Expand table DataTypeAttribute(DataType) Initializes a new instance of the DataTypeAttribute class by using the specified type name. DataTypeAttribute(String) Initializes a new instance of the DataTypeAttribute class by using the specified field template name. DataTypeAttribute(DataType) Sourc...
[System.ComponentModel.TypeConverter(typeof(System.Data.ColumnTypeConverter))] public Type DataType { get; set; } 属性值 Type 一个Type 对象,它表示列数据类型。 属性 TypeConverterAttribute 例外 ArgumentException 列已经存储了数据。 示例 以下示例将多种数据类型的列添加到 , DataTable然后将一行添加到...
Its ColumnMapping can be only set to MappingType.Element. The class that implements the column's data type must be marked with the SerializableAttribute, and if necessary implement the ISerializable or IXmlSerializable interface. Support for change tracking is limited. To utilize the DataTable clas...
Expand table AttributeUsage context_handleIdentifies a binding handle that maintains state (context) information on a particular server between remote procedure calls from a particular client. Not valid forobjectinterface functions. handleSpecifies a custom handle type specific to the application. ...
dataTableImageTemplate.css:用来设置图片大小的初始值,这种是一种偷懒的方式,正常应该通过 attribute注入进来指定大小的宽和高。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 .image { height: 30px; width: 30px; } dataTableImageTemplate.js 代码语言:javascript 代码运行次数:0 运行 AI代码解释 import...
the value must be applicable to all the undefined fields. For example, you could NOT use the following attribute to initializecurrentPacket:(others=>‘0’) since ‘0’ is valid only for std_logic and has no meaning when applied to integers, Booleans, or user-defined types (seeTable 3.1)...
[System.ComponentModel.DataObjectMethodAttribute (System.ComponentModel.DataObjectMethodType.Select, false)]publicNorthwindWithSprocs.ProductsDataTableGetProductsWithPriceQuartile(){returnAdapter.GetProductsWithPriceQuartile(); } 与ProductsBLLWithSprocs 中的其他数据检索方法一样,GetProductsWithPriceQuartile 方法只...
[System.Runtime.InteropServices.Guid("00020843-0000-0000-C000-000000000046")] [System.Runtime.InteropServices.InterfaceType(2)] public interface DataTable 属性 GuidAttribute InterfaceTypeAttribute 注解 DataTable使用 属性可返回 DataTable 对象。 属性 展开表 Application 返回一个 Application 对象,该对象代...
{//读取属性上的DataField特性object[] attributes = mi.GetCustomAttributes(typeof(DataFieldAttribute),true);foreach(varattrinattributes) {vardataFieldAttr = attrasDataFieldAttribute;if(dataFieldAttr !=null) {varpropInfo =info.GetProperty(mi.Name);if(dr.Table.Columns.Contains(dataFieldAttr.ColumnNa...
SqlDbType.NVarChar, 15, "CategoryName"); SqlParameter parameter = dataAdapter.UpdateCommand.Parameters.Add( "@CategoryID", SqlDbType.Int); parameter.SourceColumn = "CategoryID"; parameter.SourceVersion = DataRowVersion.Original; DataTable categoryTable = new(); dataAdapter.Fill(categoryTable); Data...