Question

我已经从telerik创建了一个派生类：RadGridView。我需要根据数据设置单元格样式。所以我创建了一个样式类，并将其用作列的cellstyleselector。我需要为每列设置列单元格样式，我使用下面的代码，但它不起作用。你知道它为什么不起作用吗？

        public WPFGridConv()
    {
        this.ShowGroupPanel = false;
        this.Loaded += WPFGridConv_Loaded;
        this.AutoGeneratingColumn += WPFGridConv_AutoGeneratingColumn;
        this.ValidationType = GridViewValidationType.None;
        this.ValidatesOnDataErrors= GridViewValidationMode.InViewMode;

    }

    private void WPFGridConv_AutoGeneratingColumn(object sender, GridViewAutoGeneratingColumnEventArgs e)
    {
        CreateHeader();
    }


    public void WPFGridConv_Loaded(object sender, System.Windows.RoutedEventArgs e)
    {
        CreateHeader();

    }

    private void CreateHeader()
    {

        foreach (Telerik.Windows.Controls.GridViewColumn column in this.Columns)
        {

                column.CellStyleSelector= new GridStyleSelector();

        }
    }


public class GridStyleSelector : StyleSelector
{

    public override Style SelectStyle(object item, DependencyObject container)
    {
        if (container is GridViewCell)
        {
            GridViewCell cell = container as GridViewCell;
            string columnId = cell.Column.Tag.ToString();
            WPFGridConv grid = cell.ParentOfType<WPFGridConv>();
            List<InputClass.GridColumnInfoClass> columnsInfoList = grid.workingGridClass.ListOfColumnsInfo;
            InputClass.GridColumnInfoClass columnInfo = columnsInfoList.Find(x => x.id == columnId);
            Type columnType = columnInfo.typeOfColumn;
            if ((cell.Value==null||string.IsNullOrEmpty(cell.Value.ToString())) && columnInfo.IsValueNecessary)
            {
                return NeedeValueStyle;
            }
            else
            {
                if (columnType == null || columnType == typeof(double))
                {
                    double dummyDbl;
                    if (!double.TryParse(cell.Value.ToString(), out dummyDbl))
                        return BadInputStyle;
                    else
                        return CorrectValueStyle;
                }
                else if (columnType == typeof(int))
                {
                    int dummyInt;
                    if (!int.TryParse(cell.Value.ToString(), out dummyInt))
                        return BadInputStyle;
                    else
                        return CorrectValueStyle;
                }
                return CorrectValueStyle;
            }
        }
        return null;
    }

    public Style OutOfRangeStyle
    {
        get
        {
            Style returnStyle=new Style(typeof(GridViewCell));
            returnStyle.Setters.Add(new Setter(GridViewCell.BorderBrushProperty, new SolidColorBrush(Colors.Purple)));
            return returnStyle;
        }
        set
        {

        }
    }

    public Style BadInputStyle {
        get
        {
            Style returnStyle = new Style(typeof(GridViewCell));
            returnStyle.Setters.Add(new Setter(GridViewCell.BorderBrushProperty, new SolidColorBrush(Colors.Red)));
            return returnStyle;
        }
        set
        {

        }
    }

    public Style NeedeValueStyle
    {
        get
        {
            Style returnStyle = new Style(typeof(GridViewCell));
            returnStyle.Setters.Add(new Setter(GridViewCell.BorderBrushProperty, new SolidColorBrush(Colors.IndianRed)));
            return returnStyle;
        }
        set
        {

        }
    }
    public Style CorrectValueStyle
    {
        get
        {
            Style returnStyle = new Style(typeof(GridViewCell));
            returnStyle.Setters.Add(new Setter(GridViewCell.BorderBrushProperty, new SolidColorBrush(Colors.Black)));
            return returnStyle;
        }
        set
        {

        }
    }
}

Answer 1

如果您使用隐式主题，那么您的样式将无效，因为它们不基于现有样式。

您应该删除在getter中创建的样式，而不是在app / page / control中将它们添加为xaml资源。

例如，更改

    public Style CorrectValueStyle { get; set; }

到

    <Grid.Resources>
    <my:GridStyleSelector x:Key="styleSelector">
        <my:GridStyleSelector.CorrectValueStyle>
            <Style TargetType="telerik:GridViewCell">
                <Setter Property="BorderBrush" Value="Black"/>
            </Style>
        </my:GridStyleSelector.CorrectValueStyle>

        ...etc...

    </my:GridStyleSelector>
</Grid.Resources>

然后在你的xaml中定义样式选择器：

<Style TargetType="telerik:GridViewCell" BasedOn="{StaticResource GridViewCellStyle">

如果您使用隐式主题，则需要为每个样式设置BasedOn属性：

<telerik:RadGridView>
<telerik:RadGridView.Columns>
    <telerik:GridViewDataColumn DataMemberBinding="{Binding SomeProperty}"
                                CellStyleSelector="{StaticResource styleSelector}" />
</telerik:RadGridView.Columns>
</telerik:RadGridView>

然后，您可以在列上使用样式选择器：

display: flex;
justify-content:center;

Answer 2

大家好，谢谢你的回应。 telerik支持回答我如下，正如我所检查的那样，这是真的。

您好，您定义的样式已正确定义并且确实已应用，但是，由于RadGridView的网格线，不遵守单元格的BorderThickness和BorderBrush属性。您可以通过设置Background或Foreground属性来测试它，以查看是否应用了样式。因此，您需要编辑元素的控件模板以获得所需的结果。这是讨论类似场景的论坛帖子。我希望你觉得这有帮助。问候，迪莉兰特拉伊科夫 Telerik by Progress

在后面的代码中定义和使用样式

2 个答案: