• wpf中遍历界面控件的方法


      /// <summary>
            /// 遍历界面中的所有控件
            /// </summary>
            /// <param name="uiControls"></param>
            private void SetNotEditable(UIElementCollection uiControls)
            {
                foreach (UIElement element in uiControls)
                {
                    if (element is TextBox)
                    {
                        (element as TextBox).IsEnabled = false;
                    }
                    else if (element is ListBox)
                    {
                        if ((element as ListBox).Items.Count > 0)
                        {
                            (element as ListBox).ScrollIntoView((element as ListBox).Items[(element as ListBox).Items.Count - 1]);
                        }
                    }
                    else if (element is Grid)
                    {
                        this.SetNotEditable((element as Grid).Children);
                    }
                    else if (element is Expander)
                    {
                        if ((element as Expander).Content is StackPanel)
                        {
                            StackPanel sa = (element as Expander).Content as StackPanel;
                            this.SetNotEditable(sa.Children);
                        }
                        else if ((element as Expander).Content is Grid)
                        {
                            Grid sa = (element as Expander).Content as Grid;
                            this.SetNotEditable(sa.Children);
                        }
                    }
                    else if (element is StackPanel)
                    {
                        this.SetNotEditable((element as StackPanel).Children);
                    }
                    else if (element is ScrollViewer)
                    {
                        StackPanel sp = (element as ScrollViewer).Content as StackPanel;
                        this.SetNotEditable(sp.Children);

                        //ScrollViewer不具有Children属性,无法对其进行遍历,但是具有Content属性,作为容器型控件,一般都可以通过这样的方法来解决。
                    }
                    else if (element is TabControl)
                    {
                        SetTabControl(element as TabControl);
                    }
                }
            }


            //遍历TabControl TabControl下面可能还会有grid 这时还需要调用上面的方法
            private void SetTabControl(TabControl uiControls)
            {
                //遍历TabControl
                var temp = uiControls.Items;
                //var temp = this.tabControl1.Items;
                foreach (TabItem item in temp)
                {
                    if (item.Content is Button)
                    {
                        //MessageBox.Show((item.Content as Button).Content.ToString());
                    }
                    else if (item.Content is TextBox)
                    {
                        (item.Content as TextBox).IsEnabled = false;
                    }
                    else if (item.Content is ComboBox)
                    {
                        (item.Content as ComboBox).IsEnabled = false;
                    }
                    else if (item.Content is Grid)
                    {
                        //若TabControl中嵌套grid
                        this.SetNotEditable((item.Content as Grid).Children);
                    }
                }
            }

    //方法调用

     SetNotEditable(mygrid.Children);

  • 相关阅读:
    json数据在前端(javascript)和后端(php)转换
    几个提高效率的PHOTOSHOP秘密快捷键
    移动端ios针对input虚拟键盘挡住的问题
    前端适配移动端的方法
    完美兼容IE10以下所有版本
    vscode vue文件格式化没效果
    官网顶部的标题左移动
    模拟后台一次性返回所有数据
    关于上传图片的问题
    iframe标签在PC端的使用
  • 原文地址:https://www.cnblogs.com/guiqiang/p/4632654.html
Copyright © 2020-2023  润新知