[Solved] How to Reference Checkbox

[JustinWong]

Hi:

Let's say I have a RadGridView called RGV. There is a CheckboxColumn (uniquename = "col1").  How can I reference the check box in row 6 of that column and change the check box value under two secnario:

1. I click a button somewhere in the form, and I need to change the checkbox on row 6 to true.
2. During the RGV.CellFormatting event, I need to set the checkbox of each row to true or false based on some predetermined factor.

If I could see some VB code example on how to acheive that, I'd be grateful.

Thanks,

Justin

[Mathieu Yargeau]

Hello,

I don't program in VB, but in C#. However, it should not be that different.

For your first question, you can do this:

radGridView1.Rows[6].Cells["col1"].Value = true;

For your second question:

void radGridView1_CellFormatting(object sender, CellFormattingEventArgs e)
{
    if (radGridView1.Columns[e.CellElement.ColumnIndex].UniqueName == "col1")
    {
        GridViewCellInfo cell = e.CellElement.RowInfo.Cells[e.CellElement.ColumnIndex];

        if (Condition == true)
        {
            cell.Value = true;
        }
        else
        {
            cell.Value = false;
        }
    }
}

 

Here I check if the cell being formatted is in the CheckBoxColumn, recuperates the grid's cell and set the right value.

[Jack]

Hello Justin, Mathieu Yargeau,

Thank you for your help. A better option is to use the UniqueName property instead of the ColumnIndex, which is calculated dynamically every time. Here is the code in VB:

Private Sub RadGridView1_CellFormatting(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellFormattingEventArgs) Handles RadGridView1.CellFormatting
    Dim column As GridViewDataColumn = TryCast(e.CellElement.ColumnInfo, GridViewDataColumn)
    Dim cell As GridDataCellElement = TryCast(e.CellElement, GridDataCellElement)
    If column IsNot Nothing And column.UniqueName = "col1" Then
        cell.Value = Condition
    End If
End Sub

I hope this helps.

 

Kind regards,
Jack
the Telerik team

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