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WPF MVVM框架下,VM界面写控件

MVVM正常就是在View页面写样式,ViewModel页面写逻辑,但是有的时候纯在View页面写样式并不能满足需求。我最近的这个项目就遇到了,因此只能在VM页面去写样式控件,然后绑定到View页面。

先看图

各种税是需要变动的,当然,并不是由于这个原因才在VM页面写样式,而是因为不同的税是红色,相应的【】是黑色。

在Textblock里用Run属性来进行变量添加,而要给Run添加颜色时又是统一的,因此只能用三个Run来分别来设置“【”,“税种”,“】”,但是前台又没有办法进行解析,因此只能用VM页面进行书写样式。

字段

        private TextBlock textBlock;

        public TextBlock TextBlock
        {
            get { return textBlock; }
            set { textBlock = value;
            RaisePropertyChanged("TextBlock");
            }
        }

VM下的Textblock样式

TextBlock textblock = new TextBlock();
textblock.TextWrapping = TextWrapping.Wrap;
textblock.HorizontalAlignment = HorizontalAlignment.Center;
textblock.Margin = new Thickness(20, 0, 20, 0);
textblock.FontSize = 30;
textblock.HorizontalAlignment = HorizontalAlignment.Left;
textblock.VerticalAlignment = VerticalAlignment.Top;

BrushConverter brushConverter = new BrushConverter();
Brush Blackbrush = (Brush)brushConverter.ConvertFromString("#2c2c2c");
Brush Redbrush = (Brush)brushConverter.ConvertFromString("#a80301");

textblock.Foreground = Blackbrush;
textblock.Inlines.Add(new Run() { Text = "       ", Foreground = Brushes.Red });
textblock.Inlines.Add("您本月有");
for (int i = 0; i < Mess.Count; i++)
{
    textblock.Inlines.Add(new Run() { Text = "", Foreground = Blackbrush });
    textblock.Inlines.Add(new Run { Text = Mess[i].ToString(), Foreground = Redbrush });
    textblock.Inlines.Add(new Run() { Text = "", Foreground = Blackbrush });
}
textblock.Inlines.Add("税(费)种尚未申报,请在征期内申报。");

TextBlock = textblock;

XAML页面写个ScrollViewer接收一下就可以了

 <ScrollViewer Content="{Binding TextBlock}" HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto"/>

 

posted @ 2015-08-06 10:52  眾尋  阅读(2429)  评论(0编辑  收藏  举报