如何将组合框中的选定项绑定到datagrid中的textblock [英] how to bind a selected item in a combobox to textblock inside datagrid

问题描述

hi
i我在数据网格中使用了combobox而且组合框在cellediting模板中

i只想将组合框中的选定项目绑定到datgrid内的textblock

如果有人知道如何帮助我这里是我的xaml：

 <   datagrid     autogeneratecolumns   =  False    virtualizingstackpanel.isvirtualizing   = 错误    grid.row   =  1 < span class =code-attribute>   grid.columnspan   =  7    name   =  attendancegrid   已删除  = ＃FFDCE8EB    canuseraddrows   =  False < span class =code-keyword>>  
 BorderBrush =ChocolateBorderThickness =5RowHeight =30IsSynchronizedWithCurrentItem =TrueHorizo​​ntalGridLinesBrush =＃FFB74646IsReadOnly =False Foreground =BlackLoaded =attendancegrid_LoadedSelectionChanged =attendancegrid_SelectionChangedCurrentCellChanged =attendancegrid_CurrentCellChangedCellEditEnding =attendancegrid_CellEditEnding> 
 
 <   datagrid.columns  >  
 <   datagridtextcolumn     header   = 小时    binding   =  {Binding time}    fontsize   =  14    fontweight   = 粗体    isreadonly  < span class =code-keyword> =  True    width   =  100    /  >  
 
 
 < span class =code-keyword><   datagridtemplatecolumn     header   = 星期一    width   =  100 >  
 <   datagridtemplatecolumn。 celleditingtemplate  >  
 <   datatemplate  >  
 <   stackpanel     orientation   = 水平 >  
 <   combobox     x：name   = 星期一    width   =  50    selectedvalue   =  {Binding ProductName，Mode = TwoWay}    issynchronizedwithcurrentitem   =  true   已加载  =  monday_Loaded    selectionchanged   =  monday_SelectionChanged    xmlns：x   = ＃unknown >  <   / combobox  >  
 <   combobox     x：名称  =  staff    width   =  50   已加载  =  staff_Loaded    xmlns：x   = ＃unknown >  <   / combobox  >  
 <   / stackpanel  >  
 <   / datatemplate  >  
 
 <   / datagridtemplatecolumn。 celleditingtemplate  >  
 <   datagridtemplatecolumn.celltemplate  >  
 <   datatemplate  >  
 <   stackpanel  >  
 <   textblock     x：name   =   mon    text  < span class =code-keyword> =  {Binding ProductName}    xmlns：x   = ＃unknown >  <   / textblock  >  
 <   / stackpanel  >  
 <   / datatemplate  >  
 <   / datagridtemplatecolumn.celltemplate  >  
 
 <   / datagridtemplatecolumn   >  
 
 
 <   / datagrid.columns  >  
 <   datagrid。 columnheader   style  >  
  <  样式    TargetType   =  DataGridColumnHeader >  
 < setter  property =FontSizevalue =15/ > 
 < setter  property =FontWeightvalue =Bold/> 
 < setter  property =Foregroundvalue =Chocolate/> 
 < setter  property =Horizo​​ntalContentAlignmentvalue =Center/> 
 < /  风格 >  
 <   / datagrid.columnheader  样式 >  <   / datagrid  >  

解决方案

首先，我不明白你为什么要使用DataGrid？您可以使用ItemsControl创建更简单的解决方案。



其次，您正在尝试实现Master-Detail模式。 Combo-Box选择的值是Master，TextBlock是Details。



我写了一个简单的例子，它完全符合你在我的文章中想做的事情：



如何：使用主 - 细节模式使用WPF Hierarchical DataTemplate [ ^ ]



请查看。如果您有更多问题我会很乐意提供帮助。



最好的问候，



Shai

hi i am using combobox inside datagrid and the combobox is in cellediting template
i just want to bind the selected item in the combobox to textblock inside the datgrid
if any knows how to do it help me here is my xaml:

<datagrid autogeneratecolumns="False" virtualizingstackpanel.isvirtualizing="False" grid.row="1" grid.columnspan="7" name="attendancegrid" removed="#FFDCE8EB" canuseraddrows="False">
                  BorderBrush="Chocolate" BorderThickness="5" RowHeight="30" IsSynchronizedWithCurrentItem="True"  HorizontalGridLinesBrush="#FFB74646" IsReadOnly="False" Foreground="Black" Loaded="attendancegrid_Loaded" SelectionChanged="attendancegrid_SelectionChanged" CurrentCellChanged="attendancegrid_CurrentCellChanged" CellEditEnding="attendancegrid_CellEditEnding">
           
            <datagrid.columns>
                <datagridtextcolumn header="Hours" binding="{Binding time}" fontsize="14" fontweight="Bold" isreadonly="True" width="100" />


                <datagridtemplatecolumn header="Monday" width="100">
                    <datagridtemplatecolumn.celleditingtemplate>
                        <datatemplate>
                            <stackpanel orientation="Horizontal">
                                <combobox x:name="monday" width="50" selectedvalue="{Binding ProductName, Mode=TwoWay}" issynchronizedwithcurrentitem="true" loaded="monday_Loaded" selectionchanged="monday_SelectionChanged" xmlns:x="#unknown"></combobox>
                                <combobox x:name="staff" width="50" loaded="staff_Loaded" xmlns:x="#unknown"></combobox>
                            </stackpanel>
                        </datatemplate>
                       
                    </datagridtemplatecolumn.celleditingtemplate>
                    <datagridtemplatecolumn.celltemplate>
                        <datatemplate>
                            <stackpanel>
                                <textblock x:name="mon" text="{Binding ProductName}" xmlns:x="#unknown"></textblock>
                                </stackpanel> 
                        </datatemplate>
                    </datagridtemplatecolumn.celltemplate>

                </datagridtemplatecolumn>
              
               
            </datagrid.columns>
            <datagrid.columnheaderstyle>
                <Style TargetType="DataGridColumnHeader">
                    <setter property="FontSize" value="15" />
                    <setter property="FontWeight" value="Bold" />
                    <setter property="Foreground" value="Chocolate" />
                    <setter property="HorizontalContentAlignment" value="Center" />
                </Style>
            </datagrid.columnheaderstyle></datagrid>

解决方案

Hi,

First, I don't understand why are you using DataGrid? You can create a much more simple solution using ItemsControl.

Second, You are trying to implement a Master-Detail pattern. The Combo-Box selected value is the Master and the TextBlock is the Details.

I've wrote a simple example that do exactly what you want to do in my article:

How to: Use the Master-Detail Pattern with WPF Hierarchical DataTemplate[^]

Please review it. If you have more questions I'll be happy to help.

Best Regards,

Shai

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