可以说我有3个或更多滑块和每个滑块可以具有从值0到100 但是我想,所有滑块值的总和是< = 100。在情况下,我有4对滑块每个人的最大值将是25如何阻止wpf UI以避免非法状态?
每个滑块都绑定到双变量,每次用户使用滑块(节拍频率0.1)时,我计算总和并设置其他滑块,或者根据需要设置相同的滑块,以使总和为< = 100。
的问题是,该计算需要的时间体面量并在此期间用户可以设置非法值。我想通过阻止UI直到计算结束来解决这个问题。基本上与理想的响应性相反。
其他意见和建议,解决了滑盖的事情是值得欢迎的。
滑块结合
public BindingList<WLCToolParameter> WLCParameter
{
get { return _toolParameter; }
set { _toolParameter = value; }
}
应该是瞬间 - 不是真的:(
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using MCDA.Entity;
using MCDA.Extensions;
namespace MCDA.Model
{
class ProportionalDistributionStrategy : IWeightDistributionStrategy
{
public void Distribute<T>(IList<T> listOfToolParameter) where T : class, IToolParameter
{
if (listOfToolParameter.Count == 0)
return;
IToolParameter lastWeightChangedToolParameter = lastWeightChangedToolParameter = listOfToolParameter[0].LastWeightChangedToolParameter;
double sumOfAllWeights = listOfToolParameter.Sum(t =>t.Weight);
//we have to rescale
if (sumOfAllWeights > 100)
{
double overrun = sumOfAllWeights - 100;
//how much do we have without the locked and the last changed?
double availableSpace = listOfToolParameter.Where(t => t.IsLocked == false && t != lastWeightChangedToolParameter).Sum(t => t.Weight);
//we have enough by taking from the non locked
if (availableSpace > overrun)
{
//lets remove proportional
double sumOfChangeableWeights = listOfToolParameter.Where(t => t.IsLocked == false && t != lastWeightChangedToolParameter).Sum(t => t.Weight);
//in case we have only one element that is suitable we can directly remove all from this one
if (listOfToolParameter.Where(t => t.IsLocked == false && t.Weight > 0 && t != lastWeightChangedToolParameter).Count() == 1)
{
listOfToolParameter.Where(t => t.IsLocked == false && t.Weight > 0 && t != lastWeightChangedToolParameter).ForEach(t => t.Weight = t.Weight - overrun);
return;
}
listOfToolParameter.Where(t => t.IsLocked == false && t.Weight > 0 && t != lastWeightChangedToolParameter).ForEach(t => t.Weight = t.Weight - (sumOfChangeableWeights/(sumOfChangeableWeights - t.Weight)) * overrun);
}
//we have to resize also the latest change, but we try to keep as much as possible of the latest change
else
{
//lets set them to zero
listOfToolParameter.Where(t => t.IsLocked == false && t != lastWeightChangedToolParameter).ForEach(t => t.Weight = 0);
//how much are we still over?
double stillOver = listOfToolParameter.Sum(t => t.Weight) - 100;
//and cut from the last changed
listOfToolParameter.Where(t => t == lastWeightChangedToolParameter).ForEach(t => t.Weight -= stillOver);
}
}
}
}
}
你是一个整数绑定到一个滑盖的0.1蜱? – databyss
我的错误当然是双重的。 – steffan
假设滑块处于面板,设置在面板为禁用在你的计算开始和结束时重新启用。 – databyss