本文整理汇总了C#中ColumnSchema类的典型用法代码示例。如果您正苦于以下问题：C# ColumnSchema类的具体用法？C# ColumnSchema怎么用？C# ColumnSchema使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ColumnSchema类属于命名空间，在下文中一共展示了ColumnSchema类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetSchema
public DbSchema GetSchema()
{
var schema = new DbSchema();
var map = _configuration.BuildMapping();
var mappings = _configuration.ClassMappings;
foreach(var class_map in mappings)
{
var table = class_map.Table;
var table_schema = new TableSchema() {TableName = table.Name, SchemaName = table.Schema};
foreach (var column in table.ColumnIterator)
{
var type_code = column.GetSqlTypeCode(map);
var columnSchema = new ColumnSchema()
{
TableName = table_schema.TableName,
ColumnName = column.Name,
IsNullable = column.IsNullable,
DatabaseType = type_code.DbType,
Size = column.Length,
Scale = column.Scale,
Precision = column.Precision,
IsPrimaryKey = table.PrimaryKey.Columns.Contains(column)
};
// columnSchema.DatabaseType = property.GetSqlTypeCode(map).DbType;
table_schema.AddColumn(columnSchema);
}
schema.AddTable(table_schema);
}
return schema;
}示例2: BuildAlterColumnCommand
public override string BuildAlterColumnCommand(ColumnSchema schema)
{
string sql = String.Format(
@"ALTER TABLE {0} ALTER COLUMN {1}",
Api.CommandBuilder.QuoteIdentifier(schema.TableName),
ColumnSqlCommand(schema)
);
return sql;
}示例3: GetColumnSize
public string GetColumnSize(ColumnSchema column)
{
string columnSize = column.Size.ToString();
if (column.NativeType == "numeric" && column.Precision != 0)
{
columnSize += "(" + column.Precision.ToString() + "," + column.Scale + ")";
}
return columnSize;
}示例4: GetPropertyName
public string GetPropertyName(ColumnSchema column)
{
string propertyName = column.Name;
if (propertyName == column.Table.Name + "Name") return "Name";
if (propertyName == column.Table.Name + "Description") return "Description";
if (propertyName.EndsWith("TypeCode")) propertyName = propertyName.Substring(0, propertyName.Length - 4);
return propertyName;
}示例5: GetPropertyNameFromColumn
/// <summary>
/// Helper for class generation from tables, converts a column name into a Property Name
/// </summary>
/// <param name="column"> Column to be converted</param>
/// <param name="prefix">Add characters to column</param>
/// <param name="strip">remove characters from column</param>
/// <returns>string</returns>
public static string GetPropertyNameFromColumn(ColumnSchema column, string prefix, string strip)
{
if (strip != string.Empty)
{
return prefix + column.Name.Replace(strip, "").ToCSharpIdentifier().ToPascalCase();
}
else
{
return prefix + column.Name.ToCSharpIdentifier().ToPascalCase();
}
}示例6: GetReaderMethod
public string GetReaderMethod(ColumnSchema column)
{
switch (column.DataType)
{
case DbType.Byte:
{
return "GetByte";
}
case DbType.Int16:
{
return "GetInt16";
}
case DbType.Int32:
{
return "GetInt32";
}
case DbType.Int64:
{
return "GetInt64";
}
case DbType.AnsiStringFixedLength:
case DbType.AnsiString:
case DbType.String:
case DbType.StringFixedLength:
{
return "GetString";
}
case DbType.Boolean:
{
return "GetBoolean";
}
case DbType.Guid:
{
return "GetGuid";
}
case DbType.Currency:
case DbType.Decimal:
{
return "GetDecimal";
}
case DbType.DateTime:
case DbType.Date:
{
return "GetDateTime";
}
default:
{
return "__SQL__" + column.DataType;
}
}
}示例7: IsChildFKColumn
public static bool IsChildFKColumn(ColumnSchema column, TableSchema table)
{
foreach (ReferenceSchema inReference in table.InReferences)
{
foreach (ReferenceJoin join in inReference.Joins)
{
//Found the child Column...
