#region
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using System;
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using System.ComponentModel;
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using System.IO;
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using System.Windows.Forms;
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using CSFrameworkV5.Common;
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using CSFrameworkV5.Core;
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using CSFrameworkV5.Interfaces;
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///*************************************************************************/
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///*
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///* 文件名 ：ucAttachment.cs
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///* 程序说明 : 附件管理自定义控件
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///* 这个控件只是个载体, 具体业务由实现IAttachmentStorage接口的类完成.
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///* 原创作者 ：www.csframework.com
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///*
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///* Copyright 2006-2021 C/S框架网 www.csframework.com
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///*
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///**************************************************************************/
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#endregion
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namespace CSFrameworkV5.Library.UserControls
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{
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/// <summary>
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/// 提交附件资料的事件
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/// </summary>
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/// <param name="data">附件资料</param>
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public delegate void PostAttachmentData(object data);
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/// <summary>
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/// 附件管理自定义控件.
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/// </summary>
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public partial class ucAttachment : UserControl
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{
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//是否立即提交数据
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private bool _ImmediatelyPost;
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private PostAttachmentData _OnPostAttachmentData;
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//附件管理存储策略
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private IAttachmentStorage _Storage;
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public ucAttachment()
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{
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InitializeComponent();
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}
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/// <summary>
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/// 即时提交数据
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/// </summary>
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[DefaultValue(false)]
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[Description("即时提交数据")]
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public bool ImmediatelyPost
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{
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get => _ImmediatelyPost;
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set => _ImmediatelyPost = value;
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}
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/// <summary>
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/// 附件管理策略
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/// </summary>
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public IAttachmentStorage StorateStrategy
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{
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get => _Storage;
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set => _Storage = value;
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}
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private void btnAdd_Click(object sender, EventArgs e)
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{
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var dlg = new OpenFileDialog();
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if (DialogResult.OK == dlg.ShowDialog())
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{
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//检查文件名是否存在
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if (_Storage.Exists(Path.GetFileName(dlg.FileName)))
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{
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Msg.Warning("附件已经存在！");
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}
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else
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{
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_Storage.AddFile(dlg.FileName);
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if (_ImmediatelyPost && _OnPostAttachmentData != null)
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_OnPostAttachmentData(_Storage.AttachmentStorage);
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}
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}
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}
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private void btnDel_Click(object sender, EventArgs e)
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{
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if (gvSummary.IsValidRowHandle(gvSummary.FocusedRowHandle))
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{
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if (Msg.AskQuestion("确定要删除此附件吗?"))
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{
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var fileName =
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gvSummary.GetDataRow(gvSummary.FocusedRowHandle)[
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"FileName"].ToStringEx();
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_Storage.DeleteFile(fileName);
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if (_ImmediatelyPost && _OnPostAttachmentData != null)
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_OnPostAttachmentData(_Storage.AttachmentStorage);
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}
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}
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else
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{
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Msg.Warning("请选择一个附件！");
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}
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}
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private void btnSaveAs_Click(object sender, EventArgs e)
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{
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if (gvSummary.IsValidRowHandle(gvSummary.FocusedRowHandle))
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{
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var fileName =
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gvSummary.GetDataRow(gvSummary.FocusedRowHandle)["FileName"]
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.ToStringEx();
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_Storage.SaveAs(fileName);
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}
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else
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{
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Msg.Warning("请选择一个附件！");
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}
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}
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/// <summary>
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/// 绑定表格控件的数据源
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/// </summary>
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public void DoBindDataSource()
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{
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if (_Storage != null)
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{
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gcSummary.DataSource = null;
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gcSummary.DataSource = _Storage.AttachmentStorage;
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}
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}
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/// <summary>
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/// 取消修改
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/// </summary>
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public void DoRejectChanges()
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{
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_Storage.AttachmentStorage.RejectChanges();
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DoBindDataSource();
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}
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/// <summary>
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/// 设置按钮状态
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/// </summary>
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/// <param name="currentState">按钮状态</param>
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public void DoSetButtonState(UpdateType currentState)
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{
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var onEditMode = currentState == UpdateType.Modify ||
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currentState == UpdateType.Add;
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btnAdd.Enabled = onEditMode;
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btnDel.Enabled = onEditMode;
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gvSummary.OptionsBehavior.Editable = onEditMode;
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menuDrop.Enabled = onEditMode; //删除
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//不受状态控制
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btnSaveAs.Enabled = true; //另存为
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menuOpen.Enabled = true;
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menuSaveAs.Enabled = true;
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}
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private void menuOpen_Click(object sender, EventArgs e)
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{
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if (gvSummary.IsValidRowHandle(gvSummary.FocusedRowHandle))
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{
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var fileName =
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gvSummary.GetDataRow(gvSummary.FocusedRowHandle)["FileName"]
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.ToStringEx();
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_Storage.OpenFile(fileName);
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}
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else
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{
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Msg.Warning("请选择一个附件！");
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}
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}
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/// <summary>
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/// 保存附件数据
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/// </summary>
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[Description("保存附件数据")]
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public event PostAttachmentData OnPostAttachmentData
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{
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add => _OnPostAttachmentData += value;
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remove => _OnPostAttachmentData -= value;
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}
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private void ucAttachment_Load(object sender, EventArgs e)
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{
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//
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}
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private void ucAttachment_SizeChanged(object sender, EventArgs e)
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{
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colFileTitle.Width = Width - colIconSmall.Width - 15;
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}
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}
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}
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