private void form_DeleteInputColumn(object sender, SetInputColumnArgs args)
{
Debug.Assert(args.VirtualColumn != null, "Invalid arguments passed from the UI");
this.ClearErrors();
try
{
// Grab the used input columns from the Component.
IDTSInput input = this.ComponentMetadata.InputCollection[0];
// Get the Virtual column from the args.
IDTSVirtualInputColumn virtualInputColumn = args.VirtualColumn.Tag as IDTSVirtualInputColumn;
if (virtualInputColumn == null)
{
throw new ApplicationException(Properties.Resources.UIisInconsistentState);
}
// Get the lineageId, so we can use it to disable this column as an input column...
int lineageId = virtualInputColumn.LineageID;
this.DesigntimeComponent.SetUsageType(input.ID, this.VirtualInput, lineageId, DTSUsageType.UT_IGNORED);
}
catch (Exception ex)
{
this.ReportErrors(ex);
args.CancelAction = true;
}
}
private void form_SetInputColumn(object sender, SetInputColumnArgs args)
{
Debug.Assert(args.VirtualColumn != null, "Invalid arguments passed from the UI");
this.ClearErrors();
try
{
// Grab the used input collection. This component can only have one...
IDTSInput input = this.ComponentMetadata.InputCollection[0];
// Get the virtual column from the args...
IDTSVirtualInputColumn virtualInputColumn = args.VirtualColumn.Tag as IDTSVirtualInputColumn;
if (virtualInputColumn == null)
{
throw new ApplicationException(Properties.Resources.UIisInconsistentState);
}
// Get the lineageId, so we can use it to enable this column as an input column...
int lineageId = virtualInputColumn.LineageID;
IDTSInputColumn inputColumn = this.DesigntimeComponent.SetUsageType(input.ID, this.VirtualInput, lineageId, DTSUsageType.UT_READONLY);
// return the new column back to the GUI to stick into a Tag...
args.GeneratedColumns.InputColumn = new DataFlowElement(inputColumn.Name, inputColumn);
}
catch (Exception ex)
{
this.ReportErrors(ex);
args.CancelAction = true;
}
}
private void form_GetInputColumns(object sender, InputColumnsArgs args)
{
Debug.Assert(this.VirtualInput != null, "Virtual input is not valid.");
this.ClearErrors();
try
{
// Grab the virtual input collection, which has all the columns that are available to be selected
IDTSVirtualInputColumnCollection virtualInputColumnCollection = this.VirtualInput.VirtualInputColumnCollection;
int virtualInputColumnsCount = virtualInputColumnCollection.Count;
// Allocate the array of columns
args.InputColumns = new InputColumnElement[virtualInputColumnsCount];
// populate the array with all the available input columns.
for (int i = 0; i < virtualInputColumnsCount; i++)
{
IDTSVirtualInputColumn virtualInputColumn = virtualInputColumnCollection[i];
args.InputColumns[i].Selected = virtualInputColumn.UsageType != DTSUsageType.UT_IGNORED;
args.InputColumns[i].InputColumn = new DataFlowElement(virtualInputColumn.Name, virtualInputColumn);
args.InputColumns[i].LineageID = virtualInputColumn.LineageID;
}
}
catch (Exception ex)
{
this.ReportErrors(ex);
}
}
//Dissallow DT_NTEXT, DT_TEXT and DT_IMAGE data types.
public override bool CheckColumnForInputValidity(IDTSVirtualInputColumn vInputColumn)
{
if (vInputColumn == null)
{
return(false);
}
else
{
var dt = vInputColumn.DataType;
return(!HistoryLookupTransformation.UnsupportedInputTypes.Contains(dt));
}
}
/// <summary>
/// Gets InputColumns of Input at selected inde of InputCollection encapsulated in the FormInputColumn class
/// </summary>
/// <param name="index">Index of the Input to get InputColumns</param>
/// <returns>List of FormInputColumn</returns>
public virtual List <FormInputColumn> GetFormInputColumns(int index)
{
List <FormInputColumn> inputCols = new List <FormInputColumn>();
IDTSInput input = GetInput(index);
IDTSVirtualInput vInput = GetVirtualInput(index);
if (input != null && VirtualInput != null)
{
for (int i = 0; i < VirtualInput.VirtualInputColumnCollection.Count; i++)
//foreach (IDTSVirtualInputColumn vcol in VirtualInput.VirtualInputColumnCollection)
{
IDTSVirtualInputColumn vcol = VirtualInput.VirtualInputColumnCollection[i];
FormInputColumn icol = new FormInputColumn(vcol, i);
if (vcol.UsageType != DTSUsageType.UT_IGNORED)
{
IDTSInputColumn inputCol = input.InputColumnCollection.GetInputColumnByLineageID(vcol.LineageID);
icol.DTSInputColumn = inputCol;
}
bool isValidForInput = CheckColumnForInputValidity(vInput, input, icol);
if (isValidForInput)
{
inputCols.Add(icol);
}
}
inputCols.Sort((a, b) => a.Name.CompareTo(b.Name));
for (int i = 0; i < inputCols.Count; i++)
{
if (i >= 0 && i < inputCols.Count - 1 && inputCols[i].Name == inputCols[i + 1].Name)
{
inputCols[i].DisplayName = string.Format("{0}.{1}", inputCols[i].SourceComponent, inputCols[i].Name);
}
else if (i > 0 && i < inputCols.Count && inputCols[i].Name == inputCols[i - 1].Name)
{
inputCols[i].DisplayName = string.Format("{0}.{1}", inputCols[i].SourceComponent, inputCols[i].Name);
}
}
inputCols.Sort((a, b) => a.Index.CompareTo(b.Index));
}
return(inputCols);
}
public Lookup AddLookupColumn(LookupColumn lookupItem)
{
Refresh();
if (!lookupItem.IsReplacingOutput)
{
Pipe.IDTSOutputColumn100 newColumn = ComponentWrapper.InsertOutputColumnAt(SSISDefaultOutput.ID, 0, lookupItem.OutputAlias, "");
ComponentWrapper.SetOutputColumnProperty(SSISDefaultOutput.ID, newColumn.ID, "CopyFromReferenceColumn", lookupItem.Name);
}
else
{
Pipe.IDTSVirtualInputColumn100 virtualColumn = base.FindVirtualInputColumn(lookupItem.ReplaceColumnName);
Pipe.IDTSInputColumn100 inputColumn = ComponentWrapper.SetUsageType(SSISDefaultInput.ID, base.DefaultVirtualInput, virtualColumn.LineageID, Pipe.DTSUsageType.UT_READWRITE);
ComponentWrapper.SetInputColumnProperty(SSISDefaultInput.ID, inputColumn.ID, "CopyFromReferenceColumn", lookupItem.Name);
}
return(this);
}
/// <summary>
/// Called repeatedly when the component is edited in the designer, and once at the beginning of execution.
