首页 > 代码库 > 浅谈DevExpress<二>:设计一个完整界面(2)
浅谈DevExpress<二>:设计一个完整界面(2)
下面来把剩下的工作做完,换肤功能昨天已近讨论过,今天就不重复了。首先建立三个全局变量,一个存放文件路径,一个存放数据,一个存放过滤条件。
string DBFileName; DataView dataView; string[] filter = new string[3];
取得数据并绑定到表格中:
DBFileName = DevExpress.Utils.FilesHelper.FindingFileName(Application.StartupPath, "Products.xml"); if (!string.IsNullOrEmpty(DBFileName)) { DataSet dt = new DataSet(); dt.ReadXml(DBFileName); gridControl1.DataSource = dataView = dt.Tables[0].DefaultView; }
给imageList添加一些图标(随便找的):
将工具栏中的种类项与图标和表格关联起来:
string[] s = new string[] { "Beverages","Condiments","Confections","Dairy Products", "Grains/Cereals","Meat/Poultry","Produce","Seafood"}; for (int i = 0; i < s.Length; i++) repositoryItemImageComboBox1.Items.Add(new ImageComboBoxItem(s[i], i + 1, i)); RepositoryItem ri = repositoryItemImageComboBox1.Clone() as RepositoryItem; colCategoryID.ColumnEdit = ri;
修改种类项的属性:
this.repositoryItemImageComboBox1.SmallImages = this.imageList1;
此时运行后界面应该是这样的:
下面添加条件筛选的功能,首先定义一个设置筛选的方法:
private void SetFilter() { string f = ""; foreach (string s in filter) { if (f != "" && (!string.IsNullOrEmpty(s))) { f += " And"; } if (!string.IsNullOrEmpty(s)) { f += s; } dataView.RowFilter = (f == "") ? "No Filter" : "Filter: " + f; iRecords.Caption = "Records: " + dataView.Count.ToString(); } }
然后定义3种点击事件,一个是筛选checkBox,一个是小于所选日期,一个选择种类:
private void discontinued_EditValueChanged(object sender, EventArgs e) { if (discontinued.EditValue =http://www.mamicode.com/= null) filter[0] = ""; else filter[0] = string.Format("[Discontinued] = {0}", discontinued.EditValue.ToString()); SetFilter(); } private void lastOrder_EditValueChanged(object sender, EventArgs e) { if (lastOrder.EditValue =http://www.mamicode.com/= null) { filter[1] = ""; } else { filter[1] = string.Format("[LastOrder] < #{0}#", StringDataToFormat(lastOrder.EditValue.ToString())); } SetFilter(); } private static string StringDataToFormat(string s) { try { DateTime dt = DateTime.Parse(s); return string.Format("{0}/{1}/{2}", dt.Month.ToString(), dt.Day.ToString(), dt.Year.ToString()); } catch { return s; } } private void categories_EditValueChanged(object sender, EventArgs e) { if (categories.EditValue =http://www.mamicode.com/= null) filter[2] = ""; else filter[2] = string.Format("[CategoryID] = {0}",categories.EditValue.ToString()); SetFilter(); }
此时效果如下:
此时界面基本完成,剩下的就是加上一些边边角角的东西,比如设置清除筛选条件按钮:
private void iClearFilter_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e) { discontinued.EditValue = null; lastOrder.EditValue = null; categories.EditValue = null; }
然后总体效果图就出来了
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