Question

我需要一个控件，允许我从用户文件系统中选择文件或文件夹（或两者）。是否有某种控制可用于现有屏幕和新屏幕？

Answer 1

我已经将文件和文件夹选择器组合在同一个控件中，但我认为这很容易让你理解如何做任何一个。我使用SOOrderEntry的扩展我的例子，但它对于新屏幕或其他现有屏幕的原则是相同的。

在PXDataSource元素中，添加Datatrees和PXTreeDataMember元素，如下所示：

<px:PXDataSource ID="ds" runat="server" Visible="True" Width="100%" TypeName="PX.Objects.SO.SOOrderEntry" PrimaryView="Document">
        <DataTrees>
            <px:PXTreeDataMember TreeView="FilesTree" TreeKeys="FileKey" />
        </DataTrees>
</px:PXDataSource>

在formView元素中，添加PXTreeSelector：

<px:PXFormView ID="PXFormView2" runat="server" DataSourceID="ds" Style="z-index: 100" Width="100%" DataMember="Document" Caption="Order Summary"
    NoteIndicator="True" FilesIndicator="True" LinkIndicator="True" EmailingGraph="PX.Objects.CR.CREmailActivityMaint,PX.Objects"
    ActivityIndicator="True" ActivityField="NoteActivity" DefaultControlID="edOrderType" NotifyIndicator="True"
    TabIndex="14900">
    <Template>
        <px:PXTreeSelector runat="server" TreeDataSourceID="ds" TreeDataMember="FilesTree" InitialExpandLevel="0" MinDropWidth="413" PopulateOnDemand="True" ShowRootNode="False" AllowEditValue="True" SelectOnFocus="False" DataField="ParentFolder" ID="edPathSelector">
            <DataBindings>
                <px:PXTreeItemBinding DataMember="FilesTree" TextField="FileName" ValueField="FilePath" DescriptionField="FilePath" ImageUrlField="Icon" />
            </DataBindings>
        </px:PXTreeSelector>
    </Template>
</px:PXFormView>

这是我的DAC和图表扩展。如您所见，该图几乎只将.NET函数调用为可枚举的文件和文件夹。要专门控制文件夹或文件，您只需要返回正确的元素。

using PX.Data;
using PX.Web.UI;
using System;
using System.Collections;
using System.IO;
using System.Linq;

namespace PX.Objects.SO
{
    [Serializable]
    public class RowFilesTree : IBqlTable
    {
        [PXString(IsKey = true, IsUnicode = true)]
        [PXUIField(DisplayName = "FileKey")]
        public string FileKey { get; set; }
        public class fileKey : IBqlField { }


        [PXString]
        [PXUIField(DisplayName = "Path")]
        public string FilePath { get; set; }
        public class filePath : IBqlField { }


        [PXString]
        [PXUIField(DisplayName = "Name")]
        public string FileName { get; set; }
        public class fileName : IBqlField { }

        [PXString(250)]
        public virtual string Icon { get; set; }
        public abstract class icon : IBqlField {}
    }


    public class SOOrderEntry_Extension : PXGraphExtension<SOOrderEntry>
    {
        public PXSelect<RowFilesTree> FilesTree;
        protected virtual IEnumerable filesTree([PXString]string FilePath)
        {
            if (string.IsNullOrEmpty(FilePath))
            {
                var folders = Directory.GetLogicalDrives();
                foreach (var folder in folders)
                {
                    yield return new RowFilesTree()
                    {
                        FileKey = folder.Replace(':', '>'),
                        FileName = folder,
                        FilePath = folder,
                        Icon = Sprite.Tree.GetFullUrl(Sprite.Tree.Folder)
                    };
                }
            }
            else
            {
                var folders = new string[0];
                var files = new string[0];

                try
                {
                    var decode = FilePath.Replace('>', ':');
                    folders = Directory.GetDirectories(decode);
                    files = Directory.GetFiles(decode);

                }
                catch
                {
                }

                foreach (var folder in folders)
                {
                    yield return new RowFilesTree()
                    {
                        FileKey = folder.Replace(':', '>'),
                        FileName = Path.GetFileName(folder),
                        FilePath = folder,
                        Icon = Sprite.Tree.GetFullUrl(Sprite.Tree.Folder)
                    };
                }


                foreach (var file in files)
                {
                    yield return new RowFilesTree()
                    {
                        FileKey = file.Replace(':', '>'),
                        FileName = Path.GetFileName(file),
                        FilePath = file,
                        Icon = Sprite.Tree.GetFullUrl(Sprite.Tree.Leaf)
                    };
                }
            }
        }
    }
}

以下是最终结果：

如何在屏幕上添加文件/文件夹选择器？

1 个答案: