#region
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using System.Data;
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using System.Drawing;
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using CSFrameworkV5.Business;
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using CSFrameworkV5.Common;
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using CSFrameworkV5.Core;
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using DevExpress.XtraGrid.Views.Base;
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using DevExpress.XtraGrid.Views.Grid;
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#endregion
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namespace CSFrameworkV5.Library
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{
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/// <summary>
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/// 表格编辑基类窗体
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/// </summary>
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public partial class frmBaseGridEditForm : frmBaseChild, IPrintableForm
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{
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/// <summary>
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/// 数据字典业务逻辑
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/// </summary>
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protected bllBaseDataDict
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_BLL = new bllNullObjectDataDict(); //临时实例
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protected ISummaryView _SummaryView;
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public frmBaseGridEditForm()
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{
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InitializeComponent();
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}
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public virtual void DoCancel(IButtonInfo sender)
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{
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if (Msg.AskQuestion("确定要取消修改吗?"))
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{
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var dt = _SummaryView.DataSource as DataTable;
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dt.RejectChanges();
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_SummaryView.RefreshDataSource();
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}
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}
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/// <summary>
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/// 保存数据
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/// </summary>
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/// <param name="sender"></param>
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public virtual void DoSave(IButtonInfo sender)
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{
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_FocusEditor.Focus(); //跳动焦点，使当前单元格的值写入数据源
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if (_SummaryView.RowCount == 0)
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{
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Msg.Warning("没有数据！");
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}
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else
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{
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if (!ValidatingData()) return;
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try
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{
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frmWaitingEx.ShowMe(this);
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var dt = _SummaryView.DataSource as DataTable;
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var changes = dt.GetChanges();
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if (changes != null)
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{
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if (changes.Rows.Count > 0) _BLL.Update(changes);
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dt.AcceptChanges();
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_SummaryView.RefreshDataSource();
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Msg.ShowInformation("保存成功！");
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}
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else
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{
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Msg.Warning("您没有修改数据！");
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}
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}
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finally
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{
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frmWaitingEx.HideMe(this);
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}
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}
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}
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/// <summary>
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/// 初始化数据窗体的按钮
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/// </summary>
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public override void InitButtons()
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{
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base.InitButtons();
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Buttons.AddRange(GetPrintableButtons());
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var b = new IButtonInfo[2];
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b[0] = ToolbarRegister.CreateButton(ButtonNameList.btnSave, "保存",
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ToolBarGroup.数据操作,
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Globals.LoadBitmap("32_Save.png"), new Size(57, 28), true, true,
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DoSave);
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b[1] = ToolbarRegister.CreateButton(ButtonNameList.btnCancel,
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"取消修改", ToolBarGroup.数据操作,
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Globals.LoadBitmap("32_Cancel.png"), new Size(57, 28), true,
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true, DoCancel);
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Buttons.AddRange(b);
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}
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/// <summary>
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/// 检查输入完整性
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/// </summary>
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/// <returns></returns>
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protected virtual bool ValidatingData()
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{
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return true;
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}
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#region IPrintableForm 成员
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/// <summary>
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/// 打印操作按钮
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/// </summary>
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/// <returns></returns>
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public IButtonInfo[] GetPrintableButtons()
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{
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var b = new IButtonInfo[1];
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if (ButtonAuthorized(ButtonAuthority.PRINT))
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b[0] = ToolbarRegister.CreateButton(ButtonNameList.btnPrint,
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"预览", ToolBarGroup.打印功能,
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Globals.LoadBitmap("32_Print.png"), new Size(57, 28), true,
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true, DoPrint);
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return b;
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}
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/// <summary>
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/// 打印报表
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/// </summary>
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/// <param name="button"></param>
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public virtual void DoPrint(IButtonInfo button)
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{
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}
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#endregion
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#region 控制表格主键列不能修改,新增的记录可以修改
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/// <summary>
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/// 控制表格主键列不能修改,新增的记录可以修改
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/// </summary>
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/// <param name="view"></param>
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protected virtual void HandlePKColumn(GridView view)
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{
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view.FocusedColumnChanged += OnView_FocusedColumnChanged;
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view.FocusedRowChanged += OnView_FocusedRowChanged;
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view.RowCellStyle += OnView_RowCellStyle;
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}
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private void OnView_FocusedColumnChanged(object sender,
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FocusedColumnChangedEventArgs e)
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{
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var view = sender as GridView;
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view.OptionsBehavior.Editable = true;
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if (e.FocusedColumn == view.Columns[_BLL.KeyFieldName])
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{
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var R = view.GetFocusedDataRow();
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if (R != null)
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//不支持在表格内修改已保存记录主键的值，新增的记录可以修改
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view.OptionsBehavior.Editable =
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R.RowState == DataRowState.Detached ||
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R.RowState == DataRowState.Added;
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}
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}
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private void OnView_FocusedRowChanged(object sender,
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FocusedRowChangedEventArgs e)
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{
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var view = sender as GridView;
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view.OptionsBehavior.Editable = true;
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if (view.FocusedColumn == view.Columns[_BLL.KeyFieldName])
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{
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var R = view.GetFocusedDataRow();
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if (R != null)
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//不支持在表格内修改已保存记录主键的值，新增的记录可以修改
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view.OptionsBehavior.Editable =
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R.RowState == DataRowState.Detached ||
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R.RowState == DataRowState.Added;
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}
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}
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private void OnView_RowCellStyle(object sender, RowCellStyleEventArgs e)
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{
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//设置背景色
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if (e.Column == (sender as GridView).Columns[_BLL.KeyFieldName])
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{
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var R = (sender as GridView).GetFocusedDataRow();
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if (R.RowState == DataRowState.Detached ||
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R.RowState == DataRowState.Added)
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e.Appearance.BackColor = Color.Gainsboro;
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else
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e.Appearance.BackColor = Color.Gainsboro;
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}
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}
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#endregion
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}
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}
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