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POConditional formatting of the font in a WPF Datagrid
 

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  1. POConditional formatting of the font in a WPF Datagrid
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    <p>I have a WPF Datagrid populated using a Dataset. I am trying to change the font colour of the data in two columns. I have it working using </p> <pre><code>REMOVED OLD CODE </code></pre> <p>But it isn't holding the colours very well especially when there is scrolling on the grid. It is also slow.</p> <p>Is it possible to do this using an <code>IValueCoverter</code> or is there some other more efficient way to achieve this?</p> <p><strong>EDIT</strong> </p> <p>I have tried to take a new approach to this problem. I have created a class to return a bool and then use that bool to determine whether the font will be green or red.</p> <p>CLASS</p> <pre><code>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) &amp;&amp; (iprice == gprice) &amp;&amp; (itotal == gtotal)) fontColor = true; else fontColor = false; } } </code></pre> <p>CALL TO CLASS</p> <pre><code> 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); </code></pre> <p>XAML </p> <pre><code>&lt;DataGridTextColumn Width="61" Header="Inv_Quantity" Binding="{Binding Inv_Quantity}"&gt; &lt;DataGridTextColumn.CellStyle&gt; &lt;Style TargetType="{x:Type DataGridCell}"&gt; &lt;Setter Property="Foreground" Value="Green"/&gt; &lt;Style.Triggers&gt; &lt;DataTrigger Binding="{Binding EqualValuesColourConverter}" Value="False" &gt; &lt;Setter Property="Foreground" Value="Red" /&gt; &lt;/DataTrigger&gt; &lt;/Style.Triggers&gt; &lt;/Style&gt; &lt;/DataGridTextColumn.CellStyle&gt; </code></pre> <p><br> </p> <p>I am trying to get it to work in two columns but it will only change the font colour in one.</p> <p>Can anyone help? </p>
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