/// <summary>
/// 进行sql数据库类型和.Net CLR 之间类型的转换。
/// </summary>
/// <param name="col">The col.</param>
/// <returns></returns>
public static string ExchangeDotNetType(Column col)
{
string dotNetType = "string";
switch (col.DataType.ToLowerInvariant())
{
case "smallint":
case "int":
dotNetType = col.Nullable.ToBoolean() ? "int?" : "int";
break;
case "datetime":
dotNetType = col.Nullable.ToBoolean() ? "DateTime?" : "DateTime";
break;
case "float":
dotNetType = col.Nullable.ToBoolean() ? "float?" : "float";
break;
case "decimal":
dotNetType = col.Nullable.ToBoolean() ? "decimal?" : "decimal";
break;
case "timestamp":
dotNetType = "byte[]";
break;
case "bit":
dotNetType = col.Nullable.ToBoolean() ? "bool?" : "bool";
break;
case "uniqueidentifier":
dotNetType = "Guid";
break;
case "tinyint":
dotNetType = col.Nullable.ToBoolean() ? "Int16?" : "Int16";
break;
case "varchar":
case "char":
case "nvarchar":
case "nchar":
case "text":
case "demo":
default:
break;
}
return dotNetType;
}
/// <summary>
/// 生成构造函数以及内部部分
/// </summary>
/// <param name="column">The column.</param>
/// <returns></returns>
private string buildCtor(Column column)
{
string defValue = column.DefaultValue.Replace("(", string.Empty).Replace(")", string.Empty);
string datatypeLower = column.DataType.ToLowerInvariant();
if (t_Sql_Func.Contains(datatypeLower))
{
defValue = "DateTime.Now";
}
else if (t_ints.Contains(datatypeLower)) //int ..
{
if (datatypeLower == "bit")
defValue = defValue.Replace("0", "false").Replace("1", "true");
else
defValue = column.DefaultValue;
}
else if (t_strings.Contains(datatypeLower))//string
{
defValue = "\"{0}\"".FormatWith(defValue);
}
/*
ID = 1;
{0} = {1} ;
*/
return "_{0} = {1} ; ".FormatWith(column.ColumnName, defValue);
}
