/// <summary>
/// Check the Name and Alias properties of the given Raster Function Variable to see
/// if they contain a field name and get the value of the corresponding field if needed.
/// </summary>
/// <param name="rasterFunctionVar">The Raster Function Variable to check.</param>
/// <param name="pRow">The row corresponding to the function raster dataset.</param>
/// <returns></returns>
private object FindPropertyInRow(IRasterFunctionVariable rasterFunctionVar, IRow pRow)
{
string varName = "";
IStringArray varNames = new StrArray();
varName = rasterFunctionVar.Name;
// If the name of the variable contains '@Field'
if (varName.Contains("@Field."))
{
varNames.Add(varName); // Add it to the list of names.
}
// Check the aliases of the variable
for (int i = 0; i < rasterFunctionVar.Aliases.Count; ++i)
{
// Check the list of aliases for the '@Field' string
varName = rasterFunctionVar.Aliases.get_Element(i);
if (varName.Contains("@Field."))
{
varNames.Add(varName); // and add any that are found to the list of names.
}
}
// Use the list of names and find the value by looking up the appropriate field.
for (int i = 0; i < varNames.Count; ++i)
{
// Get the variable name containing the field string
varName = varNames.get_Element(i);
// Replace the '@Field' with nothing to get just the name of the field.
string fieldName = varName.Replace("@Field.", "");
IFields rowFields = pRow.Fields;
// Look up the index of the field name in the row.
int fieldIndex = rowFields.FindField(fieldName);
// If it is a valid index and the field type is string, return the value.
if (fieldIndex != -1 &&
((rowFields.get_Field(fieldIndex)).Type == esriFieldType.esriFieldTypeString))
{
return(pRow.get_Value(fieldIndex));
}
}
// If no value has been returned yet, return null.
return(null);
}
/// <summary>
/// Check the Name and Alias properties of the given Raster Function Variable to see
/// if they contain a field name and get the value of the corresponding field if needed.
/// </summary>
/// <param name="rasterFunctionVar">The Raster Function Variable to check.</param>
/// <param name="pRow">The row corresponding to the function raster dataset.</param>
/// <returns></returns>
private object FindPropertyInRow(IRasterFunctionVariable rasterFunctionVar, IRow pRow)
{
string varName = "";
IStringArray varNames = new StrArray();
varName = rasterFunctionVar.Name;
// If the name of the variable contains '@Field'
if (varName.Contains("@Field."))
varNames.Add(varName); // Add it to the list of names.
// Check the aliases of the variable
for (int i = 0; i < rasterFunctionVar.Aliases.Count; ++i)
{
// Check the list of aliases for the '@Field' string
varName = rasterFunctionVar.Aliases.get_Element(i);
if (varName.Contains("@Field."))
varNames.Add(varName); // and add any that are found to the list of names.
}
// Use the list of names and find the value by looking up the appropriate field.
for (int i = 0; i < varNames.Count; ++i)
{
// Get the variable name containing the field string
varName = varNames.get_Element(i);
// Replace the '@Field' with nothing to get just the name of the field.
string fieldName = varName.Replace("@Field.", "");
IFields rowFields = pRow.Fields;
// Look up the index of the field name in the row.
int fieldIndex = rowFields.FindField(fieldName);
// If it is a valid index and the field type is string, return the value.
if (fieldIndex != -1 &&
((rowFields.get_Field(fieldIndex)).Type == esriFieldType.esriFieldTypeString))
return pRow.get_Value(fieldIndex);
}
// If no value has been returned yet, return null.
return null;
}
