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Help with selecting all rows in a DataGrid

Posted on 2013-10-27
Medium Priority
Last Modified: 2013-10-29

My DataGrid contains two columns a checkbox column from code below and a country column. How do I select all the rows including checkboxes from a button click event using VB.NET?

Private Sub CheckControl()
        Dim CheckBoxCol As New DataGridViewCheckBoxColumn
        With CheckBoxCol
            .Name = "CheckBoxColumn"
            .HeaderText = "Select"
            .Width = 40
        End With
        Me.C1TrueDBGrid3.Columns.Insert(0, CheckBoxCol)
    End Sub


Question by:vcharles
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LVL 64

Expert Comment

by:Fernando Soto
ID: 39604617
Hi Victor;

When you say, "How do I select all the rows including checkboxes from a button click event using VB.NET?", do you mean that all the row become a member of the Selected collection of the DataGridView or that all the check boxes have a check placed in them?

Author Comment

ID: 39604802

I would like all the check boxes to  have a check placed in them and change their back color to blue.

LVL 64

Accepted Solution

Fernando Soto earned 2000 total points
ID: 39605891
Hi Victor;

The following code snippet will select all check boxes in the Selected column and mark each line as selected which turns the line blue.

For Each c As DataGridViewRow In C1TrueDBGrid3.Rows
    If c.Cells("Country").Value <> String.Empty Then
        c.Cells("Select").Value = True
        c.Selected = True
    End If

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Author Comment

ID: 39606479
Thank You, will try it and get back to you.
LVL 64

Expert Comment

by:Fernando Soto
ID: 39606496

Author Closing Comment

ID: 39607793
Thank You.
LVL 64

Expert Comment

by:Fernando Soto
ID: 39609401
Not a problem Victor, glad to help.

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