FormListControl.delete Method

Article
2014-04-11

Deletes a specified item from a form list control.

Syntax

public boolean delete(int Idx)

Run On

Client

Parameters

Idx
Type: int
The zero-based index for the item that is being deleted.

Return Value

Type: boolean
true if the item is deleted; otherwise, false.

Examples

The following example shows a call to the delete method to delete an item from the form list control.

The while select statement retrieves account numbers from the CustTable table and then stores the data in a container. The items in the variable are added to the form list control by calling the FormListControl.addItem method.

static void createForm2(Args _args) 
{ 
    Args args; 
    Form form; 
    FormRun formRun; 
    FormBuildDesign formBuildDesign; 
    FormBuildDataSource formBuildDataSource; 
    FormBuildListControl formBuildListControl; 
    FormListControl formListControl; 
    FormListItem formListItem; 
    int idx4; 
    str string; 
    container conAccountNum; 
    DictTable dictTable; 
    CustTable custTable; 
    int numAccounts; 
    int i; 
    int item; 
    int numItems; 
    boolean itemDel; 
 
    // Create the form header. 
    form = new Form(); 
 
    // Add data sources to the form. 
    dictTable = new DictTable(tableNum(custTable)); 
    formBuildDataSource = form.addDataSource(dictTable.name()); 
    formBuildDataSource.table(dictTable.id()); 
 
    // Create the form design. 
    formBuildDesign = form.addDesign("Design"); 
    formBuildDesign.caption("myForm"); 
 
    // Add a form list control. 
    formBuildListControl = 
 formBuildDesign.addControl(FormControlType::ListView,"List"); 
    idx4 = formBuildListControl.id(); 
 
    args = new Args(); 
    args.object(form); 
 
    // Create the run-time form. 
    formRun = classfactory.formRunClass(args); 
 
    formRun.run(); 
    formRun.detach(); 
 
    formListControl = formRun.control(idx4); 
 
    // Add items to the form list control. 
    while select custTable 
        where custTable.AccountNum >= "4000" && custTable.AccountNum <= "4040" 
    { 
        conAccountNum += [[custTable.AccountNum]]; 
    } 
 
    numAccounts = conlen(conAccountNum); 
    for(i = 1; i <= numAccounts; i++) 
    { 
        string = conPeek(conAccountNum,i); 
        formListItem = new FormListItem(string); 
        item = formListControl.addItem(formListItem); 
    } 
 
    // Delete an item. 
    itemDel = formListControl.delete(2); 
}

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