I have a web page that uses single user control and a asp:repeater that uses the same user control and both are created in Page_Load. Both bahave differently in a submit button clicking event. The binding event for each of the repeater (depdentBasicInfo)'s user control is called after submit button clicking before page_load. But the binding event is not for the single user control (spouseBasicInfo). Why? Also the user control create a runtime control (assuming a TextBox). I found there is no way to retrieve the runtime control's Text property after clicking the submit as the control becomes null after PostBack. How to retrieve the property easily? Could any one help me? Thanks.
<!--USER CONTROL -->
<asp:Panel runat="server" ID="PnlSpouseInformation" Visible="true">
<h3 id="ApplicantLabel" runat="server"></h3>
<div class="dependentInformation">
<asp:PlaceHolder ID="phDependentInformation" runat="server"></asp:PlaceHolder>
</div>
</asp:Panel>
<!-- code behind -->
public partial class userInfo : System.Web.UI.UserControl
{
public string identity;
public string applicantTitle
{
set { ApplicantLabel.InnerText = value; }
}
protected void Page_Load(object sender, EventArgs e)
{
}
public void Bind()
{
WebControl textBox = new TextBox
{
Text = identity,
ID = "textbox"
};
phDependentInformation.Controls.Add(textBox);
}
}
<html>
<head runat="server">
<title>Test user control binding</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<uc1:userInfo runat="server" ID="SpouseBasicInfo" Visible="false" />
<asp:Repeater runat="server" ID="RptDependents" OnItemCreated="RptDependents_ItemCreated">
<ItemTemplate>
<uc1:userInfo runat="server" ID="DependentBasicInfo" />
</ItemTemplate>
</asp:Repeater>
<asp:LinkButton runat="server" ID="submit" OnClick="OnClickSubmit"><span>Submit</span></asp:LinkButton>
</div>
</form>
</body>
public partial class _default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
SpouseBasicInfo.identity = "spouse";
SpouseBasicInfo.Bind();
SpouseBasicInfo.Visible = true;
List<String> list = new List<string>();
list.Add("Dependent A");
list.Add("Dependent B");
RptDependents.DataSource = list;
RptDependents.DataBind();
}
}
protected void OnClickSubmit(object sender, EventArgs e)
{
if (!Page.IsValid)
{
return;
}
var textbox = SpouseBasicInfo.FindControl("textbox") as TextBox;
string spouseName = textbox.Text;
}
protected void RptDependents_ItemCreated(object sender, RepeaterItemEventArgs e)
{
switch (e.Item.ItemType)
{
case ListItemType.Item:
case ListItemType.AlternatingItem:
{
var dependentInfo = e.Item.DataItem as String;
var dependentBasicInfo = e.Item.FindControl("DependentBasicInfo") as userInfo;
if (dependentBasicInfo == null) return;
dependentBasicInfo.applicantTitle = "Dependent " + (e.Item.ItemIndex + 1);
dependentBasicInfo.identity = dependentInfo;
dependentBasicInfo.Bind();
}
break;
}
}
}
</html>
