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Synchronized Textbox by Cell-Click

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GridView
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juergen
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juergen asked on 31 Aug 2010, 12:51 PM
Hi,
I am searching a possibility to synchronize an external Texbox (in a 2-way manner, entries in the Textbox should appear in a selected cell and vice-versa) with a gridcell selected by an user.

Thank you,
Juergen.

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Veselin Vasilev
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answered on 31 Aug 2010, 12:54 PM
Hi Jürgen Schweiss,

We have an online example which demonstrates exactly this. Please check it here:
Data Source change notifications

Sincerely yours,
Veselin Vasilev
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juergen
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answered on 01 Sep 2010, 11:35 AM
Hello Veselin,

in that example, having known columns (AutoGenerateColumns = "false") and their bindings. In my special case i'm using  (AutoGenerateColumns = "true"). Therefore the textbox can't be bound to a single (known) column.
The textbox should be used as additional "editable" area for each user selected cellcontent in editmode.

regards,
Juergen
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Vlad
Telerik team
answered on 02 Sep 2010, 08:43 AM
Hi,

You can access auto-generated  columns (and their bindings) in AutoGeneratingColumn event.

Sincerely yours,
Vlad
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juergen
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answered on 02 Sep 2010, 09:38 AM
Hi,

my problem consists of having implemented an automatic FullRow/Cell switching, as suggested here in another forum post.
http://www.telerik.com/community/forums/wpf/gridview/excel-like-cell-row-and-column-selection.aspx

There is a possible caveat though - when you switch to row selection all selected cells will be cleared and I am not sure if this behavior is desired. Similarly, all selected items will be cleared when you switch from row selection to cell selection.

In your documentation i found following:  

SelectedItem

To access the data item of the selected row use the SelectedItem property. It changes its value every time when the row selection changes and exposes the object to which the row is bound. You can use it when the SelectionUnit is set to FullRow (default), otherwise it is null.

CurrentItem

The CurrentItem property holds the data item of the row which currently holds the focus. It may or may not coincide with the selected row. However, in most of the cases these two rows are one and the same.

//GridViewCellInfo and stores two pieces of data – the Item and the Column that a particular cell is associated with
        var ci = this.grdView.CurrentCellInfo;
        string colname = ci.Column.UniqueName;
  
        if (di != null)
        {
            Binding myBinding = new Binding()
            {
                Source = di,
                Path = new PropertyPath(colname),
                Mode = BindingMode.TwoWay
            };
  
            this.txtCellContent.SetBinding(TextBox.TextProperty, myBinding);
        }

"di" is my dataItem (which consists of 4 cols) of the current row. "colname" could not be achieved,
because CurrentCellInfo is beeing null.
How to achieve the actual ColumnName in the suitable event?
regards,
Juergen

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juergen
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answered on 02 Sep 2010, 02:04 PM
Hi,

using CurrentCellChanged-Event with CellInfo.Item solved this.

Thanks,
Jürgen
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Veselin Vasilev
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juergen
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Vlad
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