Many people may have the question on how to dynamically set the folder path for Foreach File Enumerator in a Foreach Loop Editor. Surprisingly I do not find a blog/article talking about this issue clearly from internet search. So I decide to compose one.

It is quite easy to implement the feature if you know the property Directory of the Foreach File Enumerator. Now let us look at the steps:

1. Create two SSIS variables from the SSIS menu, saying vFileName and vFolderName.

2. Drag a Foreach Loop Container task to the Control Flow panel, double click it to pop up the property window.

3. Switch to the Collection tab, choose the Enumerator as "Foreach File Enumerator", expand Expressions and add two properties "Directory" for folder path and "FileSpec" for filtering specific types of files. Specify "@[User::vFolderName]" to Directory and "*.txt" to FileSpec.

4. Switch to the Variable Mappings and specify User::vFileName mapping to the index 0.

5. Click OK. To show you a sample how it will work, I further add two Script tasks one for pre-setting the folder path while the other output the text files in it.

6. Drag a Script Task into the Control Flow panel, rename it to "Set Folder Path Task", double click the task and specify "User::vFolderName" into the ReadWriteVariables field.

7. Click Edit Script... and add the following code:

       public void Main()

        {

            // TODO: Add your code here

            Dts.Variables["vFolderName"].Value = @"D:\Test\SSIS Foreach Files";

            Dts.TaskResult = (int)ScriptResults.Success;

    }

8. Connect the script task to the Foreach Loop Container and drag a new Script Task into the container, and rename the new script task as "Output file name task".

9. Double click the "Output file name task", specify "User::vFileName" to the ReadOnly Variables and click the "Edit Script..." button.

10. Add the following code to output the files names:

        public void Main()

        {

            // TODO: Add your code here

            bool fireAgain = false;

            Dts.Events.FireInformation(0, "", Dts.Variables["vFileName"].Value.ToString(), "", 0, ref fireAgain);

            Dts.TaskResult = (int)ScriptResults.Success;

        }

Recently some customers asked me how to use reportviewer 2010 in their visual studio 2008 project. ReportViewer 2010 fully supports both Visual Studio 2008 and Visual Studio 2010. The problem is that in Visual Studio 2008, you cannot directly use it in design time. This is a helpful hint, so I decided to dig it out. Really it works very well but need your efforts on extracting the DLLs from GAC and manually coding to create the reportviewer control. Here are my steps to show you how to make it work.

1. Download the ReportViewer 2010 Redistributable package from https://www.microsoft.com/downloads/details.aspx?FamilyID=a941c6b2-64dd-4d03-9ca7-4017a0d164fd&displaylang=en.

2. Install it on your computer, then the Microsoft.ReportViewer.WinForm.dll will be registered in GAC, however you could not directly reference this assembly from GAC in Visual Studio 2008. Referencing the assembly file is needed however the dll is not installed in other place. So the next step is how to extract the assembly file from the GAC.

3. John's blog showed some ways to extract assemblies from GAC. I used Windows Command Prompt to extract the Microsoft.ReportViewer.Winform.dll and Microsoft.ReportViewer. Common.dll out to my project's bin folder. You can first use the "cd" command to redirect the folder to " C:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WinForms", then use the "dir" command to check which folder is for ReportViewer 10.0 and run "cd" again to redirect to that folder, then run copy command like "copy Microsoft.ReportViewer.Winform.dll D:\Projects\MyTestReport\Bin\Microsoft.ReportViewer.Winform.dll" to copy the file to your project's bin folder. As well you can copy the Microsoft.ReportViewer. Common.dll file.

4. Then in Visual Studio 2008, right click the Reference folder, click "Add Reference...", switch to the Browse tab and add the references to these two assemblies. You can also add the ReportViewer control to the ToolBox via Choose Items by selecting the assembly Microsoft.ReportViewer.Winform.dll in the bin folder, but you will find that the control does not have real UI appearance. It just shows as a component but it is good since you can set properties via the property window.

5. Refer to those auto-generated code for the ReportViewer 2008 control in your project, manually add the code for your Reportviewer 2010 control to your Windows Form application accordingly.

6. For example, you have a form named Form1, modify the InitializeComponent function in Form1.Designer.cs as follows.

7. In the Form_Load event, you can fill the data to refresh your report just like ReportViewer 2008.