WPF的一些控件的触发事件记录

<c1:C1ComboBox Width="230" ItemsSource="{Binding ReplaceWayList}" Style="{StaticResource ListSearch-C1ComboBox}" SelectedValueChanged="C1ComboBox_SelectedValueChanged"，

下拉框事件，SelectedValueChanged选中值改变事件，通过这个事件触发相关操作

private void C1ComboBox_SelectedValueChanged(object sender, C1.WPF.PropertyChangedEventArgs<object> e)

{

var vm = DataContext as PlateReplaceApplyFormVM;

if (vm == null)

{

return;

}

//也可以直接通过控件名获取，但是表格中重复的时候就不能这样写ImpCouponMode就是控件名称

// string couponMode = ImpCouponMode.Text;

//获取旧值，也可以获取新值，因为我这边要检测改变情况清空的数据，没有获取新值，只要有旧值说明之前应该选中值写过数据了，更换就需要清空

var OldValue = e.OldValue;

if (OldValue!=null)

{

vm.deleteAftrePartChange();

}

控件的触发值改变事件有三种、SelectedValueChanged、SelectedItemChanged、SelectedIndexChanged

我一般用前面两种SelectedValueChanged，可以直接获取变化的值，可以获取到新旧值，SelectedItemChanged是获取选中对象里面会有很多属性，可以将选中的对象转换为具体的对象var a = sender as C1ComboBox;就是直接转控件，通过控件的SelectedItem获取选中项，选中项在转换为具体的对象，通过属性key获取值，进行判断，也可以用于值的更改

<c1:C1ComboBox Style="{StaticResource Grid-ComboBox-Nums}" ItemsSource="{Binding DisposalTypeList}" IsEnabled="{Binding IsEnable}"

DisplayMemberPath="Value" SelectedValuePath="Key" Name="c1cbCheckoutType"

SelectedValue="{Binding Item.DisposalType, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, ValidatesOnExceptions=True, ValidatesOnDataErrors=True,

NotifyOnValidationError=True}" Width="90" SelectedItemChanged="c1cbCheckoutType_SelectedItemChanged"/>

private void c1cbCheckoutType_SelectedItemChanged(object sender, C1.WPF.PropertyChangedEventArgs<object> e)

{

//选中的控件项转化成枚举项对象e.NewValue到Common.StatusEnum.ComboxKeyValue

var a = sender as C1ComboBox;

if (null != a && a.SelectedIndex == -1) return;

if (null != ((Common.StatusEnum.ComboxKeyValue)a.SelectedItem))

{

_vm = DataContext as AssetDisposalDetailFormVM;

// 选出售显示的控件

if (((Common.StatusEnum.ComboxKeyValue)e.NewValue).Key == "1")

{

spCheckoutType.Visibility = Visibility.Visible;

spIsContract.Visibility = Visibility.Visible;

spWr.Visibility = Visibility.Visible;

spPhone.Visibility = Visibility.Visible;

lbWrName.Content = "回收商";

}

else

{

spCheckoutType.Visibility = Visibility.Hidden;

spIsContract.Visibility = Visibility.Collapsed;

_vm.Item.TaxRate = null;

spWr.Visibility = Visibility.Collapsed;

spPhone.Visibility = Visibility.Collapsed;

}

// 利用控件的值指回旧值 CbBox.SelectedItem = e.OldValue;

var CbBox = sender as C1ComboBox;

var newItem = e.NewValue as KeyValue;

if (CbBox == null || newItem == null || _vm == null)

{

return;

}

if ((newItem.Key == (int)PaymentMethodEnum.Acceptance || newItem.Key == (int)PaymentMethodEnum.Check) && _vm.SupBankIsEmpty)

{

MessageBoxUtil.ShowWarn("该物流商无银行账号，支付方式只能选"转账"或"现金"！");

CbBox.SelectedItem = e.OldValue;

}

还有表格中通过点击事件获取整行数据

Click="BtnMaterialCode_Click"

private void BtnMaterialCode_Click(object sender, RoutedEventArgs e)

{

var vm = DataContext as StockClassParamChangeApplyFormVM;

if (vm == null)

{

return;

}

var testInfo = CfgReviewItem.HitTest(Mouse.GetPosition(CfgReviewItem));

if (testInfo.Row > -1)

{

var selectedItem = CfgReviewItem.Rows $testInfo.Row$ .DataItem as StockClassParamChangeDetailLogModel;

vm.CurrentDetailItem = selectedItem;

vm.SelectMaterialCode();

}

还有复选框的选中Checked和不选中Unchecked事件，都是同样的处理方式

private void CheckBox_Checked(object sender, System.Windows.RoutedEventArgs e)

{

var vm = DataContext as ProcedureScrapFormVM;

if (vm == null)

{

return;

}

vm.SetOutProcedureScrapGroupList();

}