How to fire server event when clicking checkbox

[Al]

Hi,

I have listview that works well with the definition below:

<telerik:RadListView ID="lvwUserGroups" runat="server" ItemPlaceholderID="groupsPlaceholder" OnNeedDataSource="lvwUserGroups_NeedDataSource"
    DataKeyNames="GroupID" >
    <LayoutTemplate>
        <div class="RadListView RadListView_<%# Master.SkinManager.Skin %>" >
            <table class="mainTable">
                <thead>
                    <tr class="rlvHeader">
                        <th class="thcenter">Enabled</th>
                        <th>Group</th>
                    </tr>
                </thead>
                <tbody>
                    <asp:PlaceHolder id="groupsPlaceholder" runat="server">
                    </asp:PlaceHolder>
                </tbody>
            </table>
        </div>
    </LayoutTemplate>
</telerik:RadListView>

 

protected class userGRPTemplate : ITemplate
{
    private ADScrubWeb.HTMLHelper helper = new ADScrubWeb.HTMLHelper();

    public userGRPTemplate()
    {
    }

    public void InstantiateIn(Control container)
    {
        TableRow tr = new TableRow();
        container.Controls.Add(tr);

        helper.AddControlToParent(container, helper.AddBoundHiddenField("GroupID"));

        helper.AddControlToParent(tr, helper.AddBoundCheckBox("Enabled"), true, HorizontalAlign.Center);
        helper.AddControlToParent(tr, helper.AddBoundTextBox("GroupName", BorderStyle.None, true), true, HorizontalAlign.Left);
    }
}

 

public CheckBox AddBoundCheckBox(string controlID)
{
    CheckBox tmp = new CheckBox();
    tmp.ID = controlID;
    tmp.DataBinding += delegate(object sender, EventArgs args)
    {
        CheckBox control = ((CheckBox)sender);
        RadListViewDataItem listViewDataItem = ((RadListViewDataItem)control.NamingContainer);
        control.Checked = lsuGeneral.IsTrue(DataBinder.Eval(listViewDataItem.DataItem, controlID).ToString());
    };
    return tmp;
}

 

I would like to react to the user clicking the bound checkbox so I can do auto-updates without the user clicking an update button. I tried wiring up the checkbox CheckedChange event in the ITemplate but that didn't fire, anyway I would still need to know which row's checkbox was clicked.

Any ideas?

 

 

 

[Maria Ilieva]

Hello,

Please try setting the AutoPostback property of the CheckBox control to "true" and see how it goes.


Regards,
Maria Ilieva
Telerik

[Al]

Thanks Maria, I missed that. For anyone else interested, I used something like this in my listview template:

 

    public void InstantiateIn(Control container)
    {
        CheckBox chkIsKey = helper.AddBoundCheckBox("IsKey");
        chkIsKey.AutoPostBack = true;
        chkIsKey.CheckedChanged += chkIsKey_CheckedChanged;

        helper.AddControlToParent(chkIsKey);

    }

    void chkIsKey_CheckedChanged(object sender, EventArgs e)
    {
        CheckBox chk = ((CheckBox)sender);
        if (chk.Checked)
        {
            RadListViewDataItem listViewDataItem = ((RadListViewDataItem)chk.NamingContainer);

            //Do something with other controls on this row
            CheckBox someOtherCheckbox = ((CheckBox)listViewDataItem.FindControl("someOtherCheckbox"));
            someOtherCheckbox.Checked = true;


            //Do something with other controls in this list
            RadListView listView = listViewDataItem.OwnerListView;
            foreach (RadListViewDataItem dataItem in listView.Items)
            {
                CheckBox xx = ((CheckBox)dataItem.FindControl("xx"));
                xx.Checked = false;
            }
        }
    }
}

[Maria Ilieva]

Hi Al,

Thank you for sharing your solution. I'm sure it will help other users to implement such functionality.

Regards,
Maria Ilieva
Telerik