WPF 后台常用属性值设置

1、字体加粗

Label.FontWeight = FontWeights.Bold;

2、设置16进制颜色值

Label.Background = new SolidColorBrush(Colors.CadetBlue); //背景颜色

Label.Foreground = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#0099FF"));

Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#F0F8FF"));

3、设置字体样式

Label.FontFamily = new FontFamily("华文楷体");

4、Label标签字体居中

Label.HorizontalContentAlignment = HorizontalAlignment.Center; //水平居中

Label.VerticalContentAlignment = VerticalAlignment.Center; //垂直居中

5、TextBox输入框控件，鼠标离开时触发事件

⑴得到焦点：GotFocus="TextBox_GotFocus"

⑵失去焦点：LostFocus="TextBox_LostFocus"

⑶鼠标离开：MouseLeave="TextBox_MouseLeave"

⑷文本框内容发生变化时：TextChanged="TextBox_TextChanged"

6、窗口居中

WindowStartupLocation="CenterScreen"

7、窗体无边框

WindowStyle="None"

8、禁用放大和缩小

ResizeMode="NoResize"

9、设置TextBox输入转换为大写

CharacterCasing="Upper"

10、TextBox边框以及透明度

Opacity="0.8"; BorderThickness="0"

11、委托

this.Dispatcher.BeginInvoke(DispatcherPriority.Background,(Action)(() => { Keyboard.Focus(TextBox); }));

12、只能输入字母

private void textBox1_TextChanged(object sender, EventArgs e)
        {
            if (System.Text.RegularExpressions.Regex.IsMatch("^[a-zA-Z]", textBox1.Text))
            {
                MessageBox.Show("只能输入字母");
                textBox1.Text.Remove(textBox1.Text.Length - 1);
            }
        }

13、引入外部样式

https://www.cnblogs.com/therock/articles/2135997.html

后台代码引入样式

ResourceDictionary dic = new ResourceDictionary()

{ Source = new Uri(@"  pack://application:,,,/Hnt.WMS.Controls;component/CSS/DictionaryCSS.xaml", UriKind.Absolute) };
 button.Style = (System.Windows.Style)dic["CloseButtonStyle"];
               

14、集合和数组的相互转换

https://blog.csdn.net/wenzhi20102321/article/details/72329907/

15、C#判断某元素是否存在数组中

• string[] s1 = new string[3] { "John", "Paul", "Mary" };

• if (s1.Contains("John"))

• Response.Write("fadfadfa");

•  

• 法二：

•  

• int[] ia = {1,2,3};

• int id = Array.IndexOf(ia,value);

•  

• if(id==-1)

• 不存在

• else

• 存在

16、禁止文本框粘贴

<Grid>         <TextBox Text="hello paste" MinWidth="100"                  HorizontalAlignment="Center" VerticalAlignment="Center">             <TextBox.CommandBindings>                    <CommandBinding Command="ApplicationCommands.Paste"                   Executed="CommandBinding_Executed"                   CanExecute="CommandBinding_CanExecute"/>                               TextBox.CommandBindings>         TextBox>     Grid>

        private void CommandBinding_Executed(object sender, ExecutedRoutedEventArgs e)

        {

 

        }

 

        //后台

        private void CommandBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)

        {

            e.Handled = true;

        }

 

 

17.判断字符串中是否存在某个值

Contains

18.DataGrdi表头样式引用

ColumnHeaderStyle="{DynamicResource DataGridHeader1}"

 

19.WPF 下拉框属性

https://wenku.baidu.com/view/b22507c8050876323112129d.html

20.DataGrid中，编辑状态下触发事件

21.获取DataGrid指定行中的值

        ///

        /// 获取ChooseMaterielDataGrid
        /// 中指定某一列的值
        ///

        ///
        ///
        private MaterialInfoDetailed GetChooseMaterielDataGrid(int index)
        {
            DataGridRow rowContainer = (DataGridRow)ChooseMaterielDataGrid.ItemContainerGenerator.ContainerFromIndex(ChooseMaterielDataGrid.SelectedIndex);
            DataGridCellsPresenter presenter = GetVisualChild(rowContainer);
            DataGridCell cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(index);
            GetVisualChild1(cell, false);

            UnSelectOrtherMes(ChooseOrderDataGrid);
            MaterialInfoDetailed mySelectedElement = (MaterialInfoDetailed)ChooseMaterielDataGrid.SelectedItem;
            return mySelectedElement;
        }

22.两个日期差

TimeSpan timeSpan = new TimeSpan(DateTime.Now.Ticks - location.EnterTime.Ticks);
string timeSpans = (int)timeSpan.TotalHours + "小时" + timeSpan.Minutes + "分钟" + timeSpan.Seconds + "秒";

 

23.List集合表达式

UserInfo userInfo = this.UserInfoOC.FirstOrDefault(v => (v.Id == selectItem.Id));

List listLineExceptionInfo = lineExceptionInfoBll.FindAllLineExceptionInfo(nowTask.StartNo, nowTask.EndNo);
                for (int i = 1; i < listLineTask.Count; i++)
                {
                    LineTask nextTask = listLineTask[i];
                    listLineExceptionInfo = listLineExceptionInfo.Where(p =>
                    p.VetoStartNo != nextTask.StartNo & p.VetoEndNo != nextTask.EndNo).ToList();
                }
                int count = listLineExceptionInfo.Where(p =>
                   p.VetoStartNo == startPortCode & p.VetoEndNo == endPortCode).Count();
                if (count > 0)
                {
                    hintMessage.Result = true;
                    hintMessage.Message = string.Empty;
                    return hintMessage;
                }

 

24、WPF自定义光标

Cursor = Cursors.Hand,

WPF中鼠标光标的设置

WPF 中每个光标通过一个System.Windows.Input.Cursor表示，获取Cursor对象的最简单方法是使用Cursor类（位于System.Windows.Input名称空间）的静态属性。

如：

this.Cursor=Cursors.wait;

或

help

但是有一个例外，通过使用ForceCursor属性，父元素会覆盖子元素的光标位置，当把该属性设置为true时，会忽略子元素的Cursor属性，并且父元素的光标会被应用到内部的所有内容。

为了移除应用程序范围的光标覆盖设置，需要将Mouse.OverrideCursor属性设置为null。

WPF支持自定义光标，可以使用普通的.cur光标文件（本质上是一副小位图），也可以使用.ani动画光标文件，为了使用自定义的光标，需要为Cursor对象的构造函数传递光标文件的文件名或包含贯标数据的流。

Cursor cur=new Cursor(Path.Combine(ApplicationDir,"1.ani"));

this.Cursor=cur;