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09.06.2008 at 10:31PM PDT, ID: 23709707
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8.0

validation group

Asked by -Dman100- in Programming for ASP.NET, Visual Studio

I am setting up validation on a webform and I have a 4 dropdownlists that a user can select a time...i.e.
hours, minutes, am/pm, and time zone.

I've made each dropdownlist required using 4 separate required field validators.  I'm using the same error message for each of the four required field validators.

When I submit the form and the time has not been selected, all four error messages display.  I only want the the error message to display once until all four dropdowns have been properly selected and then of course the validation will be correct and the error message wouldn't display.

Can I use a validation group to only display the error message once?  If not, how can I accomplish this?

See below for the page code:Start Free Trial 
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aspx page code:
 
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AdobeSessions.aspx.cs" Inherits="AdobeSessions" Title="Adobe Online Session Request" %>
 
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
    <style type="text/css">
    .modalBackground {
        background-color:Gray;
        filter:alpha(opacity=70);
        opacity:0.7;
     }
     .modalPopup {
        background-color:#ffffdd;
        border-width:3px;
        border-style:solid;
        border-color:Gray;
        padding:3px;
        width:500px;
     }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:Label ID="lblFormTitle" runat="server" Font-Bold="True" Font-Size="X-Large"
            Text="<p>Adobe <sup>&reg;</sup> Acrobat <sup>&reg;</sup> Connect<sup>TM</sup> Pro Session REQUEST FORM</p>"></asp:Label>
        <table width="675" cellpadding="5" cellspacing="0" border="0">
            <tr>
                <td align="right" valign="top" style="width: 300px">
                    <asp:RequiredFieldValidator ID="valrRequestor" runat="server" ControlToValidate="txtRequestor"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" SetFocusOnError="True">* Name of person requesting session:</asp:RequiredFieldValidator>
        <asp:Label ID="lblRequestor" runat="server" Text="Name of person requesting session:"></asp:Label></td>
                <td>
        <asp:TextBox ID="txtRequestor" runat="server" Width="265px"></asp:TextBox></td>
            </tr>
            <tr>
                <td align="right" style="width: 300px" valign="top">
                    <asp:RequiredFieldValidator ID="valrRegion" runat="server" ControlToValidate="ddlRegion"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" ErrorMessage="* Region:" InitialValue="-1" SetFocusOnError="True">* Region:</asp:RequiredFieldValidator>
                    <asp:Label ID="lblRegion" runat="server" Text="Region:"></asp:Label></td>
                <td>
                    <asp:DropDownList ID="ddlRegion" runat="server">
                        <asp:ListItem Selected="True" Value="-1">Select</asp:ListItem>
                        <asp:ListItem Value="Northeast">Northeast</asp:ListItem>
                        <asp:ListItem>Mid-Atlantic</asp:ListItem>
                        <asp:ListItem>South</asp:ListItem>
                        <asp:ListItem>West</asp:ListItem>
                        <asp:ListItem>Mid-West</asp:ListItem>
                    </asp:DropDownList></td>
            </tr>
            <tr>
                <td align="right" valign="top" style="width: 300px">
                    <asp:RequiredFieldValidator ID="valrLeader" runat="server" ControlToValidate="txtLeader"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" ErrorMessage="* Name of person to lead sessioin:"
                        SetFocusOnError="True"></asp:RequiredFieldValidator>
        <asp:Label ID="lblLeader" runat="server" Text="Name of person to lead session:"></asp:Label></td>
                <td>
        <asp:TextBox ID="txtLeader" runat="server" Width="265px"></asp:TextBox></td>
            </tr>
            <tr>
                <td align="right" valign="top" style="width: 300px">
                    <asp:RequiredFieldValidator ID="valrTitle" runat="server" ControlToValidate="txtTitle"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" ErrorMessage="* Title of Session:"
                        SetFocusOnError="True"></asp:RequiredFieldValidator>
        <asp:Label ID="lblTitle" runat="server" Text="Title of Session:"></asp:Label></td>
                <td>
