitor is first time on website and show block with country choice(stores). Then I need to save visitor choice in cookies(I just think that it is right to save it in cookies). Maybe someone did that and\or can help? Thanks. 回答1: When the user lands on the page check if a cookie is set, if it is then redirect to the store view based on the cookie value. I'm pretty new to magento so there is probably a better way to do this, but i needed something similar myself. I had a

问题 I am working in a function to create an email, but I do not know how to read an "enter" from the user using fgets , in the body part. My code is the following one: void read_email_interactive(Email* email) { printf("Subject: "); fgets(email->subject,DEFAULT_MAX_FIELD,stdin); printf("From: "); fgets(email->from,DEFAULT_MAX_FIELD,stdin); printf("To: "); fgets(email->to,DEFAULT_MAX_FIELD,stdin); printf("Body: "); fgets(email->body,MAX_BODY,stdin); printf("ID: "); fgets(email->id,DEFAULT_MAX

问题 So, continuing working on the redux-based Angular2 app with REST server. In the app I have the following reducers: AuthReducer -> AuthState UserReducer -> UserState UserListReducer -> UserListState ArticleReducer -> ArticleState ArticleListReducer -> ArticleListState The app uses many of those reducers in multiple places (i.e. pages/routes). The app state itself is composed the following way (app routes are in the comments): export interface AppState { localUser: AuthState //homePage with

问题 I am new to Ruby, and I am trying to code a "simple" system, so I can keep track of stock transaction. Calculating the average price, and in the future I will try to get dividends information. So far, my code looks like this (PLEASE feel free to propose better ways to do my code, as I said, I am new). require 'money' require 'money/bank/google_currency' require 'monetize' require 'date' require 'ystock' require 'ostruct' # (optional) # set the seconds after than the current rates are

问题 I'm developing an Eclipse-Plugin which has it's own preference page. I'm storing some data using IPersistentPreferenceStore, but would like to remove / clear this data upon uninstall of my plugin. Otherwise, whenever I re-install the plugin, I get the old data loaded again from previous installations. So far I was not successful in finding any hooks / events for eclipse plugin uninstall to notify my plugin. Does anyone have an idea? 回答1: A way is that your plug-in explicitly registers a

问题 I use NSUserDefaults to save a switch on/off and so far it is good. It remembers the switch position in next session. Now to the thing which I do not understand. I use the same switch (with the same name)in another view, let´s say a flip view which is pushed in from the first view. If I change the switch in the first view it is automatically changed in the flip view. But the other way round, if I change it in the flip view it is not changed in the first view when I go back. Only if I restart