/// <summary>
/// 增加一条数据
/// </summary>
public int AddM_MessageImgInfo(M_MessageImgInfo model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into tb_M_MessageImgInfo(");
strSql.Append("m_MessageInfoID,url)");
strSql.Append(" values (");
strSql.Append("@m_MessageInfoID,@url)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@m_MessageInfoID", SqlDbType.Int, 4),
new SqlParameter("@url", SqlDbType.VarChar, 512)
};
parameters[0].Value = model.m_MessageInfoID;
parameters[1].Value = model.url;
object obj = DbHelper.ExecuteScalar(CommandType.Text, strSql.ToString(), parameters);
if (obj == null)
{
return(-1);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public M_MessageImgInfo GetM_MessageImgInfoModel(int m_MessageImgInfoID)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 m_MessageImgInfoID,m_MessageInfoID,url from tb_M_MessageImgInfo ");
strSql.Append(" where m_MessageImgInfoID=@m_MessageImgInfoID ");
SqlParameter[] parameters =
{
new SqlParameter("@m_MessageImgInfoID", SqlDbType.Int, 4)
};
parameters[0].Value = m_MessageImgInfoID;
M_MessageImgInfo model = new M_MessageImgInfo();
DataSet ds = DbHelper.ExecuteDataset(CommandType.Text, strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
if (ds.Tables[0].Rows[0]["m_MessageImgInfoID"].ToString() != "")
{
model.m_MessageImgInfoID = int.Parse(ds.Tables[0].Rows[0]["m_MessageImgInfoID"].ToString());
}
if (ds.Tables[0].Rows[0]["m_MessageInfoID"].ToString() != "")
{
model.m_MessageInfoID = int.Parse(ds.Tables[0].Rows[0]["m_MessageInfoID"].ToString());
}
model.url = ds.Tables[0].Rows[0]["url"].ToString();
return(model);
}
else
{
return(null);
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public void UpdateM_MessageImgInfo(M_MessageImgInfo model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update tb_M_MessageImgInfo set ");
strSql.Append("m_MessageInfoID=@m_MessageInfoID,");
strSql.Append("url=@url");
strSql.Append(" where m_MessageImgInfoID=@m_MessageImgInfoID ");
SqlParameter[] parameters =
{
new SqlParameter("@m_MessageImgInfoID", SqlDbType.Int, 4),
new SqlParameter("@m_MessageInfoID", SqlDbType.Int, 4),
new SqlParameter("@url", SqlDbType.VarChar, 512)
};
parameters[0].Value = model.m_MessageImgInfoID;
parameters[1].Value = model.m_MessageInfoID;
parameters[2].Value = model.url;
DbHelper.ExecuteNonQuery(CommandType.Text, strSql.ToString(), parameters);
}
