问题描述
我正在使用 VS 和 C# 使用 Xamarin, 我正在尝试获取对 XAML 文件中的微调器的引用,但 C# 根本无法识别微调器类,是否有任何包或任何方法可以更改它?
# Variables
x = model.addVars(nodeCount,nodeCount,vtype=g.GRB.BINARY) # matrix of size nodeCount * nodeCount,where x[i,j] denotes if node i is topologically before node j
#Constraints
for e in edges:
model.addConstr(x[e.child,e.parent] == 1 - x[e.parent,e.child]) # x[i,j] needs to be equal to negative value of x[j,i]
for k in range(nodeCount):
model.addConstr( x[e.parent,e.child] + x[e.child,k] - x[e.parent,k] <= 1) # Without this constraint solver produced invalid ordering results so I came up with this equation. But I'm not sure if this is the best way to solve this issue..
# Objective
sumNegativeEdges = 0;
for e in edges:
sumNegativeEdges+= (x[e.child,e.parent]) * e.weight; # Adding just weight of edges where child is topologically before the parent
model.setobjective(sumNegativeEdges,g.GRB.MINIMIZE)
c# 代码
<Spinner
android:id="@+id/ingSpr"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_column="0"
android:layout_row="0"/>
Spinner spinner = FindViewById<Spinner>(Resource.Id.ingSpr);