Enable Disable Buttons in Windows Forms DataGridView ButtonColumn using C# and VB.Net

Hi PSowmiya,

The DataGridView control includes the DataGridViewButtonCell class for displaying cells with a user interface like a button.

However DataGridViewButtonCell does not provide a way to disable the appearance of the button displayed by the cell. 

So you need to customize the DataGridViewButtonCell class to display buttons that can appear disabled.

Refer following code example, how to customize the the DataGridViewButtonCell class.

Namespaces

C#

using System.Data;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;

VB.Net

Imports System.Data
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Windows.Forms.VisualStyles

Code

C#

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

    private void Form1_Load(object sender, EventArgs e)
    {
        DataTable dt = new DataTable();
        dt.Columns.AddRange(new DataColumn[3] { new DataColumn("Id", typeof(int)),
                        new DataColumn("Name", typeof(string)),
                        new DataColumn("Country",typeof(string)) });
        dt.Rows.Add(1, "John Hammond", "United States");
        dt.Rows.Add(2, "Mudassar Khan", "India");
        dt.Rows.Add(3, "Suzanne Mathews", "France");
        dt.Rows.Add(4, "Robert Schidner", "Russia");

        dataGridView1.AutoGenerateColumns = false;
        dataGridView1.ColumnCount = 3;
        dataGridView1.AutoSize = false;
        dataGridView1.ScrollBars = ScrollBars.Both;
        dataGridView1.AllowUserToAddRows = false;

        dataGridView1.Columns[0].Name = "Id";
        dataGridView1.Columns[0].HeaderText = "Id";
        dataGridView1.Columns[0].DataPropertyName = "Id";
        dataGridView1.Columns[0].ReadOnly = true;
        dataGridView1.Columns[0].Width = 30;

        dataGridView1.Columns[1].Name = "Name";
        dataGridView1.Columns[1].HeaderText = "Name";
        dataGridView1.Columns[1].DataPropertyName = "Name";
        dataGridView1.Columns[1].ReadOnly = true;

        dataGridView1.Columns[2].Name = "Country";
        dataGridView1.Columns[2].HeaderText = "Country";
        dataGridView1.Columns[2].DataPropertyName = "Country";
        dataGridView1.Columns[2].ReadOnly = true;
        dataGridView1.Columns[2].Width = 80;

        DataGridViewComboBoxColumn returnstatus = new DataGridViewComboBoxColumn();
        returnstatus.Name = "Status";
        returnstatus.Width = 70;
        returnstatus.Items.Add("Yes");
        returnstatus.Items.Add("No");
        dataGridView1.Columns.Insert(3, returnstatus);

        DataGridViewDisableButtonColumn addRow = new DataGridViewDisableButtonColumn();
        addRow.Width = 50;
        addRow.Name = "AddButton";
        addRow.HeaderText = "Add";
        dataGridView1.Columns.Insert(4, addRow);

        DataGridViewDisableButtonColumn deleteRow = new DataGridViewDisableButtonColumn();
        deleteRow.Width = 60;
        deleteRow.Name = "DeleteButton";
        deleteRow.HeaderText = "Delete";
        dataGridView1.Columns.Insert(5, deleteRow);

        dataGridView1.DataSource = dt;
        for (int i = 0; i < dataGridView1.RowCount; i++)
        {
            dataGridView1.Rows[i].Cells["AddButton"].Value = "Add";
            dataGridView1.Rows[i].Cells["DeleteButton"].Value = "Delete";
        }
    }

    private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)
    {
        if (e.ColumnIndex == 3)
        {
            DataGridViewDisableButtonCell buttonAdd = (DataGridViewDisableButtonCell)dataGridView1.Rows[e.RowIndex].Cells["AddButton"];
            DataGridViewDisableButtonCell buttonDelete = (DataGridViewDisableButtonCell)dataGridView1.Rows[e.RowIndex].Cells["DeleteButton"];
            if (dataGridView1.Rows[e.RowIndex].Cells[3].Value.ToString().ToLower() == "yes")
            {
                buttonAdd.Enabled = false;
                buttonDelete.Enabled = false;
            }
            else
            {
                buttonAdd.Enabled = true;
                buttonDelete.Enabled = true;
            }
            dataGridView1.Invalidate();
        }
    }

    private void dataGridView1_CurrentCellDirtyStateChanged(object sender, EventArgs e)
    {
        if (dataGridView1.IsCurrentCellDirty)
        {
            dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
        }
    }

    private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
    {
        if (dataGridView1.Columns[e.ColumnIndex].Name == "AddButton")
        {
            DataGridViewDisableButtonCell buttonCell = (DataGridViewDisableButtonCell)dataGridView1.Rows[e.RowIndex].Cells["AddButton"];
            if (buttonCell.Enabled)
            {
                MessageBox.Show("Record Added.");
            }
        }

        if (dataGridView1.Columns[e.ColumnIndex].Name == "DeleteButton")
        {
            DataGridViewDisableButtonCell buttonCell = (DataGridViewDisableButtonCell)dataGridView1.Rows[e.RowIndex].Cells["DeleteButton"];
            if (buttonCell.Enabled)
            {
                MessageBox.Show("Record Deleted.");
            }
        }
    }
}

