列HeaderStyle目标类型 [英] Column HeaderStyle target type
本文介绍了列HeaderStyle目标类型的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
DataGridColumnHeader header = new DataGridColumnHeader();
Style headerstyle = new System.Windows.Style();
headerstyle.TargetType = typeof(DataGridColumnHeader);
Setter setter = new Setter();
Setter setter1 = new Setter();
Setter setter2 = new Setter();
setter.Property = FontSizeProperty;
FontSize = 10;
setter.Value = FontSize;
headerstyle.Setters.Add(setter);
setter1.Property = ForegroundProperty;
Foreground = Brushes.BlueViolet;
setter1.Value = Foreground;
headerstyle.Setters.Add(setter1);
Setter setter3 = new Setter();
LinearGradientBrush lb = new LinearGradientBrush();
Point startpoint = new Point(0.5, 0);
Point endpoint = new Point(1, 1);
lb.StartPoint = startpoint;
lb.EndPoint = endpoint;
GradientStop gst = new GradientStop();
lb.GradientStops.Add(new GradientStop(Colors.Black, 0.0));
lb.GradientStops.Add(new GradientStop(Colors.Orange, 0.5));
lb.GradientStops.Add(new GradientStop(Colors.Green, 1.0));
setter3.Property = BackgroundProperty;
setter3.Value = lb;
headerstyle.Setters.Add(setter3);
dataGrid1.ColumnHeaderStyle = headerstyle;
这怎么了?执行时会出现错误，指出目标不匹配.
DataGridColumnHeader''TargetType与元素``DataGridColumnHeader''的类型不匹配.
我正在附加相应的XAML文件
what is wrong with this . while executing it gives error saying target mismatch .
DataGridColumnHeader'' TargetType does not match type of element ''DataGridColumnHeader''.
i am attaching the corresponding XAML file
<dg:DataGrid.Columns>
<dg:DataGridTextColumn Header="AuthorID" FontWeight="Black" Foreground="Red"
FontSize="16" FontStyle="Italic"
CanUserReorder="True"
CanUserSort="True" SortDirection="Ascending" Binding="{Binding Path=AuthorID}">
<dg:DataGridTextColumn.ElementStyle>
<Style TargetType="TextBlock">
<Setter Property="TextAlignment" Value="Center" />
</Style>
</dg:DataGridTextColumn.ElementStyle>
<dg:DataGridTextColumn.EditingElementStyle>
<Style TargetType="TextBox">
<Setter Property="TextWrapping" Value="Wrap" />
<Setter Property="AcceptsReturn" Value="true" />
</Style>
</dg:DataGridTextColumn.EditingElementStyle>
<dg:DataGridColumn.HeaderStyle>
<Style TargetType="{x:Type dg:DataGridColumnHeader}">
<Setter Property="Background" >
<Setter.Value>
<LinearGradientBrush EndPoint="1,1" StartPoint="0.5,0" SpreadMethod="Pad">
<GradientStop Color="Bisque" Offset="0" />
<GradientStop Color="Cyan" Offset="1" />
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Foreground" Value="Black" />
<Setter Property="FontSize" Value="20" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="BorderBrush" Value="yellow"/>
<Setter Property="BorderThickness" Value="2,2,2,2"/>
</Style>
</dg:DataGridColumn.HeaderStyle>
</dg:DataGridTextColumn>
<dg:DataGridTextColumn Header="FirstName" FontWeight="Bold" Foreground="DarkGreen" FontSize="16" FontStyle="Italic"
CanUserSort="False" Binding="{Binding Path=FirstName}">
<dg:DataGridTextColumn.ElementStyle>
<Style TargetType="TextBlock">
<Setter Property="TextAlignment" Value="Center" />
</Style>
</dg:DataGridTextColumn.ElementStyle>
<dg:DataGridTextColumn.EditingElementStyle>
<Style TargetType="TextBox">
<Setter Property="TextWrapping" Value="Wrap" />
<Setter Property="AcceptsReturn" Value="true" />
</Style>
</dg:DataGridTextColumn.EditingElementStyle>
<dg:DataGridColumn.HeaderStyle>
<Style TargetType="{x:Type dg:DataGridColumnHeader}">
<Setter Property="Background" >
<Setter.Value>
<LinearGradientBrush EndPoint="1,1" StartPoint="0.5,0" SpreadMethod="Pad">
<GradientStop Color="Lavender" Offset="0" />
<GradientStop Color="BlanchedAlmond" Offset="1" />
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Foreground" Value="Black" />
<Setter Property="FontSize" Value="20" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="Width" Value="Auto" />
<Setter Property="BorderBrush" Value="Yellow"/>
<Setter Property="BorderThickness" Value="2,2,2,2"/>
</Style>
</dg:DataGridColumn.HeaderStyle>
</dg:DataGridTextColumn>
<dg:DataGridTextColumn Header="LastName" FontWeight="Bold" Foreground="OrangeRed" FontSize="16" FontStyle="Italic"
CanUserSort="False" Binding="{Binding Path=LastName}">
<dg:DataGridTextColumn.ElementStyle>
<Style TargetType="TextBlock">
<Setter Property="TextAlignment" Value="Center" />
</Style>
</dg:DataGridTextColumn.ElementStyle>
<dg:DataGridTextColumn.EditingElementStyle>
