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  • ado.net操作数据库

     

    //删除
        protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
            sqlcon = new SqlConnection(strCon);
            sqlcom = new SqlCommand(sqlstr,sqlcon);
            sqlcon.Open();
            sqlcom.ExecuteNonQuery();
            sqlcon.Close();
            bind();
        }

    //更新
        protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            sqlcon = new SqlConnection(strCon);
            string sqlstr = "update 表 set 字段1='"
                + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"
                + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"
                + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"
                + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
            sqlcom=new SqlCommand(sqlstr,sqlcon);
            sqlcon.Open();
            sqlcom.ExecuteNonQuery();
            sqlcon.Close();
            GridView1.EditIndex = -1;
            bind();
        }

    //取消
        protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
            GridView1.EditIndex = -1;
            bind();
        }

    //绑定
        public void bind()
        {
            string sqlstr = "select * from 表";
            sqlcon = new SqlConnection(strCon);
            SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
            DataSet myds = new DataSet();
            sqlcon.Open();
            myda.Fill(myds, "表");
            GridView1.DataSource = myds;
            GridView1.DataKeyNames = new string[] { "id" };//主键
            GridView1.DataBind();
            sqlcon.Close();
        }

     

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  • 原文地址:https://www.cnblogs.com/shiningrise/p/1436810.html
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