protected virtual void OnRaiseEditExpressionSelected(EditExpressionSelectedEventArgs e)
{
// Make a temporary copy of the event to avoid possibility of
// a race condition if the last subscriber unsubscribes
// immediately after the null check and before the event is raised.
EventHandler <EditExpressionSelectedEventArgs> handler = EditExpressionSelected;
// Event will be null if there are no subscribers
if (handler != null)
{
handler(this, e);
}
}
protected virtual void OnRaiseEditExpressionSelected(EditExpressionSelectedEventArgs e)
{
// Make a temporary copy of the event to avoid possibility of
// a race condition if the last subscriber unsubscribes
// immediately after the null check and before the event is raised.
EventHandler<EditExpressionSelectedEventArgs> handler = EditExpressionSelected;
// Event will be null if there are no subscribers
if (handler != null)
{
handler(this, e);
}
}
void expressionListWindow_EditExpressionSelected(object sender, EditExpressionSelectedEventArgs e)
{
try
{
Package package = null;
DtsContainer container = null;
if (win == null)
{
return;
}
try
{
package = GetCurrentPackage();
if (package == null)
{
return;
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.Assert(false, ex.ToString());
return;
}
// Parameters for Expression Editor
Variables variables = null;
VariableDispenser variableDispenser = null;
string propertyName = string.Empty;
Type propertyType = null;
// Target objects
IDTSPropertiesProvider propertiesProvider = null;
Variable variable = null;
PrecedenceConstraint constraint = null;
// Get the container
container = FindContainer(package, e.ContainerID);
// Get the property details and variable objects for the editor
if (e.Type == typeof(Variable))
{
variable = FindVariable(container, e.ObjectID);
propertyName = "Value";
propertyType = System.Type.GetType("System." + variable.DataType.ToString());
variables = container.Variables;
variableDispenser = container.VariableDispenser;
}
else if (e.Type == typeof(PrecedenceConstraint))
{
constraint = FindConstraint(container, e.ObjectID);
propertyName = "Expression";
propertyType = typeof(bool);
variables = container.Variables;
variableDispenser = container.VariableDispenser;
}
else
{
if (e.Type == typeof(ConnectionManager))
{
propertiesProvider = FindConnectionManager(package, e.ObjectID) as IDTSPropertiesProvider;
}
else if (e.Type == typeof(ForEachEnumerator))
{
ForEachLoop forEachLoop = container as ForEachLoop;
propertiesProvider = forEachLoop.ForEachEnumerator as IDTSPropertiesProvider;
}
else
{
propertiesProvider = container as IDTSPropertiesProvider;
}
if (propertiesProvider != null)
{
DtsProperty property = propertiesProvider.Properties[e.Property];
propertyName = property.Name;
propertyType = PackageHelper.GetTypeFromTypeCode(property.Type);
variables = container.Variables;
variableDispenser = container.VariableDispenser;
}
else
{
throw new Exception(string.Format(CultureInfo.InvariantCulture, "Expression editing not supported on this object ({0}).", e.ObjectID));
}
}
// Show the editor
Konesans.Dts.ExpressionEditor.ExpressionEditorPublic editor = new Konesans.Dts.ExpressionEditor.ExpressionEditorPublic(variables, variableDispenser, propertyType, propertyName, e.Expression);
if (editor.ShowDialog() == DialogResult.OK)
{
// Get expression
string expression = editor.Expression;
if (expression == null || string.IsNullOrEmpty(expression.Trim()))
{
expression = null;
}
// Set the new expression on the target object
object objectChanged = null;
if (variable != null)
{
if (expression == null)
{
variable.EvaluateAsExpression = false;
}
variable.Expression = expression;
objectChanged = variable;
}
else if (constraint != null)
{
if (expression == null)
{
constraint.EvalOp = DTSPrecedenceEvalOp.Constraint;
}
constraint.Expression = expression;
objectChanged = constraint;
}
else if (propertiesProvider != null)
{
// TaskHost, Sequence, ForLoop, ForEachLoop and ConnectionManager
propertiesProvider.SetExpression(e.Property, expression);
