bindingSource具体使用案例

bindingSource具体使用案例

界面如下：

using DevExpress.XtraBars.Docking; using DevExpress.XtraEditors; using NewPwrDY.DBEntity; using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms;namespace NewPwrDY { public partial class Frm_WorkOrder : XtraForm { public Frm_WorkOrder() { InitializeComponent(); this.bindingSource.DataSource = this._WorkOrderList; this.gridView.OptionsBehavior.Editable = false; this.gridView.OptionsView.ColumnAutoWidth = true; this.gridView.OptionsView.ShowColumnHeaders = true; this.gridView.OptionsView.ColumnHeaderAutoHeight = DevExpress.Utils.DefaultBoolean.True; } List _WorkOrderList = new List(); protected override void OnShown(EventArgs e) { base.OnShown(e); this.dockPanel.Dock = DockingStyle.Float; int x = 500; int y = 250; Point p = new Point(x, y); this.dockPanel.FloatLocation = p; } private void Frm_WorkOrder_Load(object sender, EventArgs e) { this.backgroundWorker.RunWorkerAsync(); } private void tsmiSearch_Click(object sender, EventArgs e) { this.gridView.ShowFindPanel(); } private void tsmiAdd_Click(object sender, EventArgs e) { if (this.dockPanel.Visibility == DockVisibility.Hidden) { this.dockPanel.Show(); } MessageBox.Show("新增", "提示："); } private void tsmiDelete_Click(object sender, EventArgs e) { MessageBox.Show("删除", "提示："); } private void tsmiEdit_Click(object sender, EventArgs e) { MessageBox.Show("编辑", "提示："); } private void tsmiSave_Click(object sender, EventArgs e) { MessageBox.Show("保存", "提示："); } private void tsmiCancel_Click(object sender, EventArgs e) { MessageBox.Show("取消", "提示："); } private void btnSave_Click(object sender, EventArgs e) { List WorkOrderList = this._WorkOrderList; MessageBox.Show("保存", "提示："); } private void btnCancel_Click(object sender, EventArgs e) { MessageBox.Show("取消", "提示："); } private void gridView_RowCellClick(object sender, DevExpress.XtraGrid.Views.Grid.RowCellClickEventArgs e) { if (e.Clicks == 2 && this.dockPanel.Visibility == DockVisibility.Hidden) { this.dockPanel.Show(); } } private void dockPanel_DockChanged(object sender, EventArgs e) { if (dockPanel.Dock.Equals(DockingStyle.Float)) { this.dockPanel.FloatForm.MinimumSize = new Size(623, 401); } } private void backgroundWorker_DoWork(object sender, DoWorkEventArgs e) { //DB_DYFDEntities _DbContext = new DB_DYFDEntities(); //Dictionary dic = new Dictionary(); //dic.Add(nameof(mes_work_order), _DbContext.mes_work_order.ToList()); //e.Result = dic; } private void backgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) { if (this.IsDisposed || e.Cancelled || e.Error != null) { return; } //Dictionary dic = e.Result as Dictionary; //if (dic != null) //{ // this._WorkOrderList = dic[nameof(mes_work_order)] as List; //} mes_work_order wo; for (int i = 0; i < 60; i++) { wo = new mes_work_order(); wo.WorkOrderNo = DateTime.Now.ToString("yyyyMMddHHmmss")+i.ToString(); wo.Seq = i; wo.ProductName = "产品" + (i + 1).ToString(); wo.ProductSpec = "规格" + (i + 1).ToString(); ; wo.Qty = i + 1; wo.FinishQty = i; wo.WorkDate = DateTime.Now; this._WorkOrderList.Add(wo); } this.bindingSource.DataSource = this._WorkOrderList; //不加下面这句话，bindingSource的Position始终未-1 this.bindingSource.ResetBindings(false); this.gridView.RefreshData(); } private void bindingSource_CurrentChanged(object sender, EventArgs e) { mes_work_order mes_work_order= this.bindingSource.Current as mes_work_order; this.tbxWorkOrderNo.DataBindings.Clear(); this.tbxWorkOrderNo.DataBindings.Add(nameof(tbxWorkOrderNo.Text), mes_work_order, nameof(mes_work_order.WorkOrderNo)); this.tbxSeq.DataBindings.Clear(); this.tbxSeq.DataBindings.Add(nameof(tbxSeq.Text), mes_work_order, nameof(mes_work_order.Seq)); this.tbxProductName.DataBindings.Clear(); this.tbxProductName.DataBindings.Add(nameof(tbxProductName.Text), mes_work_order, nameof(mes_work_order.ProductName)); this.tbxProductSpec.DataBindings.Clear(); this.tbxProductSpec.DataBindings.Add(nameof(tbxProductSpec.Text), mes_work_order, nameof(mes_work_order.ProductSpec)); this.tbxQty.DataBindings.Clear(); this.tbxQty.DataBindings.Add(nameof(tbxQty.Text), mes_work_order, nameof(mes_work_order.Qty)); this.tbxFinishQty.DataBindings.Clear(); this.tbxFinishQty.DataBindings.Add(nameof(tbxFinishQty.Text), mes_work_order, nameof(mes_work_order.FinishQty)); this.dpiWorkDate.DataBindings.Clear(); this.dpiWorkDate.DataBindings.Add(nameof(dpiWorkDate.Value), mes_work_order, nameof(mes_work_order.WorkDate)); this.tbxWorkOrderNo.DataBindings.Clear(); this.tbxWorkOrderNo.DataBindings.Add(nameof(tbxWorkOrderNo.Text), mes_work_order, nameof(mes_work_order.WorkOrderNo)); } } }

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