Silverlight自动完成框 [英] Silverlight AutoComplete box

问题描述

嗨


在AutCompleteBox中我用复选框显示多个项目。如果我在autocompletebox中选择了两个以上的项目，我会连接所选项目并显示为AutoCompleteBox的选定文本。



c＃code：

  public   void  SetString（）
 {
  string  str =   ; 
  foreach （RecurDays项目  ObjSchldRecurDaysList）
 {
  if （item.IsChecked）
 {
 str = str + item.SchldDayDesc.Substring（ 0 ， 3 ）+  ，; 
} 
} 
  if （str！=  ）
 str = str.Substring（ 0 ，str.Length  -   1 ）; 
 SchldRecurDaysText = str; 
} 

xaml代码：

 <   cc：IDAutoComplete    名称  =  tbxRecurOn1001    Grid.Row   =   10    Grid.Column   =  5  
   
                      < span class =code-attribute>                                                      < span class =code-attribute>    文本  =  {Binding SchldRecurDaysText，Mode = TwoWay}    ItemsSource   =  {Binding ObjSchldRecurDaysList，Mode = TwoWay} < span class =code-attribute> 
   
    < span class =code-attribute>                                                                             SelectedItem   =  {Binding ObjSchldRecurDaysSelectedData，Mode = TwoWay}  
   
                                                  < cc：IDAutoComplete.ItemTemplate  >  
 <   DataTemplate  >  
 <   CheckBox      名称 < span class =code-keyword> = 复选框   内容  =  {Binding SchldDayDesc，Mode = OneWay} <跨度cl ass =code-attribute>   Horizo​​ntalAlignment   =  Stretch    Horizo​​ntalContentAlignment   =  拉伸  
   
                                        < span class =code-attribute>                                                      < span class =code-attribute>   IsChecked   =  {Binding Path = IsChecked，Mode = TwoWay}    MinWidth   =  150  
   
                                                                            < span class =code-attribute>                     FontStyle   = 正常   前景  = 黑色   >  
 <   / CheckBox  >  
 <   / DataTemplate  >  
 <   / cc：IDAutoComplete.ItemTemplate  >  
 <   / cc：IDAutoComplete   >  

文本值获取值为星期一，星期二，星期三，但在视图中不显示。请帮助我....

解决方案

实施INotifyPropertyChanged事件...

以下是一些样品

whats-the-concept-behind-inotifypropertychanged [ ^ ]



implement-inotifypropertychanged.html [ ^ ]



简单示例-的-inotifypropertychanged.aspx [ ^ ]

< pre lang =cs> public string SchldRecurDaysText
{
get { return _SchldRecurDaysText; }
set
{
_SchldRecurDaysText = value ;
通知（ SchldRecurDaysText）;
}
}

  protected   void 通知（ string  propertyName）
 {
 ConfirmPropertyName （propertyName的）; 
 
  if （propertyChanged！=  null ）
 {
 propertyChanged（ this ， new  PropertyChangedEventArgs（propertyName））; 
} 
} 

Hi
In AutCompleteBox i''m Displaying multiple items with check box. if i''m choosing more than two items in autocompletebox, i concatenate the selected items and show as selected text of AutoCompleteBox.

c# code:

public void SetString()
       {
           string str = "";
           foreach (RecurDays item in ObjSchldRecurDaysList)
           {
               if (item.IsChecked)
               {
                   str = str + item.SchldDayDesc.Substring(0, 3) + ",";
               }
           }
           if (str != "")
               str = str.Substring(0, str.Length - 1);
           SchldRecurDaysText = str;
       }

xaml code:

<cc:IDAutoComplete Name="tbxRecurOn1001" Grid.Row="10" Grid.Column="5"

                                       Text="{Binding SchldRecurDaysText, Mode=TwoWay}" ItemsSource="{Binding ObjSchldRecurDaysList,Mode=TwoWay}"

                                       SelectedItem="{Binding ObjSchldRecurDaysSelectedData,Mode=TwoWay}"

                        <cc:IDAutoComplete.ItemTemplate>
                            <DataTemplate>
                                <CheckBox  Name="checkbox" Content="{Binding SchldDayDesc,Mode=OneWay}" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"

                                               IsChecked="{Binding Path=IsChecked, Mode=TwoWay}" MinWidth="150"

                                               FontStyle="Normal" Foreground="Black" >
                                </CheckBox>
                            </DataTemplate>
                        </cc:IDAutoComplete.ItemTemplate>
                    </cc:IDAutoComplete>

The Text Value get value as "Mon,Tue,wed" but it is not displyed in View. please help me....

解决方案

Implement INotifyPropertyChanged event...
Here are some samples
whats-the-concept-behind-inotifypropertychanged[^]

implementing-inotifypropertychanged.html[^]

simple-example-of-inotifypropertychanged.aspx[^]

public string SchldRecurDaysText
       {
           get { return _SchldRecurDaysText; }
           set
           {
               _SchldRecurDaysText = value;
               Notify("SchldRecurDaysText");
           }
       }

protected void Notify(string propertyName)
       {
           ConfirmPropertyName(propertyName);

           if (propertyChanged != null)
           {
              propertyChanged(this, new PropertyChangedEventArgs(propertyName));
           }
       }

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