objectChanged = propertiesProvider;
}
expressionListWindow_RefreshExpressions(null, null);
// Finish displaying expressions list before you mark the package
// as dirty (which runs the expression highlighter)
System.Windows.Forms.Application.DoEvents();
SetPackageAsDirty(package, expression, objectChanged);
}
}
catch (Exception ex)
{
throw ex;
}
}
void expressionListWindow_EditExpressionSelected(object sender, EditExpressionSelectedEventArgs e)
{
try
{
Package package = null;
DtsContainer container = null;
if (win == null)
{
return;
}
try
{
package = GetCurrentPackage();
if (package == null)
{
return;
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.Assert(false, ex.ToString());
return;
}
// Parameters for Expression Editor
Variables variables = null;
VariableDispenser variableDispenser = null;
string propertyName = string.Empty;
Type propertyType = null;
// Target objects
IDTSPropertiesProvider propertiesProvider = null;
Variable variable = null;
PrecedenceConstraint constraint = null;
// Get the container
container = SSISHelpers.FindContainer(package, e.ContainerID);
// Get the property details and variable objects for the editor
if (e.Type == typeof(Variable))
{
variable = SSISHelpers.FindVariable(container, e.ObjectID);
propertyName = "Value";
propertyType = System.Type.GetType("System." + variable.DataType.ToString());
variables = container.Variables;
variableDispenser = container.VariableDispenser;
}
else if (e.Type == typeof(PrecedenceConstraint))
{
constraint = SSISHelpers.FindConstraint(container, e.ObjectID);
propertyName = "Expression";
propertyType = typeof(bool);
variables = container.Variables;
variableDispenser = container.VariableDispenser;
}
else
{
if (e.Type == typeof(ConnectionManager))
{
propertiesProvider = SSISHelpers.FindConnectionManager(package, e.ObjectID) as IDTSPropertiesProvider;
}
else if (e.Type == typeof(ForEachEnumerator))
{
ForEachLoop forEachLoop = container as ForEachLoop;
propertiesProvider = forEachLoop.ForEachEnumerator as IDTSPropertiesProvider;
}
else
{
propertiesProvider = container as IDTSPropertiesProvider;
}
if (propertiesProvider != null)
{
DtsProperty property = propertiesProvider.Properties[e.Property];
propertyName = property.Name;
propertyType = PackageHelper.GetTypeFromTypeCode(property.Type);
variables = container.Variables;
variableDispenser = container.VariableDispenser;
}
else
{
throw new Exception(string.Format(CultureInfo.InvariantCulture, "Expression editing not supported on this object ({0}).", e.ObjectID));
}
}
// Show the editor
Konesans.Dts.ExpressionEditor.ExpressionEditorPublic editor = new Konesans.Dts.ExpressionEditor.ExpressionEditorPublic(variables, variableDispenser, propertyType, propertyName, e.Expression);
editor.Editor.ExpressionFont = ExpressionFont;
editor.Editor.ExpressionColor = ExpressionColor;
editor.Editor.ResultFont = ResultFont;
editor.Editor.ResultColor = ResultColor;
if (editor.ShowDialog() == DialogResult.OK)
{
// Get expression
string expression = editor.Expression;
if (expression == null || string.IsNullOrEmpty(expression.Trim()))
{
expression = null;
}
// Set the new expression on the target object
object objectChanged = null;
if (variable != null)
{
if (expression == null)
{
variable.EvaluateAsExpression = false;
}
variable.Expression = expression;
objectChanged = variable;
}
else if (constraint != null)
{
if (expression == null)
{
constraint.EvalOp = DTSPrecedenceEvalOp.Constraint;
}
constraint.Expression = expression;
objectChanged = constraint;
}
else if (propertiesProvider != null)
{
// TaskHost, Sequence, ForLoop, ForEachLoop and ConnectionManager
propertiesProvider.SetExpression(e.Property, expression);
objectChanged = propertiesProvider;
}
expressionListWindow_RefreshExpressions(null, null);
// Finish displaying expressions list before you mark the package
// as dirty (which runs the expression highlighter)
System.Windows.Forms.Application.DoEvents();
SetPackageAsDirty(package, expression, objectChanged);
}
}
catch (Exception ex)
{
throw ex;
}
}
