Telerik RadGridView 问题

发布于 2024-08-29 14:01:49 字数 1687 浏览 11 评论 0原文

我在我的项目中使用 Telerik RadGridView。我想在列中显示图像。

                GridViewImageColumn col1 = new GridViewImageColumn();
                col1.Width = 100;
                col1.DataMemberBinding = new Binding("id");
                col1.Header = "PhotoByConverter";
                col1.DataMemberBinding.Converter = new ThumbnailConverter();
                grid.Columns.Add(col1);


                GridViewDataColumn col2 = new GridViewDataeColumn();
                col2.Width = 100;
                col2.DataMemberBinding = new Binding("firstName");
                col2.Header = "Person name";
                grid.Columns.Add(col2);

                Grid.ItemsSource=DataTable;

第一列不工作,但第二列工作正常。我使用 Converter 来处理下面显示的图像,

    public class ThumbnailConverter : IValueConverter
    {

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
                    IEnumerable<thumbNail> result = from n in thumbnails
                                        where n.personID == value.ToString()
                                        select n;


        if (result != null && result.First().thumbnail != null)
        {
            return result.First().thumbnail.file;
        }
        else
        {
            return null;
        }
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        throw new Exception("The method or operation is not implemented.");
    }
   }

我通过人的 id 缩略图找到并将其设置为 GridViewImageColumn 的数据。我用调试器检查了转换器工作正常。我无法理解为什么它不起作用。 有什么想法吗?

I am using Telerik RadGridView in my project. I want to show image in column.

                GridViewImageColumn col1 = new GridViewImageColumn();
                col1.Width = 100;
                col1.DataMemberBinding = new Binding("id");
                col1.Header = "PhotoByConverter";
                col1.DataMemberBinding.Converter = new ThumbnailConverter();
                grid.Columns.Add(col1);


                GridViewDataColumn col2 = new GridViewDataeColumn();
                col2.Width = 100;
                col2.DataMemberBinding = new Binding("firstName");
                col2.Header = "Person name";
                grid.Columns.Add(col2);

                Grid.ItemsSource=DataTable;

First column not wokrs but second works fine. I use Converter for image shown below

    public class ThumbnailConverter : IValueConverter
    {

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
                    IEnumerable<thumbNail> result = from n in thumbnails
                                        where n.personID == value.ToString()
                                        select n;


        if (result != null && result.First().thumbnail != null)
        {
            return result.First().thumbnail.file;
        }
        else
        {
            return null;
        }
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        throw new Exception("The method or operation is not implemented.");
    }
   }

I found by id thumbnail of person and set it like data for GridViewImageColumn. I checked with Debuger conveter works properly. I can't undesrtand why it doesn't work.
Any ideas?

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柠檬色的秋千 2024-09-05 14:01:49

我找到了这些问题的解决方案。唯一需要的是使用方括号中的属性名称

    GridViewImageColumn col1= new GridVeiwImageColumn();
    col1.DataMemberBinding = new Binding("[id]");

I found solution for these problem. Only thing that is require is use Property name in square brackets

    GridViewImageColumn col1= new GridVeiwImageColumn();
    col1.DataMemberBinding = new Binding("[id]");
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