DataGridView Checkbox Column Header Cell?

Sep 13, 2011

I'm trying to render a checkbox in a datagridview column header so that when the checkbox is hecked/unchecked all the cells in that column should be checked/unchecked accordingly. The datagridview is bound to a database table but the column containing the checkbox header cell is unbound.
The problem is, whenever i click the header checkbox, all the cells in that column are checked but the header checkbox itself gets invisible.If I click the HEADER (though the checkbox is invisible, still I can click the header) again, all the cells in the column below are unchecked and the header checkbox becomes visible and unchecked. Everything is happening as expected except the visibility of the header checkbox. Why is it so?

[Code]...

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DataGridView Checkbox Column Header Cell (.Net 4.0)?

Sep 13, 2011

I'm trying to render a checkbox in a datagridview column header so that when the checkbox is checked/unchecked all the cells in that column should be checked/unchecked accordingly.The datagridview is bound to a database table but the column containing the checkbox header cell is unbound. The problem is, whenever i click the header checkbox, all the cells in that column are checked but the header checkbox itself gets invisible. If I click the HEADER (though the checkbox is invisible, still I can click the header) again, all the cells in the column below are unchecked and the header checkbox becomes visible and unchecked. Everything is happening as expected except the visibility of the header checkbox. Why is it so?

''' <summary>
''' The custom class for checkbox header cell.
''' </summary>

[code].....

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highlight rows with RBF3
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[code].....

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Private
Sub
DataGridView1_CellClick(ByVal
sender As

[code]....

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May 15, 2011

I have some DataGridView code written in vb.net. (Nothing is attached to a datasource.)The 4th column is a checkbox cell.How do I detect if that checkBox is checked or unchecked?This code strangely reports TRUE or FALSE at random times. It even turns ON the checkbox in rows other than the row I clicked in. (Huh?)

Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick
Dim whichGrid As DataGridView = CType(sender, DataGridView)

[code].....

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Feb 13, 2012

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Private Sub DataGridView1_ColumnHeaderMouseClick(sender As Object, e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles DataGridView1.ColumnHeaderMouseClick
Try

[code]....

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'....
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[Code]....

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Here is the code:

[Code]...

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Private Sub DataGridView2_CellValueChanged(sender As Object, e As DataGridViewCellEventArgs) Handles DataGridView2.CellValueChanged
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[Code]....

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[Code]...

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[Code] .....
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