binding

问题 Importing a shared library (.so) doesn't seem to be an easy task. I tried to follow the instructions in this post, but I really can't get it to work. Building without the library RF24 is working. Followed their build instructions which produced the following filesets in the /usr/local/lib folder librf24-bcm.so librf24.so librf24.so.1 librf24.so.1.3 librf24.so.1.3.1 node_modules python2.7 python3.5 In my .cpp file I include the library like this #include <RF24.h> // also tested "" instead of <

问题 Importing a shared library (.so) doesn't seem to be an easy task. I tried to follow the instructions in this post, but I really can't get it to work. Building without the library RF24 is working. Followed their build instructions which produced the following filesets in the /usr/local/lib folder librf24-bcm.so librf24.so librf24.so.1 librf24.so.1.3 librf24.so.1.3.1 node_modules python2.7 python3.5 In my .cpp file I include the library like this #include <RF24.h> // also tested "" instead of <

问题 I am using SQLALchemy to execute queries on Teradata. One of the queries I execute is a DDL statement to replace a stored procedure: REPLACE PROCEDURE DEV_MIGRATION_TOOL.UNIT_TEST_NEW_STORED_PROCEDURE() UNIT_TEST_NEW_STORED_PROCEDURE: BEGIN DECLARE V_VAR VARCHAR(50); SELECT 'Hello World!' INTO :V_VAR; END; This SQL statement is assigned to a variable query and is executed by SQLALchemy with the session execute method: def execute_sql_statement(self, query): """Generic method to execute a SQL

问题 I am using MVVM and am displaying two listboxes on one window. I am binding from both of those listboxes simultaneously to different fields call them A and B. A and B are then both modifying C. To make this work, I want to only have one item from the two listboxes IsSelected at once, so that A does not override C when B IsSelected. How can I restrict this? 回答1: I can think of a couple of ways to do this. One way is you could bind the ListBox.SelectedIndex of your 2 ListBoxes to change

问题 I am having some issue in calling a function using named parameters. This is the declaration of the function in a separate file (Security.ps1): function Add-SSRSItemSecurity ( [Parameter(Position=0,Mandatory=$false)] [Alias("SSRSrange")] [string]$range,[Parameter(Position=1,Mandatory=$false)] [Alias("path")] [string]$itemPath, [Parameter(Position=2,Mandatory=$false)] [Alias("grp")] [string]$groupUserName, [Parameter(Position=3,Mandatory=$false)] [Alias("SSRSrole")] [string]$role, [Parameter

问题 What is the Dependency property in WPF and Silverlight. Why we required and where we can use it. Thanks... 回答1: From the documentation: The purpose of dependency properties is to provide a way to compute the value of a property based on the value of other inputs. These other inputs might include system properties such as themes and user preference, just-in-time property determination mechanisms such as data binding and animations/storyboards, multiple-use templates such as resources and

问题 I have a DataGrid which contains some Product details , i need to load the product details into some textboxes when i double click on a particular product in the datagrid. Thanks in advance. 回答1: Welcome to StackOverflow! Usually people won't answer questions without the following. A clear summary of what you're attempting to do. All of the relevant code Any exceptions that you are experiencing All of the research links you used in order to get where you are That said, I will give you a demo

问题 this is my second go at this, I've written a server application as below which outputs whatever the client sends. I have one server.exe version where it listens to anything using INADDR_ANY , Having done that I can use my client and connect to the server if I specify the client connect to localhost (Which all works fine). but if I use my own IP address instead of localhost for the client, I cannot connect to the server?. Shouldn't I be able to connect to the server this way?. I used another

问题 I am trying to create a validation rule for a given control (in this scenario, it is the TextBox). I am not able to obtain a successful Binding to the property of an object, although appropriate steps were taken: ValidationRule and DepedencyProperty are taken advantage of. Kindly find code below. A side note is that "Is Required" in the custom Validation class is always False, unless I explicitly set the value in the XAML (no Binding, as per "Is Ranged" parameter). Any tips and suggestions

问题 Please help my last step. Thanks. I'm testing binding iOS native framework to Xamarin library. I created iOS framework and added MyView.h, MyView.m MyView.m (instancetype)initWithFrame:(CGRect)frame { id p = [super initWithFrame:frame]; self.backgroundColor = [UIColor greenColor]; return p; } MyView.h @interface MyView : UIView @end very simple framework. add that MyView.h into Public Header and Made universal framework for any architecture. This framework now has firstfile.h, MyView.h two