XamDataGrid resize star column

Question

How can I resize a * column in the XamDataGrid? In this example, I cannot resize the department column.

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MWE: MainWindow.xaml

<Window x:Class="GridPerformAutoSize.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:igWPF="http://schemas.infragistics.com/xaml/wpf"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        Title="MainWindow"
        Width="800"
        Height="450"
        mc:Ignorable="d">
    <Grid>

        <igWPF:XamDataGrid x:Name="dataGrid">
            <igWPF:XamDataGrid.FieldLayoutSettings>
                <igWPF:FieldLayoutSettings AutoGenerateFields="False" />
            </igWPF:XamDataGrid.FieldLayoutSettings>
            <igWPF:XamDataGrid.FieldLayouts>
                <igWPF:FieldLayout>
                    <igWPF:Field Name="name" />
                    <igWPF:Field Name="department" Width="*" AllowResize="True" />
                    <igWPF:Field Name="salary" />
                    <igWPF:Field Name="email" />
                </igWPF:FieldLayout>
            </igWPF:XamDataGrid.FieldLayouts>
        </igWPF:XamDataGrid>

    </Grid>
</Window>

MainWindow.xaml.cs

using System.Linq;

namespace GridPerformAutoSize
{
    public class Person
    {
        public string name { get; set; }
        public string department { get; set; }
        public string salary { get; set; }
        public string email { get; set; }
    }
    
    public partial class MainWindow
    {
        public MainWindow()
        {
            this.InitializeComponent();

            this.dataGrid.DataSource = Enumerable.Repeat(new Person() { department = "HR", email = "[email protected]", name = "John Smith", salary = "52500" }, 5);
        }
    }
}

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See how no resizing cursor appears between the department and salary columns:

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What do I have to do to be able to resize a * column?

How can I have one column use all available space but still allow resizing?

Answer 1

Setting the department field to Width="*" prevents it from resizing. To enable resizing of this field it is necessary just remove the width setting in this column.

<igWPF:XamDataGrid x:Name="dataGrid" AutoFit="True">
    <igWPF:XamDataGrid.FieldLayoutSettings>
        <igWPF:FieldLayoutSettings AutoGenerateFields="False" AutoFitMode="Always" />
    </igWPF:XamDataGrid.FieldLayoutSettings>
    <igWPF:XamDataGrid.FieldLayouts>
        <igWPF:FieldLayout>
            <igWPF:Field Name="name" />
            <igWPF:Field Name="department" />
            <igWPF:Field Name="salary" />
            <igWPF:Field Name="email" />
        </igWPF:FieldLayout>
    </igWPF:XamDataGrid.FieldLayouts>
</igWPF:XamDataGrid>

You can also try to set AutoFit="True" whether the cells and labels will be sized to exactly without the need to scroll.

Question: How can I have one column use all available space but still allow resizing?

Answer: You can set Width="Auto" for all columns except the one you want to be using all available space but still allow resizing. For this column don't set the Width property.