public class DataGridViewDisableButtonColumn : DataGridViewButtonColumn
{
    public DataGridViewDisableButtonColumn()
    {
        this.CellTemplate = new DataGridViewDisableButtonCell();
    }
}

public class DataGridViewDisableButtonCell : DataGridViewButtonCell
{
    private bool enabledValue;
    public bool Enabled
    {
        get
        {
            return enabledValue;
        }
        set
        {
            enabledValue = value;
        }
    }

    public override object Clone()
    {
        DataGridViewDisableButtonCell cell = (DataGridViewDisableButtonCell)base.Clone();
        cell.Enabled = this.Enabled;
        return cell;
    }

    public DataGridViewDisableButtonCell()
    {
        this.enabledValue = true;
    }

    protected override void Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates elementState,
                                    object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle,
                                    DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
    {
        if (!this.enabledValue)
        {
            if ((paintParts & DataGridViewPaintParts.Background) == DataGridViewPaintParts.Background)
            {
                SolidBrush cellBackground = new SolidBrush(cellStyle.BackColor);
                graphics.FillRectangle(cellBackground, cellBounds);
                cellBackground.Dispose();
            }

            if ((paintParts & DataGridViewPaintParts.Border) == DataGridViewPaintParts.Border)
            {
                PaintBorder(graphics, clipBounds, cellBounds, cellStyle, advancedBorderStyle);
            }

            Rectangle buttonArea = cellBounds;
            Rectangle buttonAdjustment = this.BorderWidths(advancedBorderStyle);
            buttonArea.X += buttonAdjustment.X;
            buttonArea.Y += buttonAdjustment.Y;
            buttonArea.Height -= buttonAdjustment.Height;
            buttonArea.Width -= buttonAdjustment.Width;

            ButtonRenderer.DrawButton(graphics, buttonArea, PushButtonState.Disabled);

            if (this.FormattedValue is String)
            {
                TextRenderer.DrawText(graphics, (string)this.FormattedValue, this.DataGridView.Font, buttonArea, SystemColors.GrayText);
            }
        }
        else
        {
            base.Paint(graphics, clipBounds, cellBounds, rowIndex, elementState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts);
        }
    }
}

VB.Net

Public Class Form1
    Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
        Dim dt As DataTable = New DataTable()
        dt.Columns.AddRange(New DataColumn(2) {
                            New DataColumn("Id", GetType(Integer)),
                            New DataColumn("Name", GetType(String)),
                            New DataColumn("Country", GetType(String))})
        dt.Rows.Add(1, "John Hammond", "United States")
        dt.Rows.Add(2, "Mudassar Khan", "India")
        dt.Rows.Add(3, "Suzanne Mathews", "France")
        dt.Rows.Add(4, "Robert Schidner", "Russia")
        dataGridView1.AutoGenerateColumns = False
        dataGridView1.ColumnCount = 3
        dataGridView1.AutoSize = False
        dataGridView1.ScrollBars = ScrollBars.Both
        dataGridView1.AllowUserToAddRows = False

        dataGridView1.Columns(0).Name = "Id"
        dataGridView1.Columns(0).HeaderText = "Id"
        dataGridView1.Columns(0).DataPropertyName = "Id"
        dataGridView1.Columns(0).ReadOnly = True
        dataGridView1.Columns(0).Width = 30

        dataGridView1.Columns(1).Name = "Name"
        dataGridView1.Columns(1).HeaderText = "Name"
        dataGridView1.Columns(1).DataPropertyName = "Name"
        dataGridView1.Columns(1).ReadOnly = True

        dataGridView1.Columns(2).Name = "Country"
        dataGridView1.Columns(2).HeaderText = "Country"
        dataGridView1.Columns(2).DataPropertyName = "Country"
        dataGridView1.Columns(2).ReadOnly = True
        dataGridView1.Columns(2).Width = 80

        Dim returnstatus As DataGridViewComboBoxColumn = New DataGridViewComboBoxColumn()
        returnstatus.Name = "Status"
        returnstatus.Width = 70
        returnstatus.Items.Add("Yes")
        returnstatus.Items.Add("No")
        dataGridView1.Columns.Insert(3, returnstatus)

        Dim addRow As DataGridViewDisableButtonColumn = New DataGridViewDisableButtonColumn()
        addRow.Width = 50
        addRow.Name = "AddButton"
        addRow.HeaderText = "Add"
        dataGridView1.Columns.Insert(4, addRow)

        Dim deleteRow As DataGridViewDisableButtonColumn = New DataGridViewDisableButtonColumn()
        deleteRow.Width = 60
        deleteRow.Name = "DeleteButton"
        deleteRow.HeaderText = "Delete"
        dataGridView1.Columns.Insert(5, deleteRow)

        dataGridView1.DataSource = dt
        For i As Integer = 0 To dataGridView1.RowCount - 1
            dataGridView1.Rows(i).Cells("AddButton").Value = "Add"
            dataGridView1.Rows(i).Cells("DeleteButton").Value = "Delete"
        Next
    End Sub

