vtc.clearColumn

Clears all data in a column.

Syntax

vtc.clearColumn ( columnName );

Example

Data Update Functions

Arguments

name	Comments
columnName	The column name.

vtc.clearColumn clears the data in all the rows of the specified column.

Return Values

Returns zero on success or one of the Error Codes.

Parameterization

All string input arguments can be passed using standard parameterization.

Example

function callback(){
    var name = 'x' + arguments.callee.caller.arguments.callee.caller;
    lr.message( name.match(',(.*)_wrapper')[1] + '\'s callback arg:');
    for(var i=0 ;i<arguments.length; ++i){
        lr.message( 'arg[' + i + '] type: ' + typeof arguments[i] + ' =' + arguments[i]);
    }
}

function Action()
{
    var handle2 = vtc.connect('321.321.321.321', 8889, vtc.VTOPT_KEEP_ALIVE);
    var handle1 = vtc.connect('123.123.123.123', 8888, vtc.VTOPT_KEEP_ALIVE);  
    lr.message('handle1: '+ handle1.handle + ' handle2: ' + handle2.handle);
    
    if(handle2.handle!==0){
        handle2.createColumn('CID_2', callback );  
        handle2.updateMessage('CID_2', 1, 'bbbb', callback );       
    }
    
    if(handle1.handle!==0){
        handle1.createColumn('CID_1', callback );
        handle1.sendMessage('CID_1', '111', callback );
        handle1.sendMessage('CID_1', '2222', callback );
        handle1.updateMessage('CID_1', 1, 'aaaaa', callback );
        handle1.columnSize('CID_1', callback );
        handle1.queryColumn('CID_1', 1, callback );     
        handle1.rotateRow(vtc.VTSEND_SAME_ROW, callback );
        handle1.queryRow(1, callback ); 
        handle1.rotateMessage('CID_1', vtc.VTSEND_SAME_ROW, callback );
        handle1.rotateMessages1('CustomerID,CompanyName', ',', vtc.VTSEND_SAME_ROW, callback );
        handle1.clearColumn('CID_1', callback );        
        handle1.getLastError( callback );
        handle1.disconnect( callback );
    }
    
    if(handle2.handle!==0){
        handle2.disconnect( callback );
    }
}