<Style TargetType="TextBox">
<Setter Property="TextWrapping" Value="Wrap" />
<Setter Property="AcceptsReturn" Value="true" />
</Style>
</dg:DataGridTextColumn.EditingElementStyle>
<dg:DataGridColumn.HeaderStyle>
<Style TargetType="{x:Type dg:DataGridColumnHeader}">
<Setter Property="Background" >
<Setter.Value>
<LinearGradientBrush EndPoint="1,1" StartPoint="0.5,0" SpreadMethod="Pad">
<GradientStop Color="Brown" Offset="0" />
<GradientStop Color="White" Offset="1" />
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Foreground" Value="Black" />
<Setter Property="FontSize" Value="20" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="Width" Value="Auto" />
<Setter Property="BorderBrush" Value="Yellow"/>
<Setter Property="BorderThickness" Value="2,2,2,2"/>
</Style>
</dg:DataGridColumn.HeaderStyle>
</dg:DataGridTextColumn>
<dg:DataGridTemplateColumn Header="DOB" MinWidth="100" CanUserSort="False">
<dg:DataGridTemplateColumn.HeaderStyle>
<Style TargetType="{x:Type dg:DataGridColumnHeader}">
<Setter Property="Background" >
<Setter.Value>
<LinearGradientBrush EndPoint="1,.1" StartPoint="0.5,1" SpreadMethod="Pad">
<GradientStop Color="Orange" Offset="1" />
<GradientStop Color="Thistle" Offset="0" />
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Foreground" Value="Black" />
<Setter Property="FontSize" Value="20" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="Width" Value="Auto" />
<Setter Property="BorderBrush" Value="yellow"/>
<Setter Property="BorderThickness" Value="2,2,2,2"/>
</Style>
</dg:DataGridTemplateColumn.HeaderStyle>
<dg:DataGridTemplateColumn.CellEditingTemplate>
<DataTemplate>
<dg:DatePicker SelectedDate="{Binding DOB}" SelectedDateFormat="Short" CalendarStyle="DynamicResource CalenderControlTemplate" removed="Yellow" />
</DataTemplate>
</dg:DataGridTemplateColumn.CellEditingTemplate>
<dg:DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding DOB, StringFormat=d}" Foreground="DarkTurquoise" HorizontalAlignment="Center" />
</DataTemplate>
</dg:DataGridTemplateColumn.CellTemplate>
</dg:DataGridTemplateColumn>
<dg:DataGridCheckBoxColumn Header="Pass/Fail" Binding="{Binding Pass}">
<dg:DataGridColumn.HeaderStyle>
<Style TargetType="{x:Type dg:DataGridColumnHeader}">
<Setter Property="Background" >
<Setter.Value>
<LinearGradientBrush EndPoint="1,1" StartPoint="0.5,0" SpreadMethod="Pad">
<GradientStop Color="#FFC2D6F6" Offset="0" />
<GradientStop Color="White" Offset="1" />
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Foreground" Value="Black" />
<Setter Property="FontSize" Value="20" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="Width" Value="Auto" />
<Setter Property="BorderBrush" Value="Yellow"/>
<Setter Property="BorderThickness" Value="2,2,2,2"/>
</Style>
</dg:DataGridColumn.HeaderStyle>
</dg:DataGridCheckBoxColumn>
<dg:DataGridTextColumn Header="Nationality" FontWeight="Bold" Foreground="SandyBrown"
FontSize="16" FontStyle="Italic" CanUserSort="False"
Binding="{Binding Path= Nationality}" Width="Auto">
<dg:DataGridTextColumn.ElementStyle>
<Style TargetType="TextBlock">
<Setter Property="TextAlignment" Value="Center" />
</Style>
</dg:DataGridTextColumn.ElementStyle>
<dg:DataGridTextColumn.EditingElementStyle>
<Style TargetType="TextBox">
<Setter Property="TextWrapping" Value="Wrap" />
<Setter Property="AcceptsReturn" Value="true" />
</Style>
</dg:DataGridTextColumn.EditingElementStyle>
<dg:DataGridColumn.HeaderStyle>
<Style TargetType="{x:Type dg:DataGridColumnHeader}">
<Setter Property="Background" >
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0" SpreadMethod="Pad">
<GradientStop Color="Blue" Offset="0" />
<GradientStop Color="White" Offset="1" />
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Foreground" Value="Black" />
<Setter Property="FontSize" Value="20" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="Width" Value="Auto" />
<Setter Property="BorderBrush" Value="Yellow"/>
<Setter Property="BorderThickness" Value="2,2,2,2"/>
</Style>
</dg:DataGridColumn.HeaderStyle>
</dg:DataGridTextColumn>
</dg:DataGrid.Columns>
regards iqbal
regards iqbal
推荐答案
Hi when I run your code it works perfectly. Is it not because you may be setting the style for the DatagridColumnHeader in XAML as well? And when are you initialising this code? Can you maybe attach your xaml for your datagrid control please.
