select command

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  • un.选择命令
  • Web具有以下命令属性；方法时

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un.
1.
选择命令

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Definition:
AllAll,选择命令选择命令,具有以下命令属性具有以下命令属性,方法时方法时
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
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1.
To allow that, you might specify an SQL statement like the following as the CommandText property of a SelectCommand.
若要允许这样操作，可以将类似下面的SQL语句指定为SelectCommand的CommandText属性。
ruò yào yǔn xǔ zhè yàng cāo zuò , kě yǐ jiāng lèi sì xià mian de SQL yǔ jù zhǐ dìng wèi SelectCommand de CommandText shǔ xìng 。
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2.
The user should call RefreshSchema if any of these properties are modified, or if the SelectCommand itself is replaced.
如果修改了任何这些属性或者替换了SelectCommand本身，用户则应调用RefreshSchema。
rú guǒ xiū gǎi le rèn hé zhè xiē shǔ xìng huò zhě tì huàn le SelectCommand běn shēn , yòng hù zé yīng diào yòng RefreshSchema 。
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3.
The SelectCommand must also return at least one primary key or unique column.
SelectCommand还必须至少返回一个主键列或唯一的列。
SelectCommand hái bì xū zhì shǎo fǎn huí yī gè zhǔ jiàn liè huò wéi yī de liè 。
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4.
The SelectCommand property must be set before you call the Fill method of the DataAdapter.
在调用DataAdapter的Fill方法之前必须设置SelectCommand属性。
zài diào yòng DataAdapter de Fill fāng fǎ zhī qián bì xū shè zhì SelectCommand shǔ xìng 。
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5.
Initializes a new instance of the OleDbDataAdapter class with a SelectCommand.
用SelectCommand初始化OleDbDataAdapter类的新实例。
yòng SelectCommand chū shǐ huà OleDbDataAdapter lèi de xīn shí lì 。
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6.
Initializes a new instance of the OleDbDataAdapter class with the specified OleDbCommand as the SelectCommand property.
初始化OleDbDataAdapter类的新实例，用指定的OleDbCommand作为SelectCommand的属性。
chū shǐ huà OleDbDataAdapter lèi de xīn shí lì , yòng zhǐ dìng de OleDbCommand zuò wéi SelectCommand de shǔ xìng 。
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7.
The DbCommandBuilder also uses the Connection, CommandTimeout, and Transaction properties referenced by the SelectCommand.
DbCommandBuilder还使用由SelectCommand引用的Connection、CommandTimeout和Transaction属性。
DbCommandBuilder hái shǐ yòng yóu SelectCommand yǐn yòng de Connection 、 CommandTimeout hé Transaction shǔ xìng 。
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8.
For security purposes, the SelectCommand property is not stored is view state.
出于安全原因，SelectCommand属性不存储在视图状态中。
chū yú ān quán yuán yīn , SelectCommand shǔ xìng bù cún chǔ zài shì tú zhuàng tài zhōng 。
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9.
The SelectCommand property is set to an appropriate SQL query and data from the Northwind database is displayed in the GridView control.
该示例将SelectCommand属性设置为适当的SQL查询，并在GridView控件中显示Northwind数据库中的数据。
gāi shì lì jiāng SelectCommand shǔ xìng shè zhì wèi shì dàng de SQL chá xún , bìng zài GridView kòng jiàn zhōng xiǎn shì Northwind shù jù kù zhōng de shù jù 。
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10.
The following example creates an instance of the inherited OleDbDataAdapter class, and sets the SelectCommand and InsertCommand properties.
下面的示例创建继承的OleDbDataAdapter类的实例，并设置SelectCommand和InsertCommand属性。
xià mian de shì lì chuàng jiàn jì chéng de OleDbDataAdapter lèi de shí lì , bìng shè zhì SelectCommand hé InsertCommand shǔ xìng 。
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