        <asp:TextBox ID="txtTitle" runat="server" Width="265px"></asp:TextBox></td>
            </tr>
            <tr>
                <td align="right" valign="top" style="width: 300px">
                    <asp:RequiredFieldValidator ID="valrDescription" runat="server" ControlToValidate="txtDescription"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" ErrorMessage="* Description:"
                        SetFocusOnError="True"></asp:RequiredFieldValidator>
        <asp:Label ID="lblDescription" runat="server" Text="Description:"></asp:Label></td>
                <td>
        <asp:TextBox ID="txtDescription" runat="server" Width="265px"></asp:TextBox></td>
            </tr>
            <tr>
                <td align="right" valign="top" style="width: 300px">
                    <asp:RegularExpressionValidator ID="valeDate" runat="server" ControlToValidate="txtDate"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" ErrorMessage="* Date needed:"
                        SetFocusOnError="True" ValidationExpression="^\d{1,2}\/\d{1,2}\/\d{4}$"></asp:RegularExpressionValidator>
                    <asp:RequiredFieldValidator ID="valrDate" runat="server" ControlToValidate="txtDate"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" ErrorMessage="* Date needed:"
                        SetFocusOnError="True"></asp:RequiredFieldValidator>
        <asp:Label ID="lblDate" runat="server" Text="Date needed:"></asp:Label></td>
                <td>
        <asp:TextBox ID="txtDate" runat="server" Width="65px"></asp:TextBox>
        <asp:Image ID="imgCalendar" runat="server" ImageUrl="~/Images/cal.gif" />
        <cc1:CalendarExtender ID="CalendarExtender1" runat="server" PopupButtonID="imgCalendar"
            TargetControlID="txtDate">
        </cc1:CalendarExtender>
                </td>
            </tr>
            <tr>
                <td align="right" valign="top" style="width: 300px">
                    <asp:RequiredFieldValidator ID="valrZone" runat="server" ControlToValidate="ddlZone"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" ErrorMessage="* Time needed:"
                        InitialValue="-1" SetFocusOnError="True"></asp:RequiredFieldValidator>
                    <asp:RequiredFieldValidator ID="valrAMPM" runat="server" ControlToValidate="ddlAMPM"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" ErrorMessage="Time needed:"
                        InitialValue="-1" SetFocusOnError="True"></asp:RequiredFieldValidator>
                    <asp:RequiredFieldValidator ID="valrMinutes" runat="server" ControlToValidate="ddlMinutes"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" ErrorMessage="* Time needed:"
                        InitialValue="-1" SetFocusOnError="True"></asp:RequiredFieldValidator>
                    <asp:RequiredFieldValidator ID="valrHours" runat="server" ControlToValidate="ddlHours"
                        Display="Dynamic" EnableClientScript="False" Enabled="False" ErrorMessage="* Time needed:"
                        InitialValue="-1" SetFocusOnError="True"></asp:RequiredFieldValidator>
        <asp:Label ID="lblTime" runat="server" Text="Time needed:"></asp:Label></td>
                <td>
                    <asp:DropDownList ID="ddlHours" runat="server">
                    </asp:DropDownList>
                    <asp:DropDownList ID="ddlMinutes" runat="server">
                        <asp:ListItem Value="-1">Select</asp:ListItem>
                        <asp:ListItem Value="00">:00</asp:ListItem>
                        <asp:ListItem Value="15">:15</asp:ListItem>
                        <asp:ListItem Value="30">:30</asp:ListItem>
                        <asp:ListItem Value="45">:45</asp:ListItem>
                    </asp:DropDownList>
                    <asp:DropDownList ID="ddlAMPM" runat="server">
                        <asp:ListItem Value="-1">Select</asp:ListItem>
                        <asp:ListItem>AM</asp:ListItem>
                        <asp:ListItem>PM</asp:ListItem>
                    </asp:DropDownList>
                    <asp:DropDownList ID="ddlZone" runat="server">
                        <asp:ListItem Value="-1">Select</asp:ListItem>
                        <asp:ListItem>EST</asp:ListItem>
                        <asp:ListItem>CST</asp:ListItem>
                        <asp:ListItem>MST</asp:ListItem>
                        <asp:ListItem>PST</asp:ListItem>
                    </asp:DropDownList></td>
            </tr>
            <tr>
                <td align="right" valign="top" style="width: 300px">
