Obrigada! Funcionou, mas deixe eu te perguntar.
Na verdade eu estava testando o alert o meu código abaixo está com Validation e alert no javascript e não aparece o alert que eu quero.
Já tentei individualmente cada um e nada.
Sabe o que pode ser?Estou no vs 2012 e já tentei no 2010 e também não funciona.
Não sei se eu deveria importar algo.
<%@ Page Title="" Language="C#" MasterPageFile="~/FrontPage.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="IASD.ASCS.WebForm.register.group.Default" %>
<%@ MasterType VirtualPath="~/FrontPage.Master" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
<script type="text/javascript">
function TreeNodeCheckChanged(event, control) {
// Valid for IE and Firefox/Safari/Chrome.
var obj = window.event ? window.event.srcElement : event.target;
var source = window.event ? window.event.srcElement.id : event.target.id;
source = source.replace(control.id + "t", control.id + "n");
var checkbox = document.getElementById(source);
if (checkbox != null && obj.tagName == "INPUT" && obj.type == "checkbox") {
__doPostBack(checkbox.id, "");
}
}
</script>
<script type="text/javascript">
function validate() {
var txt = document.getElementById('txtGroupName.ClientID').value;
if (txt == "") {
alert("Preencha o Campo Obrigatório!");
document.getElementById("txtGroupName.ClientID").focus();
return false;
}
}
</script>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<div class="esp_campo">
<cc1:TabContainer ID="TabGroup" runat="server" TabIndex="0" Width="100%" CssClass="ajax__myTab">
<cc1:TabPanel runat="server" HeaderText="Grupo" ID="tbgroups">
<HeaderTemplate>
Grupo
</HeaderTemplate>
<ContentTemplate>
<div id="Form">
<div class="table_search_">
<table style="width: 100%;">
<tr>
<td>
<asp:Label ID="lbName" runat="server" Text="Nome"></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:TextBox ID="txtGroupName" CssClass="textbox_search" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtGroupName" ErrorMessage="Campo Obrigatório" ValidationGroup="vsGroup"></asp:RequiredFieldValidator>
<asp:HiddenField ID="hfGrupoID"
runat="server" />
</td>
</tr>
</table>
</div>
</div>
<div class="new_group">
<asp:ImageButton ID="btnNew" runat="server" ImageUrl="~/images/new.png" OnClick="btnNew_Click" ToolTip="Novo Grupo" />
<asp:ImageButton ID="btnSave" runat="server" ImageUrl="~/images/save.png" OnClick="btnSave_Click" OnClientClick="Validate()" ToolTip="Salvar Grupo" ValidationGroup="vsGroup" />
<asp:ImageButton ID="btnDelete" runat="server" ImageUrl="~/images/delete.png" OnClick="btnDelete_Click" />
</div>
<div class="GridUser">
<asp:GridView ID="gvGroup" Width="30%" runat="server" CssClass="GridViewUser" GridLines="None"
CellPadding="4" AutoGenerateColumns="False" OnRowDeleting="gvGroup_RowDeleting"
OnRowUpdating="gvGroup_RowUpdating">
<AlternatingRowStyle CssClass="GridAlternativeUser" />
<Columns>
<asp:BoundField HeaderText="ID" DataField="GroupID" />
<asp:BoundField HeaderText="Nome" DataField="Name" />
<asp:ButtonField ButtonType="Image" CommandName="Update" ImageUrl="~/images/edit.png" />
<asp:ButtonField ButtonType="Image" CommandName="Delete" ImageUrl="~/images/delete16.png" />
</Columns>
<HeaderStyle CssClass="GridHeaderGroup" />
<PagerSettings Mode="NumericFirstLast" PageButtonCount="5" />
<PagerStyle CssClass="GridPagerGroup" />
<RowStyle CssClass="GridRowGroup" />
</asp:GridView>
</div>
<asp:ValidationSummary ID="vsGroup" runat="server" ValidationGroup="vsGroup" ShowSummary="False" ShowMessageBox="True" />
</ContentTemplate>
</cc1:TabPanel>
<cc1:TabPanel runat="server" HeaderText="Menus" ID="tbMenus">
<HeaderTemplate>
Menus Por Grupo</HeaderTemplate>
<ContentTemplate>
<div class="page_name">
<asp:Label ID="lblTabName" runat="server" Text="Menus do Grupo"></asp:Label></div>
<div class="buttons">
</div>
<div class="forms">
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:TreeView ID="treeMenu" runat="server" CssClass="AspNet-TreeView" ShowLines="True"
ShowCheckBoxes="All" OnTreeNodeCheckChanged="treeMenu_TreeNodeCheckChanged" ShowExpandCollapse="True"
Enabled="true">
<RootNodeStyle CssClass="AspNet-TreeView-Root" />
</asp:TreeView>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="treeMenu" EventName="TreeNodeCheckChanged"/>
</Triggers>
</asp:UpdatePanel>
</div>
</ContentTemplate>
</cc1:TabPanel>
</cc1:TabContainer>
</div>
</asp:Content>
A vantagem de ser inteligente é que podemos fingir que somos imbecis enquanto ao contrario é completamente impossivel