if (join.ChildColumn.ObjectID == column.ObjectID)
{
return true;
}
}
}
return false;
}示例8: GetCSharpTypeFromDBFieldType
public string GetCSharpTypeFromDBFieldType(ColumnSchema column)
{
if (column.Name.EndsWith("TypeCode")) return column.Name;
string type;
switch (column.DataType)
{
case DbType.AnsiString: type= "string";break;
case DbType.AnsiStringFixedLength: type= "string";break;
case DbType.Binary: type= "byte[]";break;
case DbType.Boolean: type= "bool";break;
case DbType.Byte: type= "byte";break;
case DbType.Currency: type= "decimal";break;
case DbType.Date: type= "DateTime";break;
case DbType.DateTime: type= "DateTime";break;
case DbType.Decimal: type= "decimal";break;
case DbType.Double: type= "double";break;
case DbType.Guid: type= "Guid";break;
case DbType.Int16: type= "short";break;
case DbType.Int32: type= "int";break;
case DbType.Int64: type= "long";break;
case DbType.Object: type= "object";break;
case DbType.SByte: type= "sbyte";break;
case DbType.Single: type= "float";break;
case DbType.String: type= "string";break;
case DbType.StringFixedLength: type= "string";break;
case DbType.Time: type= "TimeSpan";break;
case DbType.UInt16: type= "ushort";break;
case DbType.UInt32: type= "uint";break;
case DbType.UInt64: type= "ulong";break;
case DbType.VarNumeric: type= "decimal";break;
default:
{
type= "__UNKNOWN__" + column.NativeType;
break;
}
}
if(column.AllowDBNull&&
column.SystemType.IsValueType)
{
type=type+"?";
}
return type;
}示例9: GetConvertToNETType
public static string GetConvertToNETType(ColumnSchema column, string strExpression)
{
switch (column.NetDataType)
{
case "System.Int32":
return "Convert.ToInt32(" + strExpression + ")";
case "System.Byte":
return "Convert.ToByte(" + strExpression + ")";
case "System.Boolean":
return "Convert.ToBoolean(" + strExpression + ")";
case "System.Char":
return "Convert.ToChar(" + strExpression + ")";
case "System.DateTime":
return "Convert.ToDateTime(" + strExpression + ")";
case "System.Decimal":
return "Convert.ToDecimal(" + strExpression + ")";
case "System.Double":
return "Convert.ToDouble(" + strExpression + ")";
case "System.Int16":
return "Convert.ToInt16(" + strExpression + ")";
case "System.Int64":
return "Convert.ToInt64(" + strExpression + ")";
case "System.SByte":
return "Convert.ToSByte(" + strExpression + ")";
case "System.Single":
return "Convert.ToSingle(" + strExpression + ")";
case "System.TimeSpan":
return "Convert.ToDateTime(" + strExpression + ")";
case "System.UInt16":
return "Convert.ToUInt16(" + strExpression + ")";
case "System.UInt32":
return "Convert.ToUInt32(" + strExpression + ")";
case "System.UInt64":
return "Convert.ToUInt64 (" + strExpression + ")";
case "System.Guid":
return "Convert.ToString(" + strExpression + ")";
case "System.Byte[]":
return "(Byte[])(" + strExpression + ")";
default:
return "Convert.ToString(" + strExpression + ")";
}
}示例10: ExtractType
private string ExtractType(ColumnSchema schema)
{
var rez = schema.DataType;
if (!string.IsNullOrEmpty(schema.CharacterMaximumLength))
{
rez = rez + "(" + (schema.CharacterMaximumLength == "-1"
? "max"
: schema.CharacterMaximumLength) + ")";
return rez;
}
if (!string.IsNullOrEmpty(schema.NumericPrecision))
{
rez = rez + "(" + schema.NumericPrecision;
if (!string.IsNullOrEmpty(schema.NumericScale))
{
rez = rez + "," + schema.NumericScale;
}
return rez + ")";
}
return rez;
}示例11: GetMemberVariableDefaultValue
public string GetMemberVariableDefaultValue(ColumnSchema column)
{
switch (column.DataType)
{
case DbType.Guid:
{
return "Guid.Empty";
}
case DbType.AnsiString:
case DbType.AnsiStringFixedLength:
case DbType.String:
case DbType.StringFixedLength:
{
return "String.Empty";
}
default:
{
return "";
}
}
}示例12: GetColumns
public override IList<ColumnSchema> GetColumns(System.Data.Common.DbConnectionStringBuilder connectionstr, string tablename)
{
IList<ColumnSchema> list = null;
using (MySqlConnection connection = new MySqlConnection(connectionstr.ConnectionString))
{
connection.Open();
DataTable columns = connection.GetSchema(SqlClientMetaDataCollectionNames.Columns, new string[] { null, null, tablename, null });
if (columns != null && columns.Rows.Count > 0)
{
list = new List<ColumnSchema>();
DataView dv = columns.DefaultView;
dv.Sort = "ORDINAL_POSITION asc";
foreach (DataRowView table in dv)