Hi when I run your code it works perfectly. Is it not because you may be setting the style for the DatagridColumnHeader in XAML as well? And when are you initialising this code? Can you maybe attach your xaml for your datagrid control please.
Remove your namespace reference of dg: and add this xaml
Remove your namespace reference of dg: and add this xaml
<datagrid autogeneratecolumns="False" height="200" horizontalalignment="Left" margin="153,84,0,0" name="dataGrid1" verticalalignment="Top" width="200">
<datagrid.columns>
<datagridtextcolumn header="AuthorID" fontweight="Black" foreground="Red">
FontSize="16" FontStyle="Italic"
CanUserReorder="True"
CanUserSort="True" SortDirection="Ascending" Binding="{Binding Path=AuthorID}">
<datagridtextcolumn.elementstyle>
<style targettype="TextBlock">
<setter property="TextAlignment" value="Center" />
</style>
</datagridtextcolumn.elementstyle>
<datagridtextcolumn.editingelementstyle>
<style targettype="TextBox">
<setter property="TextWrapping" value="Wrap" />
<setter property="AcceptsReturn" value="true" />
</style>
</datagridtextcolumn.editingelementstyle>
<datagridcolumn.headerstyle>
<style targettype="{x:Type DataGridColumnHeader}">
<setter property="Background">
<setter.value>
<lineargradientbrush endpoint="1,1" startpoint="0.5,0" spreadmethod="Pad">
<gradientstop color="Bisque" offset="0" />
<gradientstop color="Cyan" offset="1" />
</lineargradientbrush>
</setter.value>
</setter>
<setter property="Foreground" value="Black" />
<setter property="FontSize" value="20" />
<setter property="HorizontalContentAlignment" value="Center" />
<setter property="BorderBrush" value="yellow" />
<setter property="BorderThickness" value="2,2,2,2" />
</style>
</datagridcolumn.headerstyle>
</datagridtextcolumn>
<datagridtextcolumn header="FirstName" fontweight="Bold" foreground="DarkGreen" fontsize="16" fontstyle="Italic">
CanUserSort="False" Binding="{Binding Path=FirstName}">
<datagridtextcolumn.elementstyle>
<style targettype="TextBlock">
<setter property="TextAlignment" value="Center" />
</style>
</datagridtextcolumn.elementstyle>
<datagridtextcolumn.editingelementstyle>
<style targettype="TextBox">
<setter property="TextWrapping" value="Wrap" />
<setter property="AcceptsReturn" value="true" />
</style>
</datagridtextcolumn.editingelementstyle>
<datagridcolumn.headerstyle>
<style targettype="{x:Type DataGridColumnHeader}">
<setter property="Background">
<setter.value>
<lineargradientbrush endpoint="1,1" startpoint="0.5,0" spreadmethod="Pad">
<gradientstop color="Lavender" offset="0" />
<gradientstop color="BlanchedAlmond" offset="1" />
</lineargradientbrush>
</setter.value>
</setter>
<setter property="Foreground" value="Black" />
<setter property="FontSize" value="20" />
<setter property="HorizontalContentAlignment" value="Center" />
<setter property="Width" value="Auto" />
<setter property="BorderBrush" value="Yellow" />
<setter property="BorderThickness" value="2,2,2,2" />
</style>
</datagridcolumn.headerstyle>
</datagridtextcolumn>
<datagridtextcolumn header="LastName" fontweight="Bold" foreground="OrangeRed" fontsize="16" fontstyle="Italic">
CanUserSort="False" Binding="{Binding Path=LastName}">
<datagridtextcolumn.elementstyle>
<style targettype="TextBlock">
<setter property="TextAlignment" value="Center" />
</style>
</datagridtextcolumn.elementstyle>
<datagridtextcolumn.editingelementstyle>
<style targettype="TextBox">
<setter property="TextWrapping" value="Wrap" />
<setter property="AcceptsReturn" value="true" />
</style>
</datagridtextcolumn.editingelementstyle>
<datagridcolumn.headerstyle>
<style targettype="{x:Type DataGridColumnHeader}">
<setter property="Background">
<setter.value>
<lineargradientbrush endpoint="1,1" startpoint="0.5,0" spreadmethod="Pad">
<gradientstop color="Brown" offset="0" />
<gradientstop color="White" offset="1" />
</lineargradientbrush>
</setter.value>
</setter>
<setter property="Foreground" value="Black" />
<setter property="FontSize" value="20" />
<setter property="HorizontalContentAlignment" value="Center" />
