我有一个简单的数据结构类：

public class Client {
    public String name {set; get;}
    public String claim_number {set; get;}
}

对此我送入一个DataGrid ：

this.data_grid_clients.ItemSource = this.clients;

我想更改列标题。即：claim_number以“索赔数”。我知道这是可以做到，当你手动创建通过执行类似的列：

this.data_grid_clients.Columns[0].Header = "Claim Number"

然而， Columns属性为空生成自动的列时。有没有办法重命名列，还是我不得不手动生成列？

Answer 1:

您可以使用DisplayNameAttribute和更新你的代码的某些部分，以达到你想要的东西。

你必须做的第一件事是，增加一个[DisplayName("")]在客户端类的属性。

public class Client {
    [DisplayName("Column Name 1")]
    public String name {set; get;}

    [DisplayName("Clain Number")]
    public String claim_number {set; get;}
}

你XAML代码的更新，添加事件处理程序AutoGenerationColumn事件。

<dg:DataGrid AutoGenerateColumns="True" AutoGeneratingColumn="OnAutoGeneratingColumn">
</dg:DataGrid>

最后，一个方法添加到代码隐藏。

private void OnAutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
    var displayName = GetPropertyDisplayName(e.PropertyDescriptor);

    if (!string.IsNullOrEmpty(displayName))
    {
        e.Column.Header = displayName;
    }

}

public static string GetPropertyDisplayName(object descriptor)
{
    var pd = descriptor as PropertyDescriptor;

    if (pd != null)
    {
        // Check for DisplayName attribute and set the column header accordingly
        var displayName = pd.Attributes[typeof(DisplayNameAttribute)] as DisplayNameAttribute;

        if (displayName != null && displayName != DisplayNameAttribute.Default)
        {
            return displayName.DisplayName;
        }

    }
    else
    {
        var pi = descriptor as PropertyInfo;

        if (pi != null)
        {
            // Check for DisplayName attribute and set the column header accordingly
            Object[] attributes = pi.GetCustomAttributes(typeof(DisplayNameAttribute), true);
            for (int i = 0; i < attributes.Length; ++i)
            {
                var displayName = attributes[i] as DisplayNameAttribute;
                if (displayName != null && displayName != DisplayNameAttribute.Default)
                {
                    return displayName.DisplayName;
                }
            }
        }
    }

    return null;
}

Answer 2:

漂亮的答案

您可以修改Header自动生成DataGridColumn头中的AutoGeneratingColumn事件，在那里你可以访问DisplayNameAttribute

Client.cs

public class Client
{
    [DisplayName("Name")]
    public String name { set; get; }

    [DisplayName("Claim Number")]
    public String claim_number { set; get; }
}

的.xaml

<DataGrid ItemSource="{Binding Clients}"
          AutoGenerateColumns="True"
          AutoGeneratingColumn="DataGrid_AutoGeneratingColumn" />

.xaml.cs

// This snippet can be used if you can be sure that every
// member will be decorated with a [DisplayNameAttribute]
private void DataGrid_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
    => e.Column.Header = ((PropertyDescriptor)e.PropertyDescriptor).DisplayName;

// This snippet is much safer in terms of preventing unwanted
// Exceptions because of missing [DisplayNameAttribute].
private void DataGrid_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
    if (e.PropertyDescriptor is PropertyDescriptor descriptor)
    {
        e.Column.Header = descriptor.DisplayName ?? descriptor.Name;
    }
}

Answer 3:

您可以使用AutoGeneratingColumns事件。

private void dataGridAutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
  if (e.PropertyName.StartsWith("MyColumn")
    e.Column.Header = "Anything I Want";
}

Answer 4:

我重构EKK以更短的和ReSharper的兼容的解决方案了答案：

public static string GetPropertyDisplayName(object descriptor)
{
   var propertyDescriptor = descriptor as PropertyDescriptor;
   if (propertyDescriptor != null)
   {
      var displayName = propertyDescriptor.Attributes[typeof(DisplayNameAttribute)] as DisplayNameAttribute;
      if (displayName != null && !Equals(displayName, DisplayNameAttribute.Default))
      {
         return displayName.DisplayName;
      }
   }
   else
   {
      var propertyInfo = descriptor as PropertyInfo;
      if (propertyInfo != null)
      {
         var attributes = propertyInfo.GetCustomAttributes(typeof(DisplayNameAttribute), true);
         foreach (object attribute in attributes)
         {
            var displayName = attribute as DisplayNameAttribute;
            if (displayName != null && !Equals(displayName, DisplayNameAttribute.Default))
            {
               return displayName.DisplayName;
            }
         }
      }
   }
   return null;
}

Answer 5:

简短的回答

您可以修改Header自动生成DataGridColumn在头AutoGeneratingColumn事件。

的.xaml

<DataGrid ItemSource="{Binding Clients}"
          AutoGenerateColumns="True"
          AutoGeneratingColumn="DataGrid_AutoGeneratingColumn" />

.xaml.cs

private void DataGrid_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
    switch (e.Name)
    {
        case nameof(Client.name):
            e.Column.Header = "Name";
            break;

        case nameof(Client.claim_number):
            e.Column.Header = "Claim Number";
            break;
    }
}

文章来源: How do you rename DataGrid columns when AutoGenerateColumns = True?