我的用户界面:
<ListView Name="persons" SelectionChanged="persons_SelectionChanged">
<ListView.View>
<GridView AllowsColumnReorder="False">
<GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}" Width="auto"/>
<GridViewColumn Header="Age" DisplayMemberBinding="{Binding Age}" Width="auto"/>
</GridView>
</ListView.View>
</ListView>
我的UI的Codebehind:
internal void Update(IEnumerable<Person> pers)
{
this.persons.ItemsSource = null;
this.persons.ItemsSource = pers;
UpdateLayout();
}
我的实体:
class Person
{
public string Name { get; set; }
public int Age { get; set; }
}
GridViewColumns具有GridViewColumn-Header的宽度。即使我使用长名称的人调用Update()。列不会调整大小。
a)如何自动调整“名称”列(当我调用Update时)到最长名称的长度,但不要超过值x(我想指定列的最大宽度)?
b)如何指定“Age”-Column将空间填充到控件的末尾(以便gridview的列使用控件的完整宽度)?
答案 0 :(得分:6)
GridView不会自动调整大小。
要调整列的大小,您可以
foreach (GridViewColumn c in gv.Columns)
{
// Code below was found in GridViewColumnHeader.OnGripperDoubleClicked() event handler (using Reflector)
// i.e. it is the same code that is executed when the gripper is double clicked
// if (adjustAllColumns || App.StaticGabeLib.FieldDefsGrid[colNum].DispGrid)
if (double.IsNaN(c.Width))
{
c.Width = c.ActualWidth;
}
c.Width = double.NaN;
}
至于确定最后填充区域的大小,我使用转换器。我不认为这个转换器完全符合您的需要,但它应该让您开始。
<GridViewColumn Width="{Binding ElementName=lvCurDocFields, Path=ActualWidth, Converter={StaticResource widthConverter}, ConverterParameter=100}">
[ValueConversion(typeof(double), typeof(double))]
public class WidthConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
// value is the total width available
double otherWidth;
try
{
otherWidth = System.Convert.ToDouble(parameter);
}
catch
{
otherWidth = 100;
}
if (otherWidth < 0) otherWidth = 0;
double width = (double)value - otherWidth;
if (width < 0) width = 0;
return width; // columnsCount;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
GridView速度很快但需要宝宝坐一点。
答案 1 :(得分:1)
我从How to autosize and right-align GridViewColumn data in WPF?
取出了这个<Window.Resources>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</Window.Resources>
那对你有帮助吗?