/// <summary>
/// Modifies the source data before passing it to the target for display in the UI.
/// </summary>
/// <param name="value">The source data being passed to the target.</param>
/// <param name="targetType">The <see cref="T:System.Type"/> of data expected by the target dependency property.</param>
/// <param name="parameter">An optional parameter to be used in the converter logic.</param>
/// <param name="culture">The culture of the conversion.</param>
/// <returns>
/// The value to be passed to the target dependency property.
/// </returns>
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
if (value == null || parameter == null)
{
return(null);
}
if (this._codedValueDomain == null)
{
return(value);
}
else
{
foreach (KeyValuePair <object, string> codeVal in this._codedValueDomain.CodedValues)
{
if (codeVal.Key != null && codeVal.Key.Equals(value))
{
CodedValueSource codedValueSource = new CodedValueSource()
{
Code = codeVal.Key, DisplayName = codeVal.Value == null ? "" : codeVal.Value
};
return(codedValueSource);
}
}
}
CodedValueSource currentSource = new CodedValueSource()
{
Code = value, DisplayName = (value == null) ? " " : value.ToString(), Temp = true
};
return(currentSource);
}
/// <summary>
/// Builds a DynamicCodedValueSource object used to lookup display value.
/// </summary>
/// <param name="field">The field to build DynamicCodedValueSource for</param>
/// <param name="layerInfo">The FeatureLayerInfo used to lookup all the coded value domains </param>
/// <returns>DynamicCodedValueSource which is a collection of coded value domain values for a field.</returns>
internal static DynamicCodedValueSource BuildDynamicCodedValueSource(Field field, FeatureLayerInfo layerInfo)
{
DynamicCodedValueSource dynamicCodedValueSource = null;
foreach (object key in layerInfo.FeatureTypes.Keys)
{
FeatureType featureType = layerInfo.FeatureTypes[key];
if (featureType.Domains.ContainsKey(field.Name))
{
if (dynamicCodedValueSource == null)
dynamicCodedValueSource = new DynamicCodedValueSource();
CodedValueDomain codedValueDomain = featureType.Domains[field.Name] as CodedValueDomain;
if (codedValueDomain != null)
{
CodedValueSources codedValueSources = null;
foreach (KeyValuePair<object, string> kvp in codedValueDomain.CodedValues)
{
if (codedValueSources == null)
{
codedValueSources = new CodedValueSources();
if (field.Nullable)
{
CodedValueSource nullableSource = new CodedValueSource() { Code = null, DisplayName = " " };
codedValueSources.Add(nullableSource);
}
}
codedValueSources.Add(new CodedValueSource() { Code = kvp.Key, DisplayName = kvp.Value });
}
if (codedValueSources != null)
{
if (dynamicCodedValueSource == null)
dynamicCodedValueSource = new DynamicCodedValueSource();
dynamicCodedValueSource.Add(featureType.Id, codedValueSources);
}
}
}
}
return dynamicCodedValueSource;
}
/// <summary>
/// Modifies the source data before passing it to the target for display in the UI.
/// </summary>
/// <param name="value">The source data being passed to the target.</param>
/// <param name="targetType">The <see cref="T:System.Type"/> of data expected by the target dependency property.</param>
/// <param name="parameter">An optional parameter to be used in the converter logic.</param>
/// <param name="culture">The culture of the conversion.</param>
/// <returns>
/// The value to be passed to the target dependency property.
/// </returns>
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
if (value == null || parameter == null)
return null;
if (this._codedValueDomain == null)
return value;
else
{
foreach (KeyValuePair<object, string> codeVal in this._codedValueDomain.CodedValues)
{
if (codeVal.Key != null && codeVal.Key.Equals(value))
{
CodedValueSource codedValueSource = new CodedValueSource() { Code = codeVal.Key, DisplayName = codeVal.Value == null ? "" : codeVal.Value };
return codedValueSource;
}
}
}
CodedValueSource currentSource = new CodedValueSource() { Code = value, DisplayName = (value == null) ? " " : value.ToString(), Temp = true };
return currentSource;
}
/// <summary>
/// Returns CodedValueSources that make up the display text of each value of the TypeIDField.
/// </summary>
/// <param name="field">TypeIDField</param>
/// <param name="layerInfo">FeatureLayerInof used to construct the CodedValueSources from the FeatureTypes.</param>
/// <returns>CodedValueSoruces that contain code an value matches to all possible TypeIDField values.</returns>
internal static CodedValueSources BuildTypeIDCodedValueSource(Field field, FeatureLayerInfo layerInfo)
{
CodedValueSources codedValueSources = null;
foreach (KeyValuePair<object, FeatureType> kvp in layerInfo.FeatureTypes)
{
if (kvp.Key == null) continue;
string name = (kvp.Value != null && kvp.Value.Name != null) ? kvp.Value.Name : "";
CodedValueSource codedValueSource = new CodedValueSource() { Code = kvp.Key, DisplayName = name };
if (codedValueSources == null)
{
codedValueSources = new CodedValueSources();
if (field.Nullable)
{
CodedValueSource nullableSource = new CodedValueSource() { Code = null, DisplayName = " " };
codedValueSources.Add(nullableSource);
}
}
codedValueSources.Add(codedValueSource);
}
return codedValueSources;
}
/// <summary>
/// Returns a CodedValueSources object constructed form the CodedValueDomain value.
/// </summary>
/// <param name="field">The field to make a CodedValueSource from.</param>
/// <returns>The CodedValueSources object used for a code to value lookup.</returns>
internal static CodedValueSources BuildCodedValueSource(Field field)
{
CodedValueDomain codedValueDomain = field.Domain as CodedValueDomain;
CodedValueSources codedValueSources = null;
if (codedValueDomain != null)
{
foreach (KeyValuePair<object, string> codedValue in codedValueDomain.CodedValues)
{
if (codedValueSources == null)
{
codedValueSources = new CodedValueSources();
if (field.Nullable)
{
CodedValueSource nullableSource = new CodedValueSource() { Code = null, DisplayName = " " };
codedValueSources.Add(nullableSource);
}
}
codedValueSources.Add(new CodedValueSource() { Code = codedValue.Key, DisplayName = codedValue.Value });
}
}
return codedValueSources;
}
