Login

Hi Angel,

        I have attached a simple sample for this login logic for Windows Forms you have asked by using the following code snippet,

Here you can select the user name from a combobox and the password is "tamil_valarga".

Form 1:

namespace Login
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (this.textBox2.Text == "tamil_valarga")
            {
                if (this.comboBox1.Text == "User 1")
                {
                    new User_1().Show();
                }
                else if (this.comboBox1.Text == "User 2")
                {
                    new User_2().Show();
                }
                else if (this.comboBox1.Text == "Admin")
                {
                    new Admin().Show();
                }
                else
                {
                    MessageBox.Show("User Name is wrong or not have permission to access this application");
                }
            }
            else
            {
                MessageBox.Show("Password you have entered is wrong");
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}


 private void InitializeComponent()
        {
            this.textBox2 = new System.Windows.Forms.TextBox();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.comboBox1 = new System.Windows.Forms.ComboBox();
            this.SuspendLayout();
            //
            // textBox2
            //
            this.textBox2.Location = new System.Drawing.Point(113, 83);
            this.textBox2.Name = "textBox2";
            this.textBox2.PasswordChar = '*';
            this.textBox2.Size = new System.Drawing.Size(155, 20);
            this.textBox2.TabIndex = 1;
            //
            // label1
            //
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(33, 38);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(60, 13);
            this.label1.TabIndex = 2;
            this.label1.Text = "User Name";
            //
            // label2
            //
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(33, 83);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(59, 13);
            this.label2.TabIndex = 3;
            this.label2.Text = "Pass Word";
            //
            // button1
            //
            this.button1.Location = new System.Drawing.Point(63, 129);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(70, 26);
            this.button1.TabIndex = 4;
            this.button1.Text = "Enter";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            //
            // button2
            //
            this.button2.Location = new System.Drawing.Point(156, 129);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(79, 26);
            this.button2.TabIndex = 5;
            this.button2.Text = "Exit";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            //
            // comboBox1
            //
            this.comboBox1.FormattingEnabled = true;
            this.comboBox1.Items.AddRange(new object[] {
            "User 1",
            "User 2",
            "Administrator"});
            this.comboBox1.Location = new System.Drawing.Point(112, 38);
            this.comboBox1.Name = "comboBox1";
            this.comboBox1.Size = new System.Drawing.Size(155, 21);
            this.comboBox1.TabIndex = 6;
            //
            // Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(303, 181);
            this.Controls.Add(this.comboBox1);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.textBox2);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }


Regards,

Selva Ganapathy K