protected void btn_modify_Click(object sender, EventArgs e)
{
bool b;
if (Context.Request["ddTypeId"] != null)
{
datadicType.DdTypeId = Convert.ToInt32(Context.Request["ddTypeId"]);
datadicType.DdTypeName = tb_ddTypeName.Text;
datadicType.DdTypeDesc = tb_ddTypeDesc.Text;
b = datadicTypeDao.datadicTypeUpdate(datadicType);
if (b)
{
Session["flag"] = "modifySuccess";
Response.Redirect("datadicTypeList.aspx");
}
}
else
{
datadicType = new DatadicType();
datadicType.DdTypeName = tb_ddTypeName.Text;
datadicType.DdTypeDesc = tb_ddTypeDesc.Text;
b = datadicTypeDao.datadicTypeAdd(datadicType);
if (b)
{
Session["flag"] = "addSuccess";
Response.Redirect("datadicTypeList.aspx");
}
}
}
protected void btnDelete_Click(object sender, EventArgs e)
{
DatadicType datadicType = datadicTypeDao.findById(Convert.ToInt32(txtddTyId.Text));
bool b = datadicTypeDao.datadicTypeDelete(datadicType);
if (b)
{
Session["flag"] = "delSuccess";
Response.Redirect("datadicTypeList.aspx");
}
else
{
Session["flag"] = "delFailure";
Response.Redirect("datadicTypeList.aspx");
};
}
//删除书籍类别信息,传入一个DatadicType对象，根据传入对象的ddTypeId进行删除查询，更新成功返回true，否则返回false
public bool datadicTypeDelete(DatadicType datadicType)
{
sqlCon = dbUtil.getCon();
string cmdText = "delete from t_datadicType where ddTypeId=" + datadicType.DdTypeId;
SqlCommand sqlcom = new SqlCommand(cmdText, sqlCon);
int n = sqlcom.ExecuteNonQuery();//返回受影响的行数
if (n == 1)
{
dbUtil.close(sqlCon);
return(true);
}
else
{
dbUtil.close(sqlCon);
return(false);
}
}
//更新书籍类别信息,传入一个DatadicType对象，根据传入对象的ddTypeId进行更新查询，更新成功返回true，否则返回false
public bool datadicTypeUpdate(DatadicType datadicType)
{
sqlCon = dbUtil.getCon();
string cmdText = "update t_datadicType set ddTypeName='" + datadicType.DdTypeName + "', ddTypeDesc='" + datadicType.DdTypeDesc + "' where ddTypeId=" + datadicType.DdTypeId;
SqlCommand sqlcom = new SqlCommand(cmdText, sqlCon);
int n = sqlcom.ExecuteNonQuery();//返回受影响的行数
if (n == 1)
{
dbUtil.close(sqlCon);
return(true);
}
else
{
dbUtil.close(sqlCon);
return(false);
}
}
//插入一个传进来的不含ddTypeId属性的ddType对象，插入成功返回true，否则返回false
public bool datadicTypeAdd(DatadicType datadicType)
{
sqlCon = dbUtil.getCon();
string cmdText = "insert into t_datadicType (ddTypeName, ddTypeDesc) values('" + datadicType.DdTypeName + "','" + datadicType.DdTypeDesc + "')";
SqlCommand sqlcom = new SqlCommand(cmdText, sqlCon);
int n = sqlcom.ExecuteNonQuery();//返回受影响的行数
if (n == 1)
{
dbUtil.close(sqlCon);
return(true);
}
else
{
dbUtil.close(sqlCon);
return(false);
}
}
//根据主键查询某一个DatadicType
public DatadicType findById(int ddTypeId)
{
sqlCon = dbUtil.getCon();
DatadicType resultDatadicType = null;
string cmdText = "select * from t_datadicType where ddTypeId=" + ddTypeId; //查询用户字符串
SqlCommand sqlCmd = new SqlCommand(cmdText, sqlCon); //查询对象
SqlDataReader sqlDr = sqlCmd.ExecuteReader(); //创建逐行数据读取器对象
if (sqlDr.Read())
{
resultDatadicType = new DatadicType();
resultDatadicType.DdTypeId = (int)sqlDr["ddTypeId"];
resultDatadicType.DdTypeName = (string)sqlDr["ddTypeName"];
resultDatadicType.DdTypeDesc = (string)sqlDr["ddTypeDesc"];
}
sqlDr.Close();
dbUtil.close(sqlCon);
return(resultDatadicType);
}
//根据ddTypeName判断是否已经存在,返回true表示已经存在该类别，否则不存在
public bool existDatadicType(DatadicType datadicType)
{
sqlCon = dbUtil.getCon();
string cmdText = "select * from t_datadicType where ddTypeName='" + datadicType.DdTypeName + "'";
SqlCommand sqlCmd = new SqlCommand(cmdText, sqlCon); //查询对象
SqlDataReader sqlDr = sqlCmd.ExecuteReader(); //创建逐行数据读取器对象
if (sqlDr.Read())
{
sqlDr.Close();
dbUtil.close(sqlCon);
return(true);
}
else
{
sqlDr.Close();
dbUtil.close(sqlCon);
return(false);
}
}
protected void Page_Load(object sender, EventArgs e)
{
int ddTypeId = Convert.ToInt32(Context.Request["ddTypeId"]);
//根据datadicTypeList页面传过来的datadicTypeId从数据库中获取datadicType对象
datadicType = datadicTypeDao.findById(ddTypeId);
if (!IsPostBack)
{
if (Context.Request["ddTypeId"] == null)
{
tb_ddTypeDesc.Text = "";
tb_ddTypeName.Text = "";
}
else
{
tb_ddTypeName.Text = datadicType.DdTypeName;
tb_ddTypeDesc.Text = datadicType.DdTypeDesc;
}
}
}
protected void listDatadicType_ItemCommand(object source, RepeaterCommandEventArgs e)
{
//点击删除按钮，删除对应一条的信息
if (e.CommandName == "delete")
{
int ddTypeId = Convert.ToInt32(e.CommandArgument.ToString());
DatadicType datadicType = new DatadicType();
datadicType.DdTypeId = ddTypeId;
bool b = datadicTypeDao.datadicTypeDelete(datadicType);
if (b)
{
Response.Redirect("datadicTypeList.aspx");
}
}
//点击修改，跳转到datadicTypeModify,并且将ddTypeId作为参数传过去
else if (e.CommandName == "modify")
{
string url;
url = "datadicTypeSave.aspx?ddTypeId=" + e.CommandArgument;
Response.Redirect(url);
}
}
