c# - Progress Bar not Visible -

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if create progressbar via toolbox , add following line in code: 

progressbar1.value = 40;

i able view progress bar when application runs.

however, if try create 1 via code, unable view 1 - progress bar not visible. here code:

progressbar progressbar1 = new progressbar(); progressbar1.location = new system.drawing.point(168, 180); progressbar1.height = 650; progressbar1.width = 340;             progressbar1.minimum = 20; progressbar1.maximum = 100;             progressbar1.value = 49;     progressbar1.visible = true;

if using windows forms must add form that:

this.controls.add(progressbar1);

if using wpf must that:

this.children.add(progressbar1);

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