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Editorial Team
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Asked: 2026-05-24T05:04:02+00:00

I have map control on main form. Problem is, when form designer generate code

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I have map control on main form. Problem is, when form designer generate code then overrides value of variable (RouteOverlay and MarkerOverlay) with new value and i don’t want that.

Before generated code 

//Map.cs
RouteOverlay = new GMapOverlay(this, "routes");
MarkerOverlay = new GMapOverlay(this, "markers");

After generated code 

//MainForm.designer.cs
this.map1.MarkerOverlay = ((GMap.NET.WindowsForms.GMapOverlay)(resources.GetObject("map1.MarkerOverlay")));
this.map1.RouteOverlay = ((GMap.NET.WindowsForms.GMapOverlay)(resources.GetObject("map1.RouteOverlay")));
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1 Answer

  1. Editorial Team

    Add [DesignerSerializationVisiblity(DesignerSerializationVisiblity.Hidden)] to the properties.
    This will completely prevent the designer from saving them.

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