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Article #1918

setting stringValue of several columns in a matrix

#1918
From: gmecchia
Date: Mon, 21 Dec 1992 16:42
28 lines
1380 bytes
hi,

I am experiencing poor performance in setting string values to textfields in a matrix.

With a 6x20 matrix of TextField instances, and calling the method clearMatrices (below), the task of clearing the textfield is noticeably SLOW.  Is there room for improvement?

- clearMatrices
{
	int i;

	for (i = 0; i < ROWS_PER_PAGE; i++)		// ROWS_PER_PAGE = 20
	{
		// dateMatrix built using IB

		[[dateMatrix cellAt: i: 0] setStringValueNoCopy: ""];
		[[dateMatrix cellAt: i: 1] setStringValueNoCopy: ""];
		[[dateMatrix cellAt: i: 2] setStringValueNoCopy: ""];
		[[dateMatrix cellAt: i: 3] setStringValueNoCopy: ""];
		[[dateMatrix cellAt: i: 4] setStringValueNoCopy: ""];
		[[dateMatrix cellAt: i: 5] setStringValueNoCopy: ""];
	}
	return self;
}

Alexis Rzewski
gmecchia@phoenix.princeton.edu
rzewski@northstar.com
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From: gmecchia@toimpossible.Princeton.EDU ()
Subject: setting stringValue of several columns in a matrix
Message-ID: <1992Dec21.164237.13014@Princeton.EDU>
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Organization: Princeton University
Date: Mon, 21 Dec 1992 16:42:37 GMT
Lines: 28