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  • Enabling and disabling a filter
  • Number of possible active filters
  • Browse
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Stored procedures
Temporarily disables the filter on a data file (view or query). This filter was created by HFilter. HDeactivateFilter has no effect if no filter was declared.
Versions 15 and later
Android This function is now available for the Android applications.
New in version 15
Android This function is now available for the Android applications.
Android This function is now available for the Android applications.
Versions 17 and later
iPhone/iPad This function is now available for the iPhone/iPad applications.
New in version 17
iPhone/iPad This function is now available for the iPhone/iPad applications.
iPhone/iPad This function is now available for the iPhone/iPad applications.
Versions 18 and later
Android Widget This function is now available in Android Widget mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Android Widget This function is now available in Android Widget mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Android Widget This function is now available in Android Widget mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Note: From version 19, HFSQL is the new name of HyperFileSQL.
// Declare the filter: selecting the customers
// who are between 20 and 60 years old
HFilter(CUSTOMER, AGE_Customer, 20, 60)
...
HDeactivateFilter(CUSTOMER) // Disabled filter
...
// Browse the file with a filter on the age
// Process the customers who are between 20 and 60 years old
// (ProcessCustomer2060 procedure)
HActivateFilter(CUSTOMER)
HReadFirst(CUSTOMER, AGE_Customer)
WHILE HFound(CUSTOMER) = True
ProcessCustomer2060()
HReadNext(CUSTOMER, AGE_Customer)
END
Syntax
<Result> = HDeactivateFilter([<File Name>])
<Result>: Boolean
  • True if the filter is disabled,
  • False if an error occurred (data file or item not found).
<File Name>: Optional character string (with or without quotes)
Name of data file, view or query used. If this parameter is not specified, HDeactivateFilter handles the last data file used by the last function for HFSQL management (starting with the letter H).
Remarks

Enabling and disabling a filter

The filter is enabled once it has been declared (HFilter). A filter disabled by HDeactivateFilter can be re-enabled by HActivateFilter.
Note: During the call to HClose, the filter enabled by HFilter is automatically deleted.

Number of possible active filters

A single filter can be enabled at a time for a given file.

Browse

The modifications performed by HFilter and HDeactivateFilter are taken into account when using HReadFirst/HFirst, HReadLast/HLast or HReadSeekFirst/HReadSeekLast.
Components
WINDEVWEBDEV - Server codeReports and Queries wd230hf.dll
Windows Mobile wp230hf.dll
Java wd230java.jar
Linux wd230hf.so
Android wd230android.jar
Minimum required version
  • Version 9
This page is also available for…
Comments
Exemplo
HDeactivateFilter(cliente)
SWITCH COMBO_ESCOLHA
CASE 1
TABLE_cliente..BrowsedItem = cliente.clienteID..Name
CASE 2
TABLE_cliente..BrowsedItem = cliente.nome..Name
CASE 3
TABLE_cliente..BrowsedItem = cliente.email..Name
OTHER CASE
END
TableDisplay(TABLE_cliente,taStart)
//Blog com Video e exemplo
http://windevdesenvolvimento.blogspot.com.br/2016/02/curso-windev-tabela-007-alterar-ordem.html
De matos AMARILDO
Feb. 04 2016