C#

using System.ComponentModel;
 
PropertyDescriptorCollection pdcMyControl = TypeDescriptor.GetProperties(MyControl);
 
foreach(PropertyDescriptor pdMyControl in pdcMyControl)
{
    System.Type  pd_typ = pdMyControl.PropertyType.GetInterface("ICollection");
    if (pd_typ != null) 
    {
	ICollection ItemsMyControl = pdMyControl.GetValue(MyControl) as ICollection;
	foreach (object obj in ItemsMyControl)
	{
            //Maybe a recursion needed here!
            //...
        }
    }
    else
    {
	//pdMyControl.GetValue(MyControl)); //returns object
    }
}

• To get all the properties of a type, use the Type.GetProperties() method. Pass in the following binding flags: Instance, Public, FlattenHierarchy. This makes sure that only public members that are instance rather than static are returned, and that inherited properties are included.

• To get the data type of a property use the PropertyInfo.PropertyType method.
• A simple way to see if a property's type is one of the basic types is to check if Convert.GetTypeCode!=TypeCode.Object.
• Watch out for circular reference paths! Check each time before you output an object's properties to make sure that the object isn't already currently being output.
• A property value may be part of a large object graph, and outputting the whole graph as text could bring the app to its knees. Consider limiting the recursion depth.

procInfo.Arguments = tbA.Text + " " + tbB.Text + " " + tbC.Text;

[STAThread]
public static void Main(string [] Args)
{
    if(Args.Length == 3) //In your case true (If there isn't a empty string of course)
    {
    }
 
    for(int x=0;x<=Args.Length;x++)
    {
        //Args[x]
    }
}

Eyungwah wrote:

procInfo.Arguments = tb_params.Text + " " + tb_params1.Text + " " + tb_params2.Text + " ";

tb_params.Text = stringselection1 + System.Enviroment.NewLine + stringselection2;

lb_params.Items.Add(stringselection1);

for(int x=0;x<selectedparams.Length;x++)
{
    lb_params.Items.Add(selectedparams[x]);
}

private Hashtable AllTextBoxes = new Hashtable();

        //constructor code

    AllTextBoxes.Add(0, textBox1);
    AllTextBoxes.Add(1, textBox2);
                //...
                //You could make it more dynamic with a foreach(Control c in this.Controls), than cast c as Textbox. ...
}

        //button click
private void button2_Click(object sender, System.EventArgs e)
{
    OpenFileDialog dlg = new OpenFileDialog();
                dlg.Multiline = true;
    if (dlg.ShowDialog() == DialogResult.OK)
    {
        for(int x=0;x<AllTextBoxes.Count;x++)
        {
            TextBox actTB = AllTextBoxes[x] as TextBox;
            if(x<dlg.FileNames.Length)
            {
                actTB.Text = dlg.FileNames[x]; //add text
            }
            else
            {
                actTB.Text = ""; //clear text
            }
        }
    }
}