在下拉列表中绑定数据 [英] bind data in dropdown

问题描述

如何在数据库的下拉列表中绑定数据

How to bind data in drop-down from the database

推荐答案

在发布很容易发生的问题之前，您应该先尝试自己的研究从你的课本，课程笔记或谷歌搜索中回答。



看看这里 http://stackoverflow.com/questions/6859248/binding-data-from-the-database-to-a-dropdown -list-in-net [ ^ ]

You should really attempt to do your own research first before posting questions that could very easily have been answered from your text book, course notes or a google search.

Have a look here http://stackoverflow.com/questions/6859248/binding-data-from-the-database-to-a-dropdown-list-in-net[^]

string SqlConnect = System.Configuration.ConfigurationManager.ConnectionStrings["Connect"].ConnectionString;
                SqlConnection Sqlconn = new SqlConnection(SqlConnect);
                SqlCommand sqlcomm = new SqlCommand("select * from Category", Sqlconn);
                
                Sqlconn.Open();
                SqlDataReader dr = sqlcomm.ExecuteReader();
                if (dr.HasRows)
                {
                   
                    DropDownList1.DataSource = dr;
                    DropDownList1.DataTextField = "CatName";
                    DropDownList1.DataValueField = "Catid";
                    DropDownList1.DataBind();
                    ListItem c = new ListItem("Select Category", "0");
                    DropDownList1.Items.Insert(0, c);
                    
                    dr.Close();
                    Sqlconn.Close();
                }

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