Use C # to get table names and content for all tables in Access __c#

Previously checked on the internet, it seems that you can also read access system tables to obtain, but really want to think about what is, and today on the Internet to find a more convenient way, and, more importantly, this method can also be common to all OLE DB data sources.

Here are two ways to use OleDbConnection:

GetSchema

GetOleDbSchemaTable

Look at MSDN Help, write is not clear, or use the code to speak it.

1. Get the schema of OLE DB connection

View plain Copy to clipboard print? Conn.    Open (); DataTable Cnsch = conn. GetSchema ();

Conn. Open (); DataTable Cnsch = conn. GetSchema ();

The result returned is a DataTable, as follows:

MetaDataCollections	0	0
DataSourceInformation	0	0
Datatypes	0	0
Restrictions	0	0
ReservedWords	0	0
Columns	4	4
Indexes	5	4
Procedures	4	3
Tables	4	3
Views	3	3

(The name of the column can not be copied, but the picture can't be pasted.)

2, and then you can specify to read the content, such as reading all the table information.

View plain Copy to clipboard print? DataTable TBL = conn.    GetSchema ("Tables"); Dgv1. DataSource = TBL;

DataTable TBL = conn. GetSchema ("Tables"); Dgv1. DataSource = TBL;

The results returned are as follows:

TABLE_NAME Table_type

Detail TABLE
Detail1 TABLE
Maintask TABLE
MSysAccessStorage ACCESS TABLE
Msysaccessxml ACCESS TABLE
Msysaces SYSTEM TABLE
Msysnavpanegroupcategories ACCESS TABLE
Msysnavpanegroups ACCESS TABLE
Msysnavpanegrouptoobjects ACCESS TABLE
Msysnavpaneobjectids ACCESS TABLE
Msysobjects SYSTEM TABLE
Msysqueries SYSTEM TABLE
Msysrelationships SYSTEM TABLE
Query1 VIEW
Tagaccesslog TABLE
Testdetail TABLE
Testlog TABLE
Testmain TABLE
Testtask TABLE

3, continue to read the column information of a table, such as reading Maintask table information:

View plain Copy to clipboard print? DataTable COLTBL = conn.     GetSchema ("Columns", new string[] {null, NULL, "Maintask"}); DGVCN.DATASOURCE=COLTBL;

DataTable COLTBL = conn. GetSchema ("Columns", new string[] {null, NULL, "Maintask"}); DGVCN.DATASOURCE=COLTBL;

Returns the result part column contents:

TABLE_NAME COLUMN_NAME

Maintask	Catalog
Maintask	Content
Maintask	Crdate
Maintask	Emergency
Maintask	EndDate
Maintask	Fnrate
Maintask	Level
Maintask	Mainid
Maintask	StartDate
Maintask	Tags
Maintask	Title
Maintask	Memo
Maintask	Memo2

4, and then you can try another method to read the table information:

  View plain copy to clipboard print? Datatable tblsch = conn. GetOleDbSchemaTable (Oledbschemaguid.tables, null);    dataview view = tblsch.defaultview;    view. rowfilter =  "table_type= ' table '  or table_type= ' view '";          Cmbtbllist.selectedindexchanged -= cmbtbllist_ SelectedIndexChanged;    cmbtbllist.datasource = view;    cmbtbllist.displaymember =  "table_name";    cmbtbllist.selectedindexchanged += cmbtbllist_selectedindexchanged;       dgvsch.datasource = view;    dgv1. datasource = tblsch;  

DataTable Tblsch = conn. GetOleDbSchemaTable (OleDbSchemaGuid.Tables, NULL); DataView view = Tblsch.defaultview; View. RowFilter = "table_type= ' table ' or table_type= ' view '"; Cmbtbllist.selectedindexchanged-= cmbtbllist_selectedindexchanged; Cmbtbllist.datasource = view; Cmbtbllist.displaymember = "table_name"; Cmbtbllist.selectedindexchanged + = cmbtbllist_selectedindexchanged; Dgvsch.datasource = view; Dgv1. DataSource = Tblsch;

return Result:

Detail	TABLE
Detail1	TABLE
Maintask	TABLE
Query1	VIEW
Tagaccesslog	TABLE
Testdetail	TABLE
Testlog	TABLE
Testmain	TABLE
Testtask	TABLE

Well, almost all the information should be taken, especially the information about the field, very detailed.