/// <summary>
/// Gets the editor style used by the <see cref="EditValue"/> method.
/// If there are available bindable fields, returns DropDown, otherwise Modal.
/// </summary>
public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext ctx)
{
object instance;
FlexDesignerHostServices services;
if (!Util.EditableModelHelper.GetInstanceAndServices(ctx, out instance, out services))
{
return(UITypeEditorEditStyle.None);
}
if (ctx.PropertyDescriptor.PropertyType == typeof(ScriptEnumValue <SortDirection>))
{
_listBox.FillWithSortDirections();
}
else
{
var grs = services.GetGetReportService();
if (grs == null)
{
return(UITypeEditorEditStyle.None);
}
C1FlexReport report = grs.Report;
if (report == null)
{
return(UITypeEditorEditStyle.None);
}
string dataSourceName;
ScriptEditorContextKind contextKind;
EditorScriptContextBase.GuessContextName(report, instance, ctx.PropertyDescriptor.Name, out dataSourceName, out contextKind);
if (contextKind == ScriptEditorContextKind.DataView)
{
return(UITypeEditorEditStyle.Modal);
}
if (contextKind == ScriptEditorContextKind.MetaView)
{
dataSourceName = report.DataSourceName;
}
var ds = report.DataSources.FindByName(dataSourceName);
_listBox.FillWithFields(report, ds, contextKind);
}
if (_listBox.Items.Count == 1) // just the expression editor
{
return(UITypeEditorEditStyle.Modal);
}
// done
return(UITypeEditorEditStyle.DropDown);
}
/// <summary>
/// Edits the value of the specified object.
/// </summary>
/// <param name="ctx">An <see cref="ITypeDescriptorContext"/> that can be used to gain additional context information.</param>
/// <param name="provider">An <see cref="IServiceProvider"/> through which editing services may be obtained.</param>
/// <param name="value">An instance of the value being edited.</param>
/// <returns>A string containing the new value of the object.</returns>
override public object EditValue(ITypeDescriptorContext ctx, IServiceProvider provider, object value)
{
object instance;
FlexDesignerHostServices services;
if (!Util.EditableModelHelper.GetInstanceAndServices(ctx, out instance, out services))
{
return(value);
}
IGetReportsService grs = services.GetGetReportService();
IScriptEditorService ses = services.GetScriptEditorService();
if (grs == null || ses == null)
{
return(value);
}
var report = grs.Report;
if (report == null)
{
return(value);
}
// guess script context
string dataSourceName;
ScriptEditorContextKind contextKind;
EditorScriptContextBase.GuessContextName(report, instance, ctx.PropertyDescriptor.Name, out dataSourceName, out contextKind);
// Run the editor:
object result;
if (ses.EditScript(report, dataSourceName, contextKind, instance, ctx.PropertyDescriptor.Name, null, IsExpression, out result))
{
return(result);
}
// editor was cancelled - return original value
return(value);
}
/// <summary>
/// Edits the value of the specified object.
/// </summary>
/// <param name="ctx">An <see cref="ITypeDescriptorContext"/> that can be used to gain additional context information.</param>
/// <param name="provider">An <see cref="IServiceProvider"/> through which editing services may be obtained.</param>
/// <param name="value">An instance of the value being edited.</param>
/// <returns>A string containing the new value of the object.</returns>
public override object EditValue(ITypeDescriptorContext ctx, IServiceProvider provider, object value)
{
// sanity
if (provider == null)
{
return(value);
}
object instance;
FlexDesignerHostServices services;
if (!Util.EditableModelHelper.GetInstanceAndServices(ctx, out instance, out services))
{
return(value);
}
IGetReportsService grs = services.GetGetReportService();
IScriptEditorService ses = services.GetScriptEditorService();
if (grs == null || ses == null)
{
return(value);
}
C1FlexReport report = grs.Report;
if (report == null)
{
return(value);
}
// Handle both string and ScriptStringValue properties:
Type targetType = ctx != null && ctx.PropertyDescriptor != null ? ctx.PropertyDescriptor.PropertyType : typeof(string);
// script editor call:
Func <object, object> doEdit = (v_) =>
{
string dataSourceName;
ScriptEditorContextKind contextKind;
EditorScriptContextBase.GuessContextName(report, instance, ctx.PropertyDescriptor.Name, out dataSourceName, out contextKind);
object result;
if (ses.EditScript(report, dataSourceName, contextKind, instance, ctx.PropertyDescriptor.Name, null, true, out result))
{
return(result);
}
else
{
return(v_);
}
};
// select editor style
UITypeEditorEditStyle style = GetEditStyle(ctx);
object retValue;
switch (style)
{
case UITypeEditorEditStyle.None:
retValue = value;
break;
case UITypeEditorEditStyle.Modal:
retValue = doEdit(value);
break;
case UITypeEditorEditStyle.DropDown:
_edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if (_edSvc != null)
{
// show the list
_edSvc.DropDownControl(_listBox);
_edSvc = null;
IScriptValueListItem selectedItem = _listBox.GetSelectedItem();
if (selectedItem == null)
{
retValue = value;
}
else if (selectedItem.IsScriptEditor)
{
retValue = doEdit(value);
}
else if (selectedItem.IsValue)
{
retValue = Util.ScriptValueHelper.TextToObject(selectedItem.Text, targetType, selectedItem.IsExpression);
}
else
{
retValue = value;
}
}
else
{
retValue = value;
}
break;
default:
System.Diagnostics.Debug.Assert(false);
retValue = null;
break;
}
// return whatever we got
return(retValue);
}