需求:根据关键字(参会人号码或名称)查找参会人,在datagird 中高亮显示
界面:我在界面上增加了一个文本框和按钮,进行查找操作
操作说明:
根据关键字进行搜索:输入关键字 点击查找,如果找到 以蓝色背景显示整行数据(坑爹的项目经理非让用这个颜色,一点都不好看),找不到进行提示;继续点击查找 寻找下一个匹配项
上代码:
声明了三个变量,next 存储下一个匹配项,list 存储所有匹配项,color 为行背景色
ConfMemberModel next = null; List<ConfMemberModel> list = new List<ConfMemberModel>(); Color color = new Color() { A = 255, R = 43, G = 97, B = 237 };
搜索按钮事件代码,简单的进行了实现,还可以再优化下,达到更优效果
1 private void btnSeach_Click(object sender, RoutedEventArgs e) 2 { 3 string txtPhoneno = txtSeach.Text.Trim(); 4 if (txtPhoneno != "") 5 { 6 var collection = dataGrid1.ItemsSource as ObservableCollection<ConfMemberModel>; 7 8 start: if (next == null) 9 { 10 next = collection.FirstOrDefault<ConfMemberModel>((cmm) => 11 { 12 13 if (cmm.Phoneno.Contains(txtPhoneno) || cmm.Data.Contains(txtPhoneno)) 14 { 15 dataGrid1.SelectedItem = cmm; 16 17 dataGrid1.Columns.ToList().ForEach( 18 (dgc) => 19 { 20 FrameworkElement fwElement = dgc.GetCellContent(cmm); 21 SetRowBG(fwElement, new SolidColorBrush(color)); 22 } 23 24 ); 25 return true; 26 } 27 28 return false; 29 }); 30 31 if (next != null) 32 { 33 list.Add(next); 34 } 35 else 36 { 37 var messageBox = new cwConfirmBox(); 38 messageBox.Show("未找到号码" + txtPhoneno); 39 return; 40 } 41 } 42 else 43 { 44 next = collection.FirstOrDefault<ConfMemberModel>((cmm) => 45 { 46 47 if ((cmm.Phoneno.Contains(txtPhoneno) || cmm.Data.Contains(txtPhoneno)) && !list.Contains(cmm)) 48 { 49 dataGrid1.SelectedItem = cmm; 50 51 dataGrid1.Columns.ToList().ForEach( 52 (dgc) => 53 { 54 FrameworkElement fwElement = dgc.GetCellContent(cmm); 55 SetRowBG(fwElement, new SolidColorBrush(color)); 56 } 57 58 ); 59 return true; 60 } 61 else 62 { 63 dataGrid1.Columns.ToList().ForEach( 64 (dgc) => 65 { 66 FrameworkElement fwElement = dgc.GetCellContent(cmm); 67 SetRowBG(fwElement, null); 68 } 69 70 ); 71 } 72 return false; 73 }); 74 75 if (next != null) 76 { 77 list.Add(next); 78 } 79 else 80 { 81 list.Clear(); 82 goto start; 83 } 84 85 } 86 } 87 else 88 { 89 var messageBox = new cwConfirmBox(); 90 messageBox.Show("请输入号码!"); 91 return; 92 } 93 }
1 /// <summary> 2 /// 设置行背景 3 /// </summary> 4 /// <param name="b"></param> 5 void SetRowBG(FrameworkElement fwElement, Brush brush) 6 { 7 DependencyObject dpObject = VisualTreeHelper.GetParent(fwElement); 8 9 if (dpObject.GetType() == typeof(Grid)) 10 { 11 var grid = dpObject as Grid; 12 13 grid.Background = brush; 14 15 return; 16 } 17 else 18 { 19 SetRowBG(dpObject as FrameworkElement, brush); 20 } 21 22 }
原理很简单,就是把所有列的背景进行了改变,此方法对列较少的datagird还行,多了也没测试,不知道性能会有多大影响,水平有限,暂时想到的这样操作,希望有大牛能够指点下。