ASP.NET中如何动态生成模板列

最新推荐文章于 2013-08-29 16:46:10 发布

原创最新推荐文章于 2013-08-29 16:46:10 发布 · 1.3k 阅读

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#asp.net #datagrid #class

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该博客主要围绕ASP.NET展开，实现了DataGrid的打印与导出功能。通过创建实现ITemplate接口的类来分别处理打印和导出操作，还包含清空DataGrid列以及创建按专家打印的DataGrid等功能，展示了相关代码的具体实现。

/// <summary>
/// 实现ITemplate接口，用来打印
/// </summary>
public class ColumnTemplate : ITemplate
{
public void InstantiateIn(Control container)
{
   LinkButton lb = new LinkButton();
   lb.Text = "打印";
   lb.CommandName = "Print";
   container.Controls.Add(lb);
}
}
/// <summary>
/// 实现ITemplate接口，用来导出
/// </summary>
public class ColumnTemplateExport : ITemplate
{
public void InstantiateIn(Control container)
{
   LinkButton lb = new LinkButton();
   lb.Text = "导出";
   lb.CommandName = "Export";
   container.Controls.Add(lb);
}
}

/// <summary>
/// 清空GRID的COLUMN
/// </summary>
/// <param name="vardg"></param>
private static void RefreshGrid(DataGrid vardg)
{
   vardg.Columns.Clear();

   BoundColumn dc = new BoundColumn();
   dc.HeaderText = "ID";
   dc.HeaderStyle.HorizontalAlign = HorizontalAlign.Center;
   dc.DataField = "ID";
   dc.Visible = false;
   dc.ItemStyle.HorizontalAlign = HorizontalAlign.Center;
   vardg.Columns.AddAt(0,dc);

   dc = new BoundColumn();
   dc.HeaderText = "序号";
   dc.HeaderStyle.Wrap = false;
   dc.HeaderStyle.Width = 30;
   dc.HeaderStyle.HorizontalAlign = HorizontalAlign.Center;
   dc.ItemStyle.HorizontalAlign = HorizontalAlign.Center;
   vardg.Columns.AddAt(1,dc);
}

/// <summary>
/// 创建按专家打印的GRID
/// </summary>
/// <param name="vardg"></param>
private static void CreateExpertDataGrid(DataGrid vardg)
{
RefreshGrid(vardg);

   BoundColumn dc = new BoundColumn();
   dc.HeaderText = "专家姓名";
   dc.HeaderStyle.Wrap = false;
   dc.HeaderStyle.HorizontalAlign = HorizontalAlign.Center;
   dc.DataField = "EXPERT_NAME";
   dc.SortExpression = "EXPERT_NAME";
   dc.ItemStyle.HorizontalAlign = HorizontalAlign.Center;
   vardg.Columns.AddAt(2,dc);

   dc = new BoundColumn();
   dc.HeaderText = "所属医院";
   dc.HeaderStyle.Wrap = false;
   dc.HeaderStyle.HorizontalAlign = HorizontalAlign.Center;
   dc.DataField = "HOSPITAL";
   dc.SortExpression = "HOSPITAL";
   vardg.Columns.AddAt(3,dc);

   TemplateColumn tc = new TemplateColumn();
   tc.ItemTemplate = new ColumnTemplate();
   tc.HeaderText = "打印";
   dc.HeaderStyle.Wrap = false;
   tc.HeaderStyle.HorizontalAlign = HorizontalAlign.Center;
   tc.ItemStyle.HorizontalAlign = HorizontalAlign.Center;
   tc.HeaderStyle.Width = 30;
   vardg.Columns.AddAt(4,tc);

   tc = new TemplateColumn();
   tc.ItemTemplate = new ColumnTemplateExport();
   tc.HeaderText = "导出";
   dc.HeaderStyle.Wrap = false;
   tc.HeaderStyle.HorizontalAlign = HorizontalAlign.Center;
   tc.ItemStyle.HorizontalAlign = HorizontalAlign.Center;
   tc.HeaderStyle.Width = 30;
   vardg.Columns.AddAt(5,tc);
}