<TreeView Table>.GiveChild (Function)

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<TreeView Table>.GiveChild (Function)

In french: <Table hiérarchique>.RécupèreFils

Returns the "children" of an element (lower level) in a TreeView Table control.

Versions 18 and later

This function is now available for WEBDEV sites in Windows.

New in version 18

This function is now available for WEBDEV sites in Windows.

Example

// First "child" of first node in the "TVT_RecipeTV" control
Res is int
Res = TVT_RecipeTV.GiveChild(1, taFirst)
WHILE Res <> -1
Trace(Res)
Res = TVT_RecipeTV.GiveChild(1, taNext)
END

// Recursive procedure used to list all children
// of all parents from a row
PROCEDURE ListChildren(i=0)
j is int
// If no row number was passed in parameter,
// gets the subscript of selected row
IF i = 0 THEN i = TVT_MyTreeViewTable.Select()
j = TVT_MyTreeViewTable.GiveChild(i, taFirst)
WHILE j <> -1
Info("Row: " + j + ", Code: " + COL_Code[j])
// Call the procedure by specifying
// the current row number
ListChildren(j)
j = TVT_MyTreeViewTable.GiveChild(i, taNext)
END

Syntax

Returning the child of an element by specifying the row number Hide the details

<Result> = <TreeView Table control>.GiveChild(<Row number> , <Child>)

<Result>: Integer

Number of the row for the "child" that was found,
-1 if no "child" is found.

<TreeView Table control>: Control name

Name of TreeView Table control to use.

<Row number>: Integer

Number of the row containing the branch to use.

<Child>: Constant

Indicates the requested "child".
taFirst First child element.
taNext Next child element.

Returning the child of an element by specifying its name Hide the details

<Result> = <TreeView Table control>.GiveChild([<Element name>, ] <Child>)

<Result>: Integer

Number of the row for the "child" that was found,
-1 if no "child" is found.

<TreeView Table control>: Control name

Name of TreeView Table control to use.

<Element name>: Optional character string (with quotes)

Name of element to use. This parameter has the following format:

"<Name of root>" + TAB + ["<Name of 1st node>" + TAB + ...
["<Name of 2nd node>" + TAB + [...]]]"<Element name>"

A WLanguage error occurs if this parameter does not correspond to an existing element.

<Child>: Constant

Indicates the requested "child".
taFirst First child element.
taNext Next child element.

Remarks

The runtime speed of syntax 1 is faster than the runtime speed of syntax 2.

Component : wd260obj.dll