数据对应状态

“数据库：要用的的那张表中要有状态的字段”

.Xaml页面:

.Cs页面：
将Text Block中的命令写到.Cs属性（没有的话自己加就完事了（#region那一套））中：
别忘记+上实例化数据模型
//临时表
DataTable dataTable;
//全局公共静态变量
public static WrapPanel WP;
public static Button BtnPH;
public static Button BtnInsert;
public static UserControl UC;
这是其中的一个，其他两个也是这样的
private string _txtKZ;
public string txt_KZ
{
get { return _txtKZ; }
set
{
if (_txtKZ != value)
{
_txtKZ = value;
RaisePropertyChanged(() => txt_KZ);

      }
}

}
//已付款台数
private string _txtYFK;
public string txt_YFK
{
get { return _txtYFK; }
set
{
if (_txtYFK != value)
{
_txtYFK = value;
RaisePropertyChanged(() => txt_YFK);

            }
        }
    }
    //显示待付款台数
    private string _txtDFK;
    public string txt_DFK
    {
        get { return _txtDFK; }
        set
        {
            if (_txtDFK != value)
            {
                _txtDFK = value;
                RaisePropertyChanged(() => txt_DFK);

            }
        }
    }

然后就是命令层了：
//页面的加载命令？
public RelayCommand LoadedCommand { get; private set; }

函数层：
public void SelectOrder(UserControl uc)
{
UserControl myUC = (UserControl)uc;//传参传递的是用户空间自身
UC = myUC;
DependencyObject parent = VisualTreeHelper.GetParent(myUC);
//获取Button
List btn = FindVisualChildren.FindVisualChildrens(parent);
BtnPH = btn[2];
BtnInsert = btn[2];
//获取WrapPanel
List wp = FindVisualChildren.FindVisualChildrens(parent);
WP = wp[0];
if (WP != null)
{
WP.Children.Clear();
}
//查询餐桌信息
var TableOrder = (from tbType in myModel.R_TableType
orderby tbType.TableTypeName
select tbType).ToList();
dataTable = ListToDataTable.ListToDataTablen(TableOrder);
if(dataTable != null)
{
for (int i = 0; i < dataTable.Rows.Count; i++)
{
//把餐桌添加到WrapPanel
在给餐桌页面传值时，要用到状态数据页面
KaiTaiNeiRong NeiRong = new KaiTaiNeiRong();
WP.Children.Add(NeiRong);
//给餐桌页面传值
int tableTypeID = Convert.ToInt32(dataTable.Rows[i][“TableTypeID”].ToString());
var homeView = (NeiRong.DataContext as OpenContentViewModel);
homeView.TableTypeID = tableTypeID;
homeView.DiningTable += Item_DiningTable;
}
}
//根据餐桌状态
var dd = (from tbTbale in myModel.R_TableType
where tbTbale.Status == “已付款”
select tbTbale).ToList();
if (dd.Count >= 1)
{

            BtnInsert.Opacity = 1;
        }
        else
        {
            BtnInsert.Opacity = 0;
        }
        var KZ = (from tbTable in myModel.R_TableType
                  where tbTable.Status == "空桌"
                  select tbTable).ToList();

        var DFK = (from tbTable in myModel.R_TableType
                   where tbTable.Status == "待付款"
                   select tbTable).ToList();
        txt_KZ = KZ.Count.ToString() + "  台";
        txt_YFK = dd.Count.ToString() + "  台";
        txt_DFK = DFK.Count.ToString() + "  台";

        if (KZ.Count > 0)
        {
            BtnPH.Opacity = 0;
        }
        else
        {
            BtnPH.Opacity = 1;
        }
    }
    //刷新座椅状态
    private void Item_DiningTable()
    {
        SelectOrder(UC);
    }