Template Columns and Adding a new row.

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WebHierarchicalDataGrid

1106

Terry posted over 14 years ago

I have a bound template column with a checkbox in it. ( Works OK for existing Rows )

<ig:TemplateDataField Key="ControlInPlace" Width="20px"><ItemTemplate>

<asp:CheckBox ID="chkControlInPlace" runat="server" Checked='<%# DataBinder.Eval(((Infragistics.Web.UI.TemplateContainer)Container).DataItem, "ControlInPlace")%>'

/></ItemTemplate><Header Text="InP" /></ig:TemplateDataField>

But when I click in the cell of the Add New Row Row, in that colum, it does not give me the checkbox. In face it does nothinng.

What am I missing ?

19693

[Infragistics] Tsvetelina Georgieva posted over 14 years ago in reply to Terry

Hello soberly,

You should add the onclick client event as an attribute to the CheckBox .

You can do this inside the implementation of InstantiateIn :

https://es.infragistics.com/help/aspnet/webdatagrid-using-item-template

or inside RowInitialize event :

protected void WebDataGrid1_InitializeRow(object sender, Infragistics.Web.UI.GridControls.RowEventArgs e)

    {

        CheckBox chkBox = (CheckBox)e.Row.Items[0].FindControl("CheckBox1");

        chkBox.Attributes.Add("onclick", "return doCommit();");

    }

Inside this JS function you should simulate update and commit the EditingCore behavior:

        function doCommit() {

            var grid = $find('<%= WebDataGrid1.ClientID %>');

// the second cell is not templated one

            var cellValue = grid.get_behaviors().get_activation().get_activeCell().get_row().get_cell(1).get_value();

            grid.get_behaviors().get_activation().get_activeCell().get_row().get_cell(1).set_value(cellValue);

            grid.get_behaviors().get_editingCore().commit();

        }

This should be done because templated field is not bound to data source and the WebDataGrid doesn't "know" that the value of the checkbox has been changed.

And last but not least you need to handle RowUpdating event in order to make the invocation of commit() work.



Please let us know if you need further assistance regarding this.
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1106

Terry posted over 14 years ago in reply to [Infragistics] David Young

OK. If this is the case, then we will default the value to false for new rows. This still leaves us with one problem on this bit.

In the Edit Mode for cells if I hit the return key then it automatically causes the Exiting events to fire. With the Template Column this does not happen. I need to commit the row once the checkbox is clicked. As I cannot add a client side event in the markup, how can I add an onclick attribute to the Template checkbox control during page load. I'm not sure how to get to it through the grid hierarchy.
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[Infragistics] David Young posted over 14 years ago

Hi soberly,

A template data field is not actually bound to the data source, so the add row is not editable for templated fields. You would have to edit the html on the client for the add row to have a checkbox and also have a hidden field on the grid for that field. You then would have to edit the value of the hidden add cell when the checkbox is clicked.

Alternatively, in 11.1, we are coming out with a Bound checkbox field.

regards,

David Young
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