After lots of tinkering, I chose to go with OpenTK because I did end up figuring out VBO's for SharpGL and the performance is AWFUL compared to OpenTK. I will give an answer as to how to animate in the way that I wanted.
My solution works with Immediate Mode and using VBO's. The main concept is making a member integer (animationCount) that you increase every time your paint function gets called, and paint up to that number.
Immediate Mode:
private void drawInput(OpenGL gl)
{
gl.Begin(OpenGL.GL_LINE_STRIP);
for (int i = 0; i < animationCount; i++)
{
gl.Color((float) i, 3.0f, 0.0f);
gl.Vertex(parser.dataSet[i].X, parser.dataSet[i].Y, parser.dataSet[i].Z);
}
gl.End();
animationCount++;
}
or
VBO:
private void glControl1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
GL.DrawArrays(PrimitiveType.LineStrip, 0, animationCount);
animationCount++;
}