Difference between revisions of "TDataSource"
From Lazarus wiki
Jump to navigationJump to search (Created page with "<tt>'''TDataSource'''</tt> is a component that mediates communication between a <tt>TDataSet</tt> based component that represents the database contents and Data Controls l...") |
m |
||
(8 intermediate revisions by 2 users not shown) | |||
Line 1: | Line 1: | ||
− | + | {{TDataSource}} | |
+ | |||
+ | '''TDataSource''' [[image:tdatasource.png]] is a component that mediates communication between a <tt>[[TDataSet]]</tt> based component that represents the database contents and Data Controls like <tt>[[TDBGrid]]</tt>. | ||
Typically, a <tt>TDataSource</tt> contains a field 'DataSet' that connects to a <tt>[[TSQLQuery]]</tt> or other <tt>TDataSet</tt> descendant. The DataSource should connect to the 'DataSource' field of a TDBGrid or other Data Control component. | Typically, a <tt>TDataSource</tt> contains a field 'DataSet' that connects to a <tt>[[TSQLQuery]]</tt> or other <tt>TDataSet</tt> descendant. The DataSource should connect to the 'DataSource' field of a TDBGrid or other Data Control component. | ||
− | == | + | SQLTransaction1.Database := SQLConnection1; |
− | * | + | SQLQuery1.Transaction := SQLTransaction1; |
+ | '''DataSource1'''.DataSet := SQLQuery1; | ||
+ | DBGrid1.DataSource := '''DataSource1'''; | ||
+ | |||
+ | == See also == | ||
+ | * [[doc:fcl/db/tdatasource.html|TDataSource doc]] | ||
+ | * [[TSQLTransaction]] | ||
+ | * [[TSQLQuery]] | ||
− | + | {{LCL Components}} |
Latest revision as of 07:57, 14 June 2017
│
English (en) │
français (fr) │
日本語 (ja) │
русский (ru) │
TDataSource is a component that mediates communication between a TDataSet based component that represents the database contents and Data Controls like TDBGrid.
Typically, a TDataSource contains a field 'DataSet' that connects to a TSQLQuery or other TDataSet descendant. The DataSource should connect to the 'DataSource' field of a TDBGrid or other Data Control component.
SQLTransaction1.Database := SQLConnection1; SQLQuery1.Transaction := SQLTransaction1; DataSource1.DataSet := SQLQuery1; DBGrid1.DataSource := DataSource1;
See also