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Event UserAddingRow

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GridView
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Daniel
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Daniel asked on 18 Apr 2018, 03:30 PM
Hi I have problems with the UserAddingRow event, in the child levels of the main if the property e.cancel = True does not let me leave the grid editor, even if I cancel the edition I can not leave the grid row editor, could someone help me thanks beforehand

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Parker
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answered on 10 May 2018, 02:33 PM
I am running into this same problem.  Cancelling the UserAddingRow event doesn't allow me to edit any other grid.  No other control is responsive until the new row is successfully added.
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Dimitar
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answered on 11 May 2018, 09:59 AM
Hi,

This is the default behavior (by design). Instead of canceling the event you can use the CancelAddNewRow method. Here is an example: 
private void RadGridView1_UserAddingRow(object sender, Telerik.WinControls.UI.GridViewRowCancelEventArgs e)
{
    if (e.Rows[0].Cells["Name"].Value == null)
    {
        radGridView1.MasterView.TableAddNewRow.CancelAddNewRow();
    }
}

I hope this will be useful. 
 
Regards,
Dimitar
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Daniel
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answered on 29 May 2018, 07:32 PM
Hello, if it works like this, but there will be some way that I will leave the writing in the row to add I have a help list as the user writes and I pass the focus to this to select from the list
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Daniel
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answered on 29 May 2018, 09:35 PM
The problem with this is that if I want to edit another cell but I do not want to add the row until the whole row is validated, it eliminates what I already put in the first cell, the 2015 version did not have this problem and I already changed to the 2017 all
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Dimitar
Telerik team
answered on 30 May 2018, 07:24 AM
Hi Daniel,

In order to leave the new row without adding it or without losing the values you will need to create a custom GridViewNewRowInfo and override the following methods:
class MyNewRow : GridViewNewRowInfo
{
    public MyNewRow(GridViewInfo info) : base (info)
    {
 
    }
    protected override bool OnBeginEdit()
    {
        return true;//base.OnBeginEdit();
    }
    protected override bool OnEndEdit()
    {
        return true; // base.OnEndEdit();
    }
    protected override void OnPropertyChanged(PropertyChangedEventArgs e)
    {
        if (e.PropertyName == "IsCurrent" && !IsCurrent)
        {
            return;
        }
        base.OnPropertyChanged(e);
    }
}

Change the default row in the CreateRowInfo event handler (subscribe at design time):
private void radGridView1_CreateRowInfo(object sender, GridViewCreateRowInfoEventArgs e)
{
    if (e.RowInfo is GridViewNewRowInfo)
    {
        e.RowInfo = new MyNewRow(e.ViewInfo);
    }
}

Please note that with this approach you will need to manually add the row at some point (call the EndAddNewRow method).

I hope this will be useful. 
 
Regards,
Dimitar
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Daniel
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answered on 30 May 2018, 07:35 AM
Hello, thank you so much for taking the time to appreciate it.
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Dimitar
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Daniel
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