VB.NET DataGridView Tutorials

Adding checkbox column to DataGridView

  Dim AddColumn As New DataGridViewCheckBoxColumn

  With AddColumn
    .HeaderText = "ColumnName"
    .Name = "Column Name that will be displayed"
    .Width = 80
  End With

  dgAdmin.Columns.Insert(1, AddColumn)

datagridview column header checkbox

Public Class search

Private col As DataGridViewCheckBoxColumn

Private chkBox As CheckBox

Private Sub search_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

col = New DataGridViewCheckBoxColumn()

col.Name = "select"

col.HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter

dgcourse.Columns.Insert(0, col)

chkBox = New CheckBox()

Dim rect As Rectangle = dgcourse.GetCellDisplayRectangle(0, -1, True)

chkBox.Size = New Size(18, 18)

chkBox.Location = rect.Location

AddHandler chkBox.CheckedChanged, AddressOf chkBox_CheckedChanged

dgcourse.Controls.Add(chkBox)

End Sub

Private Sub chkBox_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)

'checkbox value change 

For i As Integer = 0 To dgcourse.Rows.Count - 1

dgcourse(0, i).Value = chkBox.Checked

Next

End Sub

End Class

DataGridView - how to hide the “new” row?

Click on datagridview and change properties AllowUserToAddRows set as false.

Programmatically,

myGrid.AllowUserToAddRows = False

Read the checked rows in a datagridview

For i = 0 To dgcourse.Rows.Count - 1

   If dgcourse.Rows(i).Cells("select").Value Then

      'dgcourse.Item(1, i).Value 

    End If

Next i

Delete row in datagridview

DataGridView1.Rows.Remove(DataGridView1.Rows(x))

Make one column set as editable

Datagridview Readonly Property set as True - all columns are not editable.

dataGridView1.Columns("ColumnName").ReadOnly = false;

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