    Private Sub dataGridView1_CellValueChanged(ByVal sender As Object, ByVal e As DataGridViewCellEventArgs) Handles dataGridView1.CellValueChanged
        If e.ColumnIndex = 3 Then
            Dim buttonAdd As DataGridViewDisableButtonCell = CType(dataGridView1.Rows(e.RowIndex).Cells("AddButton"), DataGridViewDisableButtonCell)
            Dim buttonDelete As DataGridViewDisableButtonCell = CType(dataGridView1.Rows(e.RowIndex).Cells("DeleteButton"), DataGridViewDisableButtonCell)
            If dataGridView1.Rows(e.RowIndex).Cells(3).Value.ToString().ToLower() = "yes" Then
                buttonAdd.Enabled = False
                buttonDelete.Enabled = False
            Else
                buttonAdd.Enabled = True
                buttonDelete.Enabled = True
            End If

            dataGridView1.Invalidate()
        End If
    End Sub

    Private Sub dataGridView1_CurrentCellDirtyStateChanged(ByVal sender As Object, ByVal e As EventArgs) Handles dataGridView1.CurrentCellDirtyStateChanged
        If dataGridView1.IsCurrentCellDirty Then
            dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit)
        End If
    End Sub

    Private Sub dataGridView1_CellClick(ByVal sender As Object, ByVal e As DataGridViewCellEventArgs) Handles dataGridView1.CellClick
        If dataGridView1.Columns(e.ColumnIndex).Name = "AddButton" Then
            Dim buttonCell As DataGridViewDisableButtonCell = CType(dataGridView1.Rows(e.RowIndex).Cells("AddButton"), DataGridViewDisableButtonCell)
            If buttonCell.Enabled Then
                MessageBox.Show("Record Added.")
            End If
        End If

        If dataGridView1.Columns(e.ColumnIndex).Name = "DeleteButton" Then
            Dim buttonCell As DataGridViewDisableButtonCell = CType(dataGridView1.Rows(e.RowIndex).Cells("DeleteButton"), DataGridViewDisableButtonCell)
            If buttonCell.Enabled Then
                MessageBox.Show("Record Deleted.")
            End If
        End If
    End Sub

    Public Class DataGridViewDisableButtonColumn
        Inherits DataGridViewButtonColumn

        Public Sub New()
            Me.CellTemplate = New DataGridViewDisableButtonCell()
        End Sub
    End Class

    Public Class DataGridViewDisableButtonCell
        Inherits DataGridViewButtonCell

        Private Property enabledValue As Boolean
        Public Property Enabled As Boolean
            Get
                Return enabledValue
            End Get
            Set(ByVal value As Boolean)
                enabledValue = value
            End Set
        End Property

        Public Overrides Function Clone() As Object
            Dim cell As DataGridViewDisableButtonCell = CType(MyBase.Clone(), DataGridViewDisableButtonCell)
            cell.Enabled = Me.Enabled
            Return cell
        End Function

        Public Sub New()
            Me.enabledValue = True
        End Sub

        Protected Overrides Sub Paint(ByVal graphics As Graphics, ByVal clipBounds As Rectangle, ByVal cellBounds As Rectangle, ByVal rowIndex As Integer,
                                      ByVal elementState As DataGridViewElementStates, ByVal value As Object, ByVal formattedValue As Object,
                                      ByVal errorText As String, ByVal cellStyle As DataGridViewCellStyle,
                                      ByVal advancedBorderStyle As DataGridViewAdvancedBorderStyle, ByVal paintParts As DataGridViewPaintParts)
            If Not Me.enabledValue Then

                If (paintParts And DataGridViewPaintParts.Background) = DataGridViewPaintParts.Background Then
                    Dim cellBackground As SolidBrush = New SolidBrush(cellStyle.BackColor)
                    graphics.FillRectangle(cellBackground, cellBounds)
                    cellBackground.Dispose()
                End If

                If (paintParts And DataGridViewPaintParts.Border) = DataGridViewPaintParts.Border Then
                    PaintBorder(graphics, clipBounds, cellBounds, cellStyle, advancedBorderStyle)
                End If

                Dim buttonArea As Rectangle = cellBounds
                Dim buttonAdjustment As Rectangle = Me.BorderWidths(advancedBorderStyle)
                buttonArea.X += buttonAdjustment.X
                buttonArea.Y += buttonAdjustment.Y
                buttonArea.Height -= buttonAdjustment.Height
                buttonArea.Width -= buttonAdjustment.Width
                ButtonRenderer.DrawButton(graphics, buttonArea, PushButtonState.Disabled)
                If TypeOf Me.FormattedValue Is String Then
                    TextRenderer.DrawText(graphics, CStr(Me.FormattedValue), Me.DataGridView.Font, buttonArea, SystemColors.GrayText)
                End If
            Else
                MyBase.Paint(graphics, clipBounds, cellBounds, rowIndex, elementState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts)
            End If
        End Sub
    End Class
End Class

Screenshot

For more details refer below link.

Disable Buttons in a Button Column