categorylist.aspx.cs

一个简单的Demo

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Surance.DB4ODAL;
using Surance.DBUtility;
using Db4objects.Db4o;

public partial class Back_CategoryList : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            BindGrid();
        }
    }

    private void BindGrid()
    {
        IObjectContainer db = DB4OHelper.DB;
        try
        {
            Category c = new Category(db);
            GridView1.DataSource = c.GetAll();
            GridView1.DataBind();
        }
        catch
        {
        }
        finally
        {
            db.Close();
        }
    }
    protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        int index = Convert.ToInt32(e.CommandArgument.ToString().Trim());
        string module = GridView1.Rows[index].Cells[0].Text.Trim();
        string name = GridView1.Rows[index].Cells[1].Text.Trim();
        IObjectContainer db = DB4OHelper.DB;
        Category c = new Category(db);
        c.Module = module;
        c.Name = name;
        try
        {
            Category c2 = c.GetOne(c);
            if (c2 != null)
            {
                c.Del(c2);
            }
        }
        catch
        {
        }
        finally
        {
            db.Close();
        }
        BindGrid();
    }
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            if (e.Row.RowIndex > -1)
            {
                LinkButton b = (LinkButton)e.Row.Cells[2].Controls[0];
                b.Attributes.Add("onClick", "javascript:return confirm('Are you sure to delete？');");
            }
        }
    }
}