As the name suggests the measuredWidth/height is used during measuring and layoutting phase. Let me give an example, A widget is asked to measure itself, The widget says that it wants to be 200px by 200px. This is measuredWidth/height. During the layout phase, i.e. in onLayout method. The method can use the measuredWidth/height of its … Read more
A view represents a virtual table. You can join multiple tables in a view and use the view to present the data as if the data were coming from a single table. A stored procedure uses parameters to do a function… whether it is updating and inserting data, or returning single values or data sets. … Read more
A table contains data, a view is just a SELECT statement which has been saved in the database (more or less, depending on your database). The advantage of a view is that it can join data from several tables thus creating a new view of it. Say you have a database with salaries and you … Read more
Kept having to return here to look up pg_get_viewdef (how to remember that!!), so searched for a more memorable command… and got it: \d+ viewname You can see similar sorts of commands by typing \? at the pgsql command line. Bonus tip: The emacs command sql-postgres makes pgsql a lot more pleasant (edit, copy, paste, … Read more
Using view parameters is the most proper way for your case. You don’t really need to perform a REDIRECT, but a plain GET request: <h:button value=”Go to details” outcome=”carDetails”> <f:param name=”carId” value=”#{currentCar.id}” /> </h:button> This will point you to this address: carDetails.xhtml?carId=1 After that, in your carDetails.xhtml page, grab the view param and load the … Read more
Consider the case when model validation fails. View will be redisplayed again with model sent with the request. However this line: new SelectList(ViewBag.Districts, “district_id”, “district_name”, Model.Districts) will have null as a first parameter, since ViewBag.Districts was not repopulated, causing the exception. So in order to avoid exception just set this property again: // If we … Read more
We can add a disabled primary key constraint to a view. That is, the constraint does not fire if an insert or update is run against the view. The database expects integrity to be maintained through constraints on the underlying tables. So the constraint exists solely for the purposes of documentation. SQL> create view emp_view … Read more
Try this <?xml version=”1.0″ encoding=”utf-8″?> <ScrollView xmlns:android=”http://schemas.android.com/apk/res/android” android:layout_width=”fill_parent” android:layout_height=”wrap_content”> <HorizontalScrollView xmlns:android=”http://schemas.android.com/apk/res/android” android:layout_width=”wrap_content” android:layout_height=”fill_parent”> <TableLayout android:id=”@+id/amortization” android:layout_width=”wrap_content” android:layout_height=”wrap_content”> <TableRow android:background=”#ffff00″> <TextView android:text=”@string/amortization_1″ android:padding=”3dip”/> <TextView android:text=”@string/amortization_2″ android:padding=”3dip”/> <TextView android:text=”@string/amortization_3″ android:padding=”3dip”/> <TextView android:text=”@string/amortization_4″ android:padding=”3dip”/> <TextView android:text=”@string/amortization_5″ android:padding=”3dip”/> <TextView android:text=”@string/amortization_6″ android:padding=”3dip”/> <TextView android:text=”@string/amortization_7″ android:padding=”3dip”/> </TableRow> </TableLayout> </HorizontalScrollView> </ScrollView>
So I ended up doing it myself with some help from this answer. If it had been Android 3.0, I could have used property animation, but it’s not so I had to do that myself. Here is what I ended up with: import android.view.View; import android.view.animation.Animation; import android.view.animation.Transformation; /** * Class for handling collapse and … Read more
Just specifying DataTemplates in the Resources with the respective DataType is enough, e.g. <ListView ItemsSource=”{Binding Data}”> <ListView.Resources> <!– Do NOT set the x:Key –> <DataTemplate DataType=”{x:Type local:Employee}”> <TextBlock Text=”{Binding Name}” Foreground=”Blue”/> </DataTemplate> <DataTemplate DataType=”{x:Type local:Machine}”> <TextBlock Text=”{Binding Model}” Foreground=”Red”/> </DataTemplate> </ListView.Resources> </ListView> (Note that DataTemplate.DataType can also be used for implicit XML data templating (see … Read more