/// <summary>
/// use for update command/query
/// create list of key-value pair like [ propertyname = propertyvalue ,] and so on
/// dont consider primary key property in list
/// </summary>
/// <param name="mytype">type of class [ex person class or student etc]</param>
private void SetUpdatePropertise(MyType myType)
{
try
{
UpdatePropertiesNamesValuesPair = "";
SetPimaryKeyName(myType);
foreach (PropertyInfo property in myType.GetType().GetProperties())
{
if (property.Name != PrimaryKeyNameInSourceCode && !AttributeHeler.CheckIgnoreColumn(property))
{
TypeCode typeCode = Type.GetTypeCode(property.PropertyType);
string Name = AttributeHeler.GetColumnName(property);// property.Name;
Object value = property.GetValue(myType, null);
if (Name != PrimaryKeyNameInDB)
{
UpdatePropertiesNamesValuesPair += (Name + "='" + value + "',");
}
}
}
UpdatePropertiesNamesValuesPair = UpdatePropertiesNamesValuesPair.Remove(UpdatePropertiesNamesValuesPair.Length - 1);
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// check that the class has [primarykey] attribute or not
/// if yes true
/// else false
/// </summary>
/// <param name="mytype">datatype [ex employee class or student class etc]</param>
/// <returns></returns>
private bool ContainsPrimaryKey(MyType myType)
{
foreach (PropertyInfo property in myType.GetType().GetProperties())
{
if (AttributeHeler.IsPrimaryKeyAttribute(property))
{
return(true);
}
}
return(false);
}
/// <summary>
/// create comma separated list of property values
/// if includeprimary is true then primary key value also consider in list
/// else primary key value is remove from list
/// </summary>
/// <param name="mytype">type of class [ex person class or student etc]</param>
/// <param name="includeprimary">weather primary key property should consider in list or not if yes : consider , if false : removed from list</param>
private void SetPropertiesValues(MyType myType, bool includePrimary = true)
{
string CompleteVal = string.Empty;
foreach (PropertyInfo property in myType.GetType().GetProperties())
{
if (!AttributeHeler.CheckIgnoreColumn(property) && includePrimary == AttributeHeler.IsPrimaryKeyAttribute(property))
{
TypeCode typeCode = Type.GetTypeCode(property.PropertyType);
string Name = property.Name;
Object value = property.GetValue(myType, null);
var val = ClassHelper <MyType> .SetValue(Name, value, myType);
CompleteVal += (ClassHelper <MyType> .CreateSqlString(val) + ",");
}
}
CompleteVal = CompleteVal.Remove(CompleteVal.Length - 1);
PropertiesValues = CompleteVal;
}
/// <summary>
/// create comma separated propertyname list
/// if includeprimary is true then primary key propery also consider in list
/// else primary key property is remove from list
/// </summary>
/// <param name="mytype">type of class [ex person class or student etc]</param>
/// <param name="includeprimary">weather primary key property should consider in list or not if yes : consider , if false : removed from list</param>
private void SetPropertiesNames(MyType myType, bool includePrimary = true)
{
foreach (var property in myType.GetType().GetProperties())
{
if (!AttributeHeler.CheckIgnoreColumn(property))
{
if (includePrimary)
{
string Name = AttributeHeler.GetColumnName(property);
PropertiesNames += (Name + ",");
}
else if (!AttributeHeler.IsPrimaryKeyAttribute(property))
{
string Name = AttributeHeler.GetColumnName(property);
PropertiesNames += (Name + ",");
}
}
}
PropertiesNames = PropertiesNames.Remove(PropertiesNames.Length - 1);
}
/// <summary>
/// Helper method
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="dr"></param>
/// <returns></returns>
private static T GetItem <T>(DataRow dr)
{
Type temp = typeof(T);
T obj = Activator.CreateInstance <T>();
foreach (DataColumn column in dr.Table.Columns)
{
foreach (PropertyInfo pro in temp.GetProperties())
{
string primaryKeyName = AttributeHeler.GetColumnName(pro);
if (primaryKeyName == column.ColumnName && dr[column.ColumnName] != DBNull.Value)
{
pro.SetValue(obj, dr[column.ColumnName], null);
}
else
{
continue;
}
}
}
return(obj);
}
/// <summary>
/// return primary key name
/// </summary>
/// <param name="mytype"></param>
/// <returns></returns>
private string SetPimaryKeyName(MyType myType)
{
var isContainsPrimarKey = ContainsPrimaryKey(myType);
if (isContainsPrimarKey)
{
//foreach loop can be optimised
foreach (PropertyInfo property in myType.GetType().GetProperties())
{
if (AttributeHeler.IsPrimaryKeyAttribute(property))
{
PrimaryKeyNameInSourceCode = property.Name;
string primaryKeyName = AttributeHeler.GetColumnName(property);
PrimaryKeyNameInDB = primaryKeyName;
return(primaryKeyName);
}
}
}
else
{
throw new Exception(ExceptionMessage.PK_NOT_EXIST);
}
throw new Exception("Error occured in SetPkName function");
}
