Question

我使用数据集填充了WPF Datagrid。我试图在两列中更改数据的字体颜色。我使用

工作

REMOVED OLD CODE

但它并没有很好地保持颜色，尤其是在网格上滚动时。它也很慢。

是否可以使用IValueCoverter执行此操作，还是有其他更有效的方法来实现此目的？

编辑

我试图采用新方法来解决这个问题。我创建了一个类来返回bool，然后使用该bool来确定字体是绿色还是红色。

CLASS

class EqualValuesColourConverter
{
    public static void ChangeColours(int pQty, int pPri, int pTot, int gQty, int gPri, int gTot)
    {
        int iqty = pQty;
        int gqty = gQty;
        int iprice = pPri;
        int gprice = gPri;
        int itotal = pTot;
        int gtotal = gTot;

        bool fontColor = true;

        if ((iqty == gqty) && (iprice == gprice) && (itotal == gtotal)) fontColor = true;
        else fontColor = false;

    }
 }

致电课程

 string iqty = ((DataRowView)DgInvoiceLines.SelectedItem)["Inv_Quantity"].ToString();
            string gqty = ((DataRowView)DgInvoiceLines.SelectedItem)["Grn_Quantity"].ToString();
            string iprice = ((DataRowView)DgInvoiceLines.SelectedItem)["Inv_Price"].ToString();
            string gprice = ((DataRowView)DgInvoiceLines.SelectedItem)["Grn_Price"].ToString();
            string itotal = ((DataRowView)DgInvoiceLines.SelectedItem)["Inv_Total"].ToString();
            string gtotal = ((DataRowView)DgInvoiceLines.SelectedItem)["Grn_Total"].ToString();

            int pQty = int.Parse(iqty);
            int pPri = int.Parse(iprice);
            int pTot = int.Parse(itotal);
            int gQty = int.Parse(gqty);
            int gPri = int.Parse(gprice);
            int gTot = int.Parse(gtotal);

            EqualValuesColourConverter.ChangeColours(pQty, pPri, pTot, gQty, gPri, gTot);

XAML

<DataGridTextColumn Width="61" Header="Inv_Quantity" Binding="{Binding Inv_Quantity}">
<DataGridTextColumn.CellStyle>
    <Style TargetType="{x:Type DataGridCell}">
        <Setter Property="Foreground" Value="Green"/>
        <Style.Triggers>
            <DataTrigger Binding="{Binding EqualValuesColourConverter}" Value="False" >
                <Setter Property="Foreground" Value="Red" />
            </DataTrigger>
        </Style.Triggers>
    </Style>
</DataGridTextColumn.CellStyle>

我试图让它在两列中工作但它只会改变一种字体颜色。

有人可以帮忙吗？

Answer 1

也许您可以尝试使用在前景属性上具有触发器的样式设置列单元格样式？

http://blogs.msdn.com/b/jaimer/archive/2009/01/20/styling-microsoft-s-wpf-datagrid.aspx

Answer 2

int i = DgInvoiceLines.SelectedIndex;
            string iqty = ((DataRowView)DgInvoiceLines.SelectedItem)["Inv_Quantity"].ToString();
            string gqty = ((DataRowView)DgInvoiceLines.SelectedItem)["Grn_Quantity"].ToString();
            string iprice = ((DataRowView)DgInvoiceLines.SelectedItem)["Inv_Price"].ToString();
            string gprice = ((DataRowView)DgInvoiceLines.SelectedItem)["Grn_Price"].ToString();
            string itotal = ((DataRowView)DgInvoiceLines.SelectedItem)["Inv_Total"].ToString();
            string gtotal = ((DataRowView)DgInvoiceLines.SelectedItem)["Grn_Total"].ToString();

            DataGridCell InvQtyCell = GetCell(i, 2);
            DataGridCell GrnQtyCell = GetCell(i, 3);
            DataGridCell InvPriCell = GetCell(i, 4);
            DataGridCell GrnPriCell = GetCell(i, 5);
            DataGridCell InvTotCell = GetCell(i, 6);
            DataGridCell GrnTotCell = GetCell(i, 7);

            string InvoiceCellContentType = InvQtyCell.Content.GetType().Name.ToString();
            string GRNCellContentType = GrnQtyCell.Content.GetType().Name.ToString();
            string InvPriContentType = InvPriCell.Content.GetType().Name.ToString();
            string GrnPriContentType = GrnPriCell.Content.GetType().Name.ToString();
            string InvTotCellType = InvTotCell.Content.GetType().Name.ToString();
            string GrnTotCelType = GrnTotCell.Content.GetType().Name.ToString();

            if (iqty == gqty) 
            {
                if (InvoiceCellContentType == "TextBlock") ((TextBlock)InvQtyCell.Content).Foreground = Brushes.DarkGreen;
                else if (InvoiceCellContentType == "TextBox") ((TextBox)InvQtyCell.Content).Foreground = Brushes.DarkGreen;
                if (GRNCellContentType == "TextBlock") ((TextBlock)GrnQtyCell.Content).Foreground = Brushes.DarkGreen;
                else if (GRNCellContentType == "TextBox") ((TextBox)GrnQtyCell.Content).Foreground = Brushes.DarkGreen;
            }
            else
            {
                if (InvoiceCellContentType == "TextBlock") ((TextBlock)InvQtyCell.Content).Foreground = Brushes.Red;
                else if (InvoiceCellContentType == "TextBox") ((TextBox)InvQtyCell.Content).Foreground = Brushes.Red;
                if (GRNCellContentType == "TextBlock") ((TextBlock)GrnQtyCell.Content).Foreground = Brushes.Red;
                else if (GRNCellContentType == "TextBox") ((TextBox)GrnQtyCell.Content).Foreground = Brushes.Red;
            }

            if (iprice == gprice) 
            {
                if (InvPriContentType == "TextBlock") ((TextBlock)InvPriCell.Content).Foreground = Brushes.DarkGreen;
                else if (InvPriContentType == "TextBox") ((TextBox)InvPriCell.Content).Foreground = Brushes.DarkGreen;
                if (GrnPriContentType == "TextBlock") ((TextBlock)GrnPriCell.Content).Foreground = Brushes.DarkGreen;
                else if (GrnPriContentType == "TextBox") ((TextBox)GrnPriCell.Content).Foreground = Brushes.DarkGreen;
            }
            else
            {
                if (InvPriContentType == "TextBlock") ((TextBlock)InvPriCell.Content).Foreground = Brushes.Red;
                else if (InvPriContentType == "TextBox") ((TextBox)InvPriCell.Content).Foreground = Brushes.Red;
                if (GrnPriContentType == "TextBlock") ((TextBlock)GrnPriCell.Content).Foreground = Brushes.Red;
                else if (GrnPriContentType == "TextBox") ((TextBox)GrnPriCell.Content).Foreground = Brushes.Red;
            }

万一有人想要答案，只要在

中调用，这实际上是有效的仅

DgInvoiceLines_CellEditEnding 和 DgInvoiceLines_CurrentCellChanged 。

我在 DgInvoiceLines_SelectionChanged 中调用了它，这似乎让它表现得很奇怪。

HTH！

WPF数据网格中字体的条件格式

2 个答案: