ComboBoxEdit combo = new ComboBoxEdit(); var coll = combo.Properties.Items; coll.BeginUpdate(); try { var list :// list集合 var item= new ComboBoxItem { Key = "-1", Value = "请选择" }; coll.Add(item); coll.AddRange(list); //批量添加 cmb.Selecte…
demo 的实现图 下边是步骤和代码 1定义 时钟事件,定时的增加进度条的增量. 2: 添加进度条 3;定义字段属性 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; usin…