/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(ZhangWei.Model.sysdiagrams model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update sysdiagrams set ");
strSql.Append("name=@name,");
strSql.Append("principal_id=@principal_id,");
strSql.Append("version=@version,");
strSql.Append("definition=@definition");
strSql.Append(" where diagram_id=@diagram_id");
SqlParameter[] parameters =
{
new SqlParameter("@name", SqlDbType.VarChar, 256),
new SqlParameter("@principal_id", SqlDbType.Int, 4),
new SqlParameter("@version", SqlDbType.Int, 4),
new SqlParameter("@definition", SqlDbType.VarBinary),
new SqlParameter("@diagram_id", SqlDbType.Int, 4)
};
parameters[0].Value = model.name;
parameters[1].Value = model.principal_id;
parameters[2].Value = model.version;
parameters[3].Value = model.definition;
parameters[4].Value = model.diagram_id;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 增加一条数据
/// </summary>
public int Add(ZhangWei.Model.sysdiagrams model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into sysdiagrams(");
strSql.Append("name,principal_id,version,definition)");
strSql.Append(" values (");
strSql.Append("@name,@principal_id,@version,@definition)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@name", SqlDbType.VarChar, 256),
new SqlParameter("@principal_id", SqlDbType.Int, 4),
new SqlParameter("@version", SqlDbType.Int, 4),
new SqlParameter("@definition", SqlDbType.VarBinary)
};
parameters[0].Value = model.name;
parameters[1].Value = model.principal_id;
parameters[2].Value = model.version;
parameters[3].Value = model.definition;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
private void ShowInfo(int diagram_id)
{
ZhangWei.BLL.sysdiagrams bll = new ZhangWei.BLL.sysdiagrams();
ZhangWei.Model.sysdiagrams model = bll.GetModel(diagram_id);
this.lblname.Text = model.name;
this.lblprincipal_id.Text = model.principal_id.ToString();
this.lbldiagram_id.Text = model.diagram_id.ToString();
this.lblversion.Text = model.version.ToString();
this.lbldefinition.Text = model.definition.ToString();
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public ZhangWei.Model.sysdiagrams GetModel(int diagram_id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 name,principal_id,diagram_id,version,definition from sysdiagrams ");
strSql.Append(" where diagram_id=@diagram_id");
SqlParameter[] parameters =
{
new SqlParameter("@diagram_id", SqlDbType.Int, 4)
};
parameters[0].Value = diagram_id;
ZhangWei.Model.sysdiagrams model = new ZhangWei.Model.sysdiagrams();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
if (ds.Tables[0].Rows[0]["name"] != null && ds.Tables[0].Rows[0]["name"].ToString() != "")
{
model.name = ds.Tables[0].Rows[0]["name"].ToString();
}
if (ds.Tables[0].Rows[0]["principal_id"] != null && ds.Tables[0].Rows[0]["principal_id"].ToString() != "")
{
model.principal_id = int.Parse(ds.Tables[0].Rows[0]["principal_id"].ToString());
}
if (ds.Tables[0].Rows[0]["diagram_id"] != null && ds.Tables[0].Rows[0]["diagram_id"].ToString() != "")
{
model.diagram_id = int.Parse(ds.Tables[0].Rows[0]["diagram_id"].ToString());
}
if (ds.Tables[0].Rows[0]["version"] != null && ds.Tables[0].Rows[0]["version"].ToString() != "")
{
model.version = int.Parse(ds.Tables[0].Rows[0]["version"].ToString());
}
if (ds.Tables[0].Rows[0]["definition"] != null && ds.Tables[0].Rows[0]["definition"].ToString() != "")
{
model.definition = (byte[])ds.Tables[0].Rows[0]["definition"];
}
return(model);
}
else
{
return(null);
}
}
public void btnSave_Click(object sender, EventArgs e)
{
string strErr = "";
if (this.txtname.Text.Trim().Length == 0)
{
strErr += "name不能为空！\\n";
}
if (!PageValidate.IsNumber(txtprincipal_id.Text))
{
strErr += "principal_id格式错误！\\n";
}
if (!PageValidate.IsNumber(txtversion.Text))
{
strErr += "version格式错误！\\n";
}
if (strErr != "")
{
MessageBox.Show(this, strErr);
return;
}
string name = this.txtname.Text;
int principal_id = int.Parse(this.txtprincipal_id.Text);
int diagram_id = int.Parse(this.lbldiagram_id.Text);
int version = int.Parse(this.txtversion.Text);
byte[] definition = new UnicodeEncoding().GetBytes(this.txtdefinition.Text);
ZhangWei.Model.sysdiagrams model = new ZhangWei.Model.sysdiagrams();
model.name = name;
model.principal_id = principal_id;
model.diagram_id = diagram_id;
model.version = version;
model.definition = definition;
ZhangWei.BLL.sysdiagrams bll = new ZhangWei.BLL.sysdiagrams();
bll.Update(model);
Maticsoft.Common.MessageBox.ShowAndRedirect(this, "保存成功！", "list.aspx");
}
