/****************************************************************************************/
#region Constructors
/// <summary>
/// Initialize the <see cref="ExcelConditionalFormattingCollection"/>
/// </summary>
/// <param name="worksheet"></param>
internal ExcelConditionalFormattingCollection(
ExcelWorksheet worksheet)
: base(
worksheet.NameSpaceManager,
worksheet.WorksheetXml.DocumentElement)
{
Require.Argument(worksheet).IsNotNull("worksheet");
_worksheet = worksheet;
SchemaNodeOrder = _worksheet.SchemaNodeOrder;
// Look for all the <conditionalFormatting>
var conditionalFormattingNodes = TopNode.SelectNodes(
"//" + ExcelConditionalFormattingConstants.Paths.ConditionalFormatting,
_worksheet.NameSpaceManager);
// Check if we found at least 1 node
if ((conditionalFormattingNodes != null) &&
(conditionalFormattingNodes.Count > 0))
{
// Foreach <conditionalFormatting>
foreach (XmlNode conditionalFormattingNode in conditionalFormattingNodes)
{
// Check if @sqref attribute exists
if (conditionalFormattingNode.Attributes[ExcelConditionalFormattingConstants.Attributes.Sqref] == null)
{
throw new Exception(
ExcelConditionalFormattingConstants.Errors.MissingSqrefAttribute);
}
// Get the @sqref attribute
ExcelAddress address = new ExcelAddress(
conditionalFormattingNode.Attributes[ExcelConditionalFormattingConstants.Attributes.Sqref].Value);
// Check for all the <cfRules> nodes and load them
var cfRuleNodes = conditionalFormattingNode.SelectNodes(
ExcelConditionalFormattingConstants.Paths.CfRule,
_worksheet.NameSpaceManager);
// Checking the count of cfRuleNodes "materializes" the collection which prevents a rare infinite loop bug
if (cfRuleNodes.Count == 0)
{
continue;
}
// Foreach <cfRule> inside the current <conditionalFormatting>
foreach (XmlNode cfRuleNode in cfRuleNodes)
{
// Check if @type attribute exists
if (cfRuleNode.Attributes[ExcelConditionalFormattingConstants.Attributes.Type] == null)
{
throw new Exception(
ExcelConditionalFormattingConstants.Errors.MissingTypeAttribute);
}
// Check if @priority attribute exists
if (cfRuleNode.Attributes[ExcelConditionalFormattingConstants.Attributes.Priority] == null)
{
throw new Exception(
ExcelConditionalFormattingConstants.Errors.MissingPriorityAttribute);
}
// Get the <cfRule> main attributes
string typeAttribute = ExcelConditionalFormattingHelper.GetAttributeString(
cfRuleNode,
ExcelConditionalFormattingConstants.Attributes.Type);
int priority = ExcelConditionalFormattingHelper.GetAttributeInt(
cfRuleNode,
ExcelConditionalFormattingConstants.Attributes.Priority);
// Transform the @type attribute to EPPlus Rule Type (slighty diferente)
var type = ExcelConditionalFormattingRuleType.GetTypeByAttrbiute(
typeAttribute,
cfRuleNode,
_worksheet.NameSpaceManager);
// Create the Rule according to the correct type, address and priority
var cfRule = ExcelConditionalFormattingRuleFactory.Create(
type,
address,
priority,
_worksheet,
cfRuleNode);
// Add the new rule to the list
if (cfRule != null)
{
_rules.Add(cfRule);
}
}
}
}
}
/// <summary>
/// Initialize the <see cref="ExcelConditionalFormattingCollection"/>
/// </summary>
/// <param name="worksheet">The worksheet from which to construct the ConditionalFormattings.</param>
internal ExcelConditionalFormattingCollection(
ExcelWorksheet worksheet)
: base(
worksheet.NameSpaceManager,
worksheet.WorksheetXml.DocumentElement)
{
Require.Argument(worksheet).IsNotNull("worksheet");
this.ExcelWorksheet = worksheet;
this.SchemaNodeOrder = this.ExcelWorksheet.SchemaNodeOrder;
this.ConditionalFormattingRules = new List <IExcelConditionalFormattingRule>();
// Look for all the <conditionalFormatting> nodes.
var conditionalFormattingNodes = this.TopNode.SelectNodes(
"//" + ExcelConditionalFormattingConstants.Paths.ConditionalFormatting,
this.ExcelWorksheet.NameSpaceManager);
if ((conditionalFormattingNodes != null) && (conditionalFormattingNodes.Count > 0))
{
foreach (XmlNode conditionalFormattingNode in conditionalFormattingNodes)
{
// Try to get the @sqref attribute. If it is missing, do not add a cf rule for this node.
string sqref = conditionalFormattingNode.Attributes[ExcelConditionalFormattingConstants.Attributes.Sqref]?.Value;
if (string.IsNullOrEmpty(sqref))
{
continue;
}
ExcelAddress address = new ExcelAddress(sqref);
// Check for all the <cfRules> nodes and load them.
var cfRuleNodes = conditionalFormattingNode.SelectNodes(
ExcelConditionalFormattingConstants.Paths.CfRule,
this.ExcelWorksheet.NameSpaceManager);
// Foreach <cfRule> inside the current <conditionalFormatting>.
foreach (XmlNode cfRuleNode in cfRuleNodes)
{
// Check if @type attribute exists.
if (cfRuleNode.Attributes[ExcelConditionalFormattingConstants.Attributes.Type] == null)
{
throw new Exception(ExcelConditionalFormattingConstants.Errors.MissingTypeAttribute);
}
// Check if @priority attribute exists.
if (cfRuleNode.Attributes[ExcelConditionalFormattingConstants.Attributes.Priority] == null)
{
throw new Exception(ExcelConditionalFormattingConstants.Errors.MissingPriorityAttribute);
}
// Get the <cfRule> main attributes.
string typeAttribute = ExcelConditionalFormattingHelper.GetAttributeString(
cfRuleNode,
ExcelConditionalFormattingConstants.Attributes.Type);
int priority = ExcelConditionalFormattingHelper.GetAttributeInt(
cfRuleNode,
ExcelConditionalFormattingConstants.Attributes.Priority);
// Transform the @type attribute to EPPlus Rule Type (slighty different).
var type = ExcelConditionalFormattingRuleType.GetTypeByAttrbiute(
typeAttribute,
cfRuleNode,
this.ExcelWorksheet.NameSpaceManager);
var cfRule = ExcelConditionalFormattingRuleFactory.Create(
type,
address,
priority,
this.ExcelWorksheet,
cfRuleNode);
if (cfRule != null)
{
this.ConditionalFormattingRules.Add(cfRule);
}
}
}
}
}