{
string name = string.Format("{0}({1})", table["COLUMN_NAME"], table["DATA_TYPE"]);
ColumnSchema column = new ColumnSchema(name);
list.Add(column);
}
}
}
return list;
}示例13: GetConvert
public string GetConvert(ColumnSchema column)
{
if (column.Name.EndsWith("TypeCode")) return column.Name;
switch (column.DataType)
{
case DbType.AnsiString: return "Convert.ToString";
case DbType.AnsiStringFixedLength: return "Convert.ToString";
case DbType.Binary: return "Convert.ToByte";
case DbType.Boolean: return "Convert.ToBoolean";
case DbType.Byte: return "Convert.ToInt32";
case DbType.Currency: return "Convert.ToDecimal";
case DbType.Date: return "Convert.ToDateTime";
case DbType.DateTime: return "Convert.ToDateTime";
case DbType.Decimal: return "Convert.ToDecimal";
case DbType.Double: return "Convert.ToDouble";
case DbType.Guid: return "Convert.ToString";
case DbType.Int16: return "Convert.ToInt16";
case DbType.Int32: return "Convert.ToInt32";
case DbType.Int64: return "Convert.ToInt64";
case DbType.Object: return "Convert.ToString";
case DbType.SByte: return "Convert.ToByte";
case DbType.Single: return "Convert.ToInt32";
case DbType.String: return "Convert.ToString";
case DbType.StringFixedLength: return "Convert.ToString";
case DbType.Time: return "Convert.DateTime";
case DbType.UInt16: return "Convert.ToUInt16";
case DbType.UInt32: return "Convert.ToUInt32";
case DbType.UInt64: return "Convert.ToUInt64";
case DbType.VarNumeric: return "Convert.ToDecimal";
default:
{
return "__UNKNOWN__" + column.NativeType;
}
}
}示例14: GetCSharpConvert
public static string GetCSharpConvert(ColumnSchema column, string placeholder)
{
if (column.Name.EndsWith("TypeCode")) return column.Name;
switch (column.DataType)
{
case DbType.AnsiString: return placeholder;
case DbType.AnsiStringFixedLength: return placeholder;
//case DbType.Binary: return "byte []";
case DbType.Boolean: return "Convert.ToBoolean(" + placeholder + ");";
case DbType.Byte: return "Convert.ToByte(" + placeholder + ")";
case DbType.Currency: return "Convert.ToDecimal(" + placeholder + ")";
case DbType.Date: return placeholder;
case DbType.DateTime: return placeholder;
case DbType.Decimal: return "Convert.ToDecimal(" + placeholder + ")";
case DbType.Double: return "Convert.ToDouble(" + placeholder + ")";
case DbType.Guid: return placeholder;
case DbType.Int16: return "Convert.ToInt16(" + placeholder + ")";
case DbType.Int32: return "Convert.ToInt32(" + placeholder + ")";
case DbType.Int64: return "Convert.ToInt64(" + placeholder + ")";
case DbType.Object: return placeholder;
case DbType.SByte: return "Convert.ToSByte(" + placeholder + ")";
case DbType.Single: return "Convert.ToFloat(" + placeholder + ")";
case DbType.String: return placeholder;
case DbType.StringFixedLength: return placeholder;
case DbType.Time: return "TimeSpan";
case DbType.UInt16: return "Convert.ToUInt16(" + placeholder + ")";
case DbType.UInt32: return "Convert.ToUInt32(" + placeholder + ")";
case DbType.UInt64: return "Convert.ToUInt64(" + placeholder + ")";
case DbType.VarNumeric: return "Convert.ToDecimal(" + placeholder + ")";
default:
{
return "__UNKNOWN__" + column.NativeType;
}
}
}示例15: GetCSharpVariableType
public static string GetCSharpVariableType(ColumnSchema column)
{
if (column.Name.EndsWith("TypeCode")) return column.Name;
switch (column.DataType)
{
case DbType.AnsiString: return "string";
case DbType.AnsiStringFixedLength: return "string";
case DbType.Binary: return "byte []";
case DbType.Boolean: return "bool";
case DbType.Byte: return "byte";
case DbType.Currency: return "decimal";
case DbType.Date: return "DateTime";
case DbType.DateTime: return "DateTime";
case DbType.Decimal: return "decimal";
case DbType.Double: return "double";
case DbType.Guid: return "Guid";
case DbType.Int16: return "short";
case DbType.Int32: return "int";
case DbType.Int64: return "long";
case DbType.Object: return "object";
case DbType.SByte: return "sbyte";
case DbType.Single: return "float";
case DbType.String: return "string";
case DbType.StringFixedLength: return "string";
case DbType.Time: return "TimeSpan";
case DbType.UInt16: return "ushort";
case DbType.UInt32: return "uint";
case DbType.UInt64: return "ulong";
case DbType.VarNumeric: return "decimal";
default:
{
return "__UNKNOWN__" + column.NativeType;
}
}
}