/// Verifies the following:
/// 1. Check that there are no outputs
/// 2. Check that there is only one input
/// 3. Check that all upstream columns are present.
/// </summary>
/// <returns>The status of the validation</returns>
public override DTSValidationStatus Validate()
{
bool cancel = false;
if (ComponentMetaData.InputCollection.Count != 1)
{
ComponentMetaData.FireError(0, ComponentMetaData.Name, "The input collection count is not 1.", String.Empty, 0, out cancel);
return(DTSValidationStatus.VS_ISCORRUPT);
}
if (ComponentMetaData.OutputCollection.Count != 0)
{
ComponentMetaData.FireError(0, ComponentMetaData.Name, "The output collection count is not 0.", String.Empty, 0, out cancel);
return(DTSValidationStatus.VS_ISCORRUPT);
}
IDTSInput input = ComponentMetaData.InputCollection[0];
IDTSVirtualInput vInput = input.GetVirtualInput();
if (input.HasSideEffects == false)
{
ComponentMetaData.FireError(0, ComponentMetaData.Name, "The input does not have HasSideEffects set.", String.Empty, 0, out cancel);
return(DTSValidationStatus.VS_ISCORRUPT);
}
foreach (IDTSInputColumn inputColumn in input.InputColumnCollection)
{
try
{
IDTSVirtualInputColumn vColumn = vInput.VirtualInputColumnCollection.GetVirtualInputColumnByLineageID(inputColumn.LineageID);
}
catch
{
ComponentMetaData.FireError(0, ComponentMetaData.Name, "The input column " + inputColumn.IdentificationString + " does not match a column in the upstream output.", String.Empty, 0, out cancel);
areInputColumnsValid = false;
return(DTSValidationStatus.VS_NEEDSNEWMETADATA);
}
}
//return base.Validate();
return(DTSValidationStatus.VS_ISVALID);
}
private void btnOk_Click(object sender, EventArgs e)
{
if (properties.NullColumnLineageId != -1)
{
IDTSInput input = UIHelper.GetInput(0);
IDTSVirtualInput vInput = UIHelper.GetVirtualInput(0);
IDTSVirtualInputColumn vCol = vInput.VirtualInputColumnCollection.GetVirtualInputColumnByLineageID(properties.NullColumnLineageId);;
IDTSInputColumn col;
if (vCol.UsageType != DTSUsageType.UT_IGNORED)
{
col = input.InputColumnCollection.GetInputColumnByLineageID(vCol.LineageID);
}
else
{
col = UIHelper.DesignTimeComponent.SetUsageType(input.ID, vInput, properties.NullColumnLineageId, DTSUsageType.UT_READONLY);
}
IDTSCustomProperty nullCol = col.CustomPropertyCollection[Resources.LookupErrorAggIsNullColumnName];
nullCol.Value = true;
}
this.Close();
}
public virtual bool CheckColumnForInputValidity(IDTSVirtualInputColumn vInputColumn)
{
return(true);
}
public FormInputColumn(IDTSVirtualInputColumn vcol, int index)
{
DTSVirtualColumn = vcol;
displayName = vcol.Name;
Index = index;
}
private void MapInputColumn(Pipe.IDTSVirtualInputColumn100 virtualColumn, string destinationColumnName)
{
Pipe.IDTSInputColumn100 inputColumn = ComponentWrapper.SetUsageType(SSISDefaultInput.ID, DefaultVirtualInput, virtualColumn.LineageID, Pipe.DTSUsageType.UT_READONLY);
ComponentWrapper.MapInputColumn(SSISDefaultInput.ID, inputColumn.ID, SSISDefaultInput.ExternalMetadataColumnCollection[destinationColumnName].ID);
}
public OutputColumnDetail(IDTSVirtualInputColumn virtualInputColumn, string aliasName, int id)
{
VirtualInputColumn = virtualInputColumn;
AliasName = aliasName;
ID = id;
}