        <asp:Label ID="lblDuration" runat="server" Text="Duration of session:"></asp:Label></td>
                <td>
                    <asp:TextBox ID="txtDuration" runat="server" Width="265px"></asp:TextBox></td>
            </tr>
            <tr>
                <td align="right" valign="top" style="width: 300px">
                    <asp:Label ID="lblSessionType" runat="server" Text="Type of Session:"></asp:Label></td>
                <td>
                    <asp:RadioButtonList ID="rblExternalInternal" runat="server" RepeatColumns="3"
                        RepeatDirection="Horizontal" RepeatLayout="Flow" OnSelectedIndexChanged="rblExternalInternal_SelectedIndexChanged" AutoPostBack="True">
                        <asp:ListItem>Internal</asp:ListItem>
                        <asp:ListItem>External Non-Billable</asp:ListItem>
                        <asp:ListItem>External Billable</asp:ListItem>
                    </asp:RadioButtonList></td>
            </tr>
            <asp:Panel ID="pnlParticipants" runat="server" Visible="False">
            <tr>
                <td align="right" valign="top" style="width:300px">
                    <asp:Label ID="lblParticipants" runat="server" Text="Names and email addresses for ALL participants (internal and external)"></asp:Label>
                </td>
                   <td><asp:GridView ID="GridView1" runat="server" CellPadding="5" Width="350px">
                        <HeaderStyle HorizontalAlign="Left" />
                    </asp:GridView></td>
            </tr>
            <tr>
                <td align="right" valign="top" style="width:300px"><asp:Label ID="lblSiteName" runat="server" Text="Site/District Name:"></asp:Label></td>
                <td><asp:TextBox ID="txtSiteName" runat="server" Width="260px"></asp:TextBox></td>
            </tr>
            <tr>
                <td align="right" valign="top" style="width:300px"><asp:Label ID="lblLabNumber" runat="server" Text="Lab Number:"></asp:Label></td>
                <td><asp:TextBox ID="txtLabNumber" runat="server" Width="260px"></asp:TextBox></td>
            </tr>
            </asp:Panel>
            <tr>
                <td align="right" valign="top" style="width: 300px">
        <asp:Label ID="lblConferenceCall" runat="server" Text="Do you need a conference call number for the audio portion of the session?"></asp:Label></td>
                <td valign="bottom">
                    <asp:RadioButtonList ID="rblConferenceCall" runat="server" RepeatColumns="2"
                        RepeatDirection="Horizontal" RepeatLayout="Flow" AutoPostBack="true">
                        <asp:ListItem>Yes</asp:ListItem>
                        <asp:ListItem>No</asp:ListItem>
                    </asp:RadioButtonList></td>
            </tr>
            <tr>
                <td align="right" valign="top" style="width: 300px">
                </td>
                <td>
                    <asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClick="btnSubmit_Click" />
                    <asp:Button ID="btnReset" runat="server" OnClick="btnReset_Click" Text="Reset" /></td>
            </tr>
        </table>
        <asp:Panel ID="pnlAddParticipants" runat="server" CssClass="modalPopup" style="display:none;">
        <table width="500" cellpadding="5" cellspacing="0" border="0">
            <tr>
                <td align="right" valign="top">
                    <asp:Label ID="lblName" runat="server" Text="Participant Name:"></asp:Label></td>
                <td>
                    <asp:TextBox ID="txtName" runat="server" Width="260px"></asp:TextBox></td>
            </tr>
            <tr>
                <td align="right" valign="top">
                    <asp:Label ID="lblEmail" runat="server" Text="Email Address:"></asp:Label></td>
                <td>
                    <asp:TextBox ID="txtEmail" runat="server" Width="260px"></asp:TextBox></td>
            </tr>
            <tr>
                <td align="right" valign="top">
                </td>
                <td>
                    <asp:Button ID="btnAdd" runat="server" Text="Add" OnClick="btnAdd_Click" />
                    <asp:Button ID="btnClose" runat="server" Text="Close Window" />
                    </td>
            </tr>
        </table>
        </asp:Panel>
        <cc1:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID="HiddenField1" PopupControlID="pnlAddParticipants" BackgroundCssClass="modalBackground" DropShadow="true"  >
        </cc1:ModalPopupExtender>
        <asp:HiddenField ID="HiddenField1" runat="server" />
    </div>
    </form>
</body>
</html>
 
