Add Controls Dynamically WinForms WindowsFroms C# VB.NET

1:55:00 am Windows Forms 0 Comments

Add controls dynamically In winforms Or windows froms Using C# And VB.NET

In this post i'm going to explain how to add controls dynamically in winforms and windows forms using C# and VB.NET.


For this i have used northwind database and Employees table to populate combobox and dataGridView.

First of all place two buttons on the form to add combobox and datagridview on button click and write below mentioned code in click event on each button respectively.

C# Code

01private void btnDropDown_Click(object sender, EventArgs e)

02        {

03            int x = 13, y = 70;

04            ComboBox cmbDynamic = new ComboBox();

05            cmbDynamic.Location = new System.Drawing.Point(x, y);

06            cmbDynamic.Name = "cmbDyn";

07            cmbDynamic.DisplayMember = "FirstName";

08            cmbDynamic.ValueMember = "EmployeeID";

09            cmbDynamic.DataSource = employeesBindingSource;

10            Controls.Add(cmbDynamic);

11 

12 

13        }

Here X and Y co-ordinates are used to define at which location the control needs to be placed.

01private void btnDataGrid_Click(object sender, EventArgs e)

02        {

03            int x = 13, y = 100;

04            DataGridView gvDynamic = new DataGridView();

05            gvDynamic.Location = new System.Drawing.Point(x, y);

06            gvDynamic.Name = "gvDyn";

07            gvDynamic.Width = 250;

08            gvDynamic.Height = 260;

09            gvDynamic.DataSource = employeesBindingSource;

10            Controls.Add(gvDynamic);

11        }

VB.NET Code

01Private Sub btnDropDown_Click(sender As Object, e As EventArgs)

02 Dim x As Integer = 13, y As Integer = 70

03 Dim cmbDynamic As New ComboBox()

04 cmbDynamic.Location = New System.Drawing.Point(x, y)

05 cmbDynamic.Name = "cmbDyn"

06 cmbDynamic.DisplayMember = "FirstName"

07 cmbDynamic.ValueMember = "EmployeeID"

08 cmbDynamic.DataSource = employeesBindingSource

09 Controls.Add(cmbDynamic)

10 

11 

12End Sub

01Private Sub btnDataGrid_Click(sender As Object, e As EventArgs)

02 Dim x As Integer = 13, y As Integer = 100

03 Dim gvDynamic As New DataGridView()

04 gvDynamic.Location = New System.Drawing.Point(x, y)

05 gvDynamic.Name = "gvDyn"

06 gvDynamic.Width = 250

07 gvDynamic.Height = 260

08 gvDynamic.DataSource = employeesBindingSource

09 Controls.Add(gvDynamic)

10End Sub

Build and run the code.