<setter property="Width" value="Auto" />
<setter property="BorderBrush" value="Yellow" />
<setter property="BorderThickness" value="2,2,2,2" />
</style>
</datagridcolumn.headerstyle>
</datagridtextcolumn>
<datagridtemplatecolumn header="DOB" minwidth="100" canusersort="False">
<datagridtemplatecolumn.headerstyle>
<style targettype="{x:Type DataGridColumnHeader}">
<setter property="Background">
<setter.value>
<lineargradientbrush endpoint="1,.1" startpoint="0.5,1" spreadmethod="Pad">
<gradientstop color="Orange" offset="1" />
<gradientstop color="Thistle" offset="0" />
</lineargradientbrush>
</setter.value>
</setter>
<setter property="Foreground" value="Black" />
<setter property="FontSize" value="20" />
<setter property="HorizontalContentAlignment" value="Center" />
<setter property="Width" value="Auto" />
<setter property="BorderBrush" value="yellow" />
<setter property="BorderThickness" value="2,2,2,2" />
</style>
</datagridtemplatecolumn.headerstyle>
<datagridtemplatecolumn.celleditingtemplate>
<datatemplate>
<datepicker selecteddate="{Binding DOB}" selecteddateformat="Short" calendarstyle="DynamicResource CalenderControlTemplate" />
</datatemplate>
</datagridtemplatecolumn.celleditingtemplate>
<datagridtemplatecolumn.celltemplate>
<datatemplate>
<textblock text="{Binding DOB, StringFormat=d}" foreground="DarkTurquoise" horizontalalignment="Center" />
</datatemplate>
</datagridtemplatecolumn.celltemplate>
</datagridtemplatecolumn>
<datagridcheckboxcolumn header="Pass/Fail" binding="{Binding Pass}">
<datagridcolumn.headerstyle>
<style targettype="{x:Type DataGridColumnHeader}">
<setter property="Background">
<setter.value>
<lineargradientbrush endpoint="1,1" startpoint="0.5,0" spreadmethod="Pad">
<gradientstop color="#FFC2D6F6" offset="0" />
<gradientstop color="White" offset="1" />
</lineargradientbrush>
</setter.value>
</setter>
<setter property="Foreground" value="Black" />
<setter property="FontSize" value="20" />
<setter property="HorizontalContentAlignment" value="Center" />
<setter property="Width" value="Auto" />
<setter property="BorderBrush" value="Yellow" />
<setter property="BorderThickness" value="2,2,2,2" />
</style>
</datagridcolumn.headerstyle>
</datagridcheckboxcolumn>
<datagridtextcolumn header="Nationality" fontweight="Bold" foreground="SandyBrown">
FontSize="16" FontStyle="Italic" CanUserSort="False"
Binding="{Binding Path= Nationality}" Width="Auto">
<datagridtextcolumn.elementstyle>
<style targettype="TextBlock">
<setter property="TextAlignment" value="Center" />
</style>
</datagridtextcolumn.elementstyle>
<datagridtextcolumn.editingelementstyle>
<style targettype="TextBox">
<setter property="TextWrapping" value="Wrap" />
<setter property="AcceptsReturn" value="true" />
</style>
</datagridtextcolumn.editingelementstyle>
<datagridcolumn.headerstyle>
<style targettype="{x:Type DataGridColumnHeader}">
<setter property="Background">
<setter.value>
<lineargradientbrush endpoint="0.5,1" startpoint="0.5,0" spreadmethod="Pad">
<gradientstop color="Blue" offset="0" />
<gradientstop color="White" offset="1" />
</lineargradientbrush>
</setter.value>
</setter>
<setter property="Foreground" value="Black" />
<setter property="FontSize" value="20" />
<setter property="HorizontalContentAlignment" value="Center" />
<setter property="Width" value="Auto" />
<setter property="BorderBrush" value="Yellow" />
<setter property="BorderThickness" value="2,2,2,2" />
</style>
</datagridcolumn.headerstyle>
</datagridtextcolumn>
</datagrid.columns>
</datagrid>
I think the problem lies in your xaml with the namespace declaration of:
I think the problem lies in your xaml with the namespace declaration of:
dg:DataGridTextColumn
what is
what is
dg: defined as in you xaml.
Try excluding it and see now if you don''t get the problem. because it seems to work fine for me.
问候
defined as in you xaml.
Try excluding it and see now if you don''t get the problem. because it seems to work fine for me.
Regards
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