 
code-behind:
 
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
 
public partial class AdobeSessions : System.Web.UI.Page
{
    DataTable myDt = null;
 
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            LoadHours();
 
            myDt = new DataTable();
            myDt = CreateDataTable();
            Session["myDatatable"] = myDt;
 
            this.GridView1.DataSource = ((DataTable)Session["myDatatable"]).DefaultView;
            this.GridView1.DataBind();
        }
    }
 
    protected void LoadHours()
    {
        ddlHours.Items.Add(new ListItem("Select", "-1"));
        for (int i = 1; i <= 12; i++)
        {
            ddlHours.Items.Add(new ListItem(i.ToString(), i.ToString()));
        }
    }
 
    protected void btnReset_Click(object sender, EventArgs e)
    {
        cleanFields(this);
    }
 
    protected void cleanFields(Control container)
    {
        foreach (Control c in container.Controls)
        {
            if (c is TextBox)
            {
                ((TextBox)c).Text = string.Empty;
            }
            if (c is DropDownList)
            {
                ((DropDownList)c).SelectedIndex = 0;
            }
            if (c is RadioButtonList)
            {
                ((RadioButtonList)c).ClearSelection();
            }
            this.cleanFields(c);
        }
        pnlParticipants.Visible = false;
        DataTable dt = new DataTable();
        GridView1.DataSource = dt;
        GridView1.DataBind();
    }
 
    protected void rblExternalInternal_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (rblExternalInternal.SelectedItem.Value.ToString().ToLower() == "external billable")
        {
            this.ModalPopupExtender1.Show();
            pnlParticipants.Visible = true;
        }
        else
        {
            pnlParticipants.Visible = false;
        }
    }
 
    private DataTable CreateDataTable()
    {
        DataTable myDataTable = new DataTable();
 
        DataColumn myDataColumn;
 
        myDataColumn = new DataColumn();
        myDataColumn.DataType = Type.GetType("System.String");
        myDataColumn.ColumnName = "Name";
        myDataTable.Columns.Add(myDataColumn);
 
        myDataColumn = new DataColumn();
        myDataColumn.DataType = Type.GetType("System.String");
        myDataColumn.ColumnName = "Email";
        myDataTable.Columns.Add(myDataColumn);
 
        return myDataTable;
    }
 
    private void AddDataToTable(string name, string email, DataTable myTable)
    {
        DataRow row;
 
        row = myTable.NewRow();
 
        row["Name"] = name;
        row["Email"] = email;
 
        myTable.Rows.Add(row);
    } 
 
    protected void btnAdd_Click(object sender, EventArgs e)
    {
        this.ModalPopupExtender1.Show();
        AddDataToTable(this.txtName.Text.Trim(), this.txtEmail.Text.Trim(), (DataTable)Session["myDatatable"]);
 
        this.GridView1.DataSource = ((DataTable)Session["myDatatable"]).DefaultView;
        this.GridView1.DataBind();
 
        this.txtName.Text = "";
        this.txtEmail.Text = "";
    }
 
    protected void EnableValidators(bool toggle)
    {
        valrRequestor.Enabled = toggle;
        valrRegion.Enabled = toggle;
        valrLeader.Enabled = toggle;
        valrTitle.Enabled = toggle;
        valrDescription.Enabled = toggle;
        valrDate.Enabled = toggle;
        valeDate.Enabled = toggle;
        valrHours.Enabled = toggle;
        valrMinutes.Enabled = toggle;
        valrAMPM.Enabled = toggle;
        valrZone.Enabled = toggle;
    }
 
    protected void ValidateControls()
    {
        Label[] controls = { lblRequestor, lblRegion, lblLeader, lblTitle, lblDescription, lblDate, lblTime };
        IValidator[][] validators = { new IValidator[] { valrRequestor }, 
            new IValidator[] { valrRegion }, new IValidator[] { valrLeader },
            new IValidator[] { valrTitle }, new IValidator[] { valrDescription },
            new IValidator[] { valrDate, valeDate }, new IValidator[] { valrHours, valrMinutes, valrAMPM, valrZone }};
 
        for (int i = 0; i < controls.Length; i++)
        {
            bool valid = true;
            foreach (IValidator validator in validators[i])
            {
                valid &= validator.IsValid;
            }
            controls[i].Visible = valid;
        }
    }
 
    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        EnableValidators(true);
 
        Page.Validate();
 
        if (Page.IsValid)
        {
            //cleanFields(this);
        }
        else
        {
            ValidateControls();
        }
 
    }
}
[+][-]09.06.2008 at 11:14PM PDT, ID: 22410337

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[+][-]09.06.2008 at 11:35PM PDT, ID: 22410383

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[+][-]09.06.2008 at 11:38PM PDT, ID: 22410387

