internal HeaderInfo GenerateHeaderInfo(PSObject input, TableControlBody tableBody, OutGridViewCommand parentCmdlet)
{
HeaderInfo headerInfo = new HeaderInfo();
// This verification is needed because the database returns "LastWriteTime" value for file system objects
// as strings and it is used to detect this situation and use the actual field value.
bool fileSystemObject = typeof(FileSystemInfo).IsInstanceOfType(input.BaseObject);
if (tableBody != null) // If the tableBody is null, the TableControlBody info was not put into the database.
{
// Generate HeaderInfo from the type information database.
List <TableRowItemDefinition> activeRowItemDefinitionList = GetActiveTableRowDefinition(tableBody, input);
int col = 0;
foreach (TableRowItemDefinition rowItem in activeRowItemDefinitionList)
{
ColumnInfo columnInfo = null;
string displayName = null;
TableColumnHeaderDefinition colHeader = null;
// Retrieve a matching TableColumnHeaderDefinition
if (col < tableBody.header.columnHeaderDefinitionList.Count)
{
colHeader = tableBody.header.columnHeaderDefinitionList[col];
}
if (colHeader != null && colHeader.label != null)
{
displayName = _typeInfoDatabase.displayResourceManagerCache.GetTextTokenString(colHeader.label);
}
FormatToken token = null;
if (rowItem.formatTokenList.Count > 0)
{
token = rowItem.formatTokenList[0];
}
if (token != null)
{
FieldPropertyToken fpt = token as FieldPropertyToken;
if (fpt != null)
{
if (displayName == null)
{
// Database does not provide a label(DisplayName) for the current property, use the expression value instead.
displayName = fpt.expression.expressionValue;
}
if (fpt.expression.isScriptBlock)
{
MshExpression ex = _expressionFactory.CreateFromExpressionToken(fpt.expression);
// Using the displayName as a propertyName for a stale PSObject.
const string LastWriteTimePropertyName = "LastWriteTime";
// For FileSystem objects "LastWriteTime" property value should be used although the database indicates that a script should be executed to get the value.
if (fileSystemObject && displayName.Equals(LastWriteTimePropertyName, StringComparison.OrdinalIgnoreCase))
{
columnInfo = new OriginalColumnInfo(displayName, displayName, LastWriteTimePropertyName, parentCmdlet);
}
else
{
columnInfo = new ExpressionColumnInfo(displayName, displayName, ex);
}
}
else
{
columnInfo = new OriginalColumnInfo(fpt.expression.expressionValue, displayName, fpt.expression.expressionValue, parentCmdlet);
}
}
else
{
TextToken tt = token as TextToken;
if (tt != null)
{
displayName = _typeInfoDatabase.displayResourceManagerCache.GetTextTokenString(tt);
columnInfo = new OriginalColumnInfo(tt.text, displayName, tt.text, parentCmdlet);
}
}
}
if (columnInfo != null)
{
headerInfo.AddColumn(columnInfo);
}
col++;
}
}
return(headerInfo);
}
