vtc.queryColumn

Retrieves the data in a field.

Syntax

vtc.queryColumn ( columnName, rowIndex );

Example

Query Functions

Arguments

name	Comments
columnName	The name of the column.
rowIndex	The number of the row. The first row has index 1.

vtc.queryColumn retrieves the data in a field and stores it in a parameter with the same name as the column.

If there is no data in a cell, the output is NULL.

Return Values

Returns zero on success or one of the Error Codes.

Parameterization

All string input arguments can be passed using standard 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 );
    }
}