我有一个控件,应该提示用户选择会话的 customerId 或页面的旧 ViewState customerId。如果视图状态中的值与会话中的值不匹配,则会出现一个 jQuery 模式对话框。该对话框有两个按钮,一个应显示 ViewState 值,另一个应显示会话值。具有 ViewState 值的按钮还具有 OnClientClick 属性。我已经用一个简单的测试页面测试了这段代码,该页面只包含一个按钮和我的控件。简单的测试页面有效。当我将此控件添加到现有页面时,我可以显示对话框,但 button.text(在后面的代码中分配)是空的,并且 OnClientClick 的函数不会触发。
ascx
<script type="text/javascript">
function ShowCustomerChangedModalDialog() {
var dlg = $("#CustomerChangedModal").dialog({
title: 'Select Customer ID',
resizable: false,
modal: true
});
dlg.parent().appendTo(jQuery("form:first"));
};
function changeCustomer(customerId, baseUrl) {
$.ajax({ url: "/General/Accounts/change.account?id=" + customerId + "&admin=false", async: false });
$("#CustomerChangedModal").dialog('close');
return false;
}
</script>
<div id="CustomerChangedModal" style="width: 440px; height: 250px; overflow: auto; display: none;">
The session information has changed.
Which account ID do you wish to use?
<br />
<br />
<asp:Button ID="btnNewCustId" runat="server" OnClick="btnNewCustId_Click" />
<asp:Button ID="btnOldCustId" runat="server" />
</div>
后面的代码
public partial class CustomerChanged : System.Web.UI.UserControl
{
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
this.Page.PreLoad += Page_PreLoad;
}
void Page_PreLoad(object sender, EventArgs e)
{
if (!IsPostBack)
{
ViewState.Add("CustID", Globals.CurrentCust.CustId);
}
if (IsPostBack)
{
Page.Validate();
ValidateCustomerId();
}
}
protected void ValidateCustomerId()
{
if (Convert.ToInt32(ViewState["CustID"]) != Globals.CurrentCust.CustId)
{
//button properties assignments
btnOldCustId.Text += "Old AccountId\n" + ViewState["CustID"].ToString();
btnNewCustId.Text += "New AccountId\n" + Globals.CurrentCust.CustId.ToString();
btnOldCustId.OnClientClick = string.Format("return changeCustomer({0},'{1}');", ViewState["CustID"].ToString(), Globals.GeneralSiteUrl);
CustomValidator err = new CustomValidator();
err.IsValid = false;
err.ErrorMessage = "The customer has changed.";
Page.Validators.Add(err);
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (IsPostBack)
{
if (!Page.IsValid)
{
ScriptManager.RegisterStartupScript(this.Page, this.Page.GetType(), "CustomerChangedModalDialog", "ShowCustomerChangedModalDialog();", true);
}
}
}
protected void btnNewCustId_Click(object sender, EventArgs e)
{
Response.Redirect(Request.RawUrl);
}
}
任何帮助,将不胜感激。