C#

using System;
using System.Drawing;
using System.Windows.Forms;

public partial class FormMain : Form
{
    public Form1()
    {
        // Added two GroupBoxes both containing two Textboxes in designer
        InitializeComponent();
        ControlSettings();
    }
    private void ControlSettings()
    {
        Button buttonHelp = new Button();
        buttonHelp.BackColor = System.Drawing.Color.Transparent;
        buttonHelp.Dock = DockStyle.Right;    // only for testing.
        buttonHelp.Name = "buttonHelp";
        buttonHelp.Size = new System.Drawing.Size(25, 25);
        buttonHelp.UseVisualStyleBackColor = false;

        foreach (Control control in Controls)
        {
            if (control is GroupBox)
            {
                GroupBox groupBox = (GroupBox)control;
                foreach (Control nestedControl in groupBox.Controls)
                {
                    TextBox textBox = nestedControl as TextBox;
                    if (textBox != null)
                    {
                        textBox.Enter += delegate(object sender, EventArgs eventArgs)
                        {
                            ((TextBox)sender).BackColor = Color.Gold;
                            Control parent = ((TextBox)sender).Parent;
                            parent.Controls.Add(buttonHelp);
                        };
                        textBox.Leave += delegate(object sender, EventArgs eventArgs)
                        {
                            Control parent = ((TextBox)sender).Parent;
                            ((TextBox)sender).BackColor = Color.White;
                            parent.Controls.Remove(buttonHelp);
                        };
                    }
                }

            }
        }
    }
}

ControlSettings()

private void Form1_Resize(object sender, System.EventArgs e)
       {
            // some code to handle resizing
           control_Settings();
           this.Invalidate();
       }

buttonHelp.Click += new System.EventHandler(buttonHelp_Click);

textBox.Leave += delegate(object sender, EventArgs eventArgs)
                           {

                               Control pToRemove = ((TextBox)sender).Parent;
                               ((TextBox)sender).BackColor = Color.White;

                               if (!pToRemove.ContainsFocus)
                               {
                                   pToRemove.Controls.Remove(buttonHelp);
                                    buttonHelp.Click -= new System.EventHandler(this.buttonHelp_Click);
                               }
                           };

osama_hagrass wrote:

How FingerPrint Device uses zkemkeeper.dll to get ID

Bastard Programmer from Hell
if you can't read my code, try converting it here[^]

sc steinhayse wrote:

I would want to make certain an exception would not be generated in this situation

sc steinhayse wrote:

Would you show me what code I would need to add?

Bastard Programmer from Hell
if you can't read my code, try converting it here[^]

string[] PkgIDs = rData.details.Where(c => c.batch_id == batchID).Select(c => c.Package_ID).Distinct().ToArray();
if(PkgIDs.Count > 0)//This will check the number of elements in the List
{
                 foreach (string PkgID in PkgIDs)
                 {
                 }

rachel_m wrote:

Can you tell me how to accomplish this goal?

if (myString.Length > 0)
    if (myString.Trim().Length == 0)
        return true; //  String is all spaces