i'm want to have a repeater generate a bunch of checkboxes, e.g.:
<tr><td><input type="checkbox" name="t" value="11cbf4deb87" /> <input type="checkbox" name="a" value="33cbf4deb87" />stackoverflow.com</td></tr>
<tr><td><input type="checkbox" name="t" value="11cbf4deb88" /> <input type="checkbox" name="a" value="33cbf4deb87" />microsoft.com</td></tr>
<tr><td><input type="checkbox" name="t" value="11cd3f33a89" /> <input type="checkbox" name="a" value="33cbf4deb87" />gmail.com</td></tr>
<tr><td><input type="checkbox" name="t" value="1138fecd337" /> <input type="checkbox" name="a" value="33cbf4deb87" />youporn.com</td></tr>
<tr><td><input type="checkbox" name="t" value="11009efdacc" /> <input type="checkbox" name="a" value="33bf4deb87" />fantasti.cc</td></tr>
Question 1: How do i individually reference each checkbox when the repeater is running so i can set the unique value?
Do i data-bind it with something like:
<itemtemplate>
<tr>
<td>
<input type="checkbox" name="t"
value="<%# ((Item)Container.DataItem).TangoUniquifier %>" />
<input type="checkbox" name="a"
value="<%# ((Item)Container.DataItem).AlphaUniquifier %>" />
<%# ((Item)Container.DataItem).SiteName %>
</td>
</tr>
</itemtemplate>
Or am i supposed to set it somehow in the OnItemDataBound?
<asp:repeater id="ItemsRepeater"
OnItemDataBound="ItemsRepeater_OnItemDataBound" runat="server">
...
<itemtemplate>
<tr>
<td>
<input id="chkTango" type="checkbox" name="t" runat="server" />
<input id="chkAlpha" type="checkbox" name="a" runat="server" />
<%# ((Item)Container.DataItem).SiteName %>
</td>
</tr>
</itemtemplate>
...
</asp:repeater>
protected void ItemsRepeater_OnItemDataBound(object sender, RepeaterItemEventArgs e)
{
// if the data bound item is an item or alternating item (not the header etc)
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
// get the associated item
Item item = (Item)e.Item.DataItem;
//???
this.chkTango.Value = item.TangoUniquifier;
this.chkAlpha.Value = item.AlphaUniquifier;
}
}
But if i'm supposed to reference it in the code-behind, how do i reference it in the code-behind? Am i supposed to reference it using the (server-side) id property of an <INPUT>
control? i realize that the ID of a control on the server-side is not the same as the ID that will be present on the client.
Or do i have to do something where i have to find an INPUT control with a name of "t" and another with a name of "a"? And what kind of control is a CheckBox that allows me to set it's input value?
protected void ItemsRepeater_OnItemDataBound(object sender, RepeaterItemEventArgs e)
{
// if the data bound item is an item or alternating item (not the header etc)
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
// get the associated item
Item item = (Item)e.Item.DataItem;
CheckBox chkTango = (CheckBox)e.Item.FindControl("chkTango");
chkTango.Value = item.TangoUniquifier;
CheckBox chkAlpha = (CheckBox)e.Item.FindControl("chkAlpha");
chkAlpha.Value = item.AlphaUniquifier;
}
}
Question 2: When the user later clicks SUBMIT, how do i find all the checked checkboxes, or more specifically their VALUES?
Do i have to FindControl?
protected void DoStuffWithLinks_Click(object sender, EventArgs e)
{
// loop through the repeater items
foreach (RepeaterItem repeaterItem in actionItemRepeater.Items)
{
Item item = repeaterItem.DataItem as Item;
// grab the checkboxes
CheckBox chkAlpha = (CheckBox)repeaterItem.FindControl("chkAlpha");
CheckBox chkTango = (CheckBox)repeaterItem.FindControl("chkTango");
if (chkAlpha.Checked)
{
item.DoAlphaStuff(chkAlpha.Name);
}
if (chkTango.Checked)
{
item.DoTangoStuff(chkTango.Name);
}
}
}
Is the repeater items DataItem still there on a click event handler?