public static int ConvertToInt(object objValue)
{
int result = 0;
if (!CommonAPI.IsNullValue(objValue))
{
int.TryParse(objValue.ToString(), out result);
}
return(result);
}
public static string ConvertToString(object objValue)
{
string result = "";
if (!CommonAPI.IsNullValue(objValue))
{
result = objValue.ToString();
}
return(result);
}
/// <summary>
/// Converts to double.
/// </summary>
/// <param name="objValue">The object value.</param>
/// <returns>System.Double.</returns>
public static double ConvertToDouble(object objValue)
{
double result = -1.0;
if (!CommonAPI.IsNullValue(objValue))
{
double.TryParse(objValue.ToString(), out result);
}
return(result);
}
/// <summary>
/// Previews the item.
/// </summary>
/// <param name="Symbol">The symbol.</param>
/// <param name="Width">The width.</param>
/// <param name="Height">The height.</param>
/// <returns>System.Drawing.Bitmap.</returns>
public static System.Drawing.Bitmap PreviewItem(ISymbol Symbol, int Width, int Height)
{
if (Symbol == null)
{
return(null);
}
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(Width, Height);
System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(bitmap);
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
double resolution = (double)graphics.DpiY;
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords(0.0, 0.0, (double)bitmap.Width, (double)bitmap.Height);
tagRECT tagRECT = default(tagRECT);
tagRECT.bottom = bitmap.Height;
tagRECT.left = 0;
tagRECT.right = bitmap.Width;
tagRECT.top = 0;
IDisplayTransformation displayTransformation = new DisplayTransformationClass();
displayTransformation.VisibleBounds = envelope;
displayTransformation.Bounds = envelope;
displayTransformation.set_DeviceFrame(ref tagRECT);
displayTransformation.Resolution = resolution;
System.IntPtr hdc = graphics.GetHdc();
int hDC = hdc.ToInt32();
Symbol.SetupDC(hDC, displayTransformation);
IGeometry symbolGeometry = CommonAPI.GetSymbolGeometry(Symbol, envelope);
Symbol.Draw(symbolGeometry);
Symbol.ResetDC();
graphics.ReleaseHdc(hdc);
graphics.Dispose();
return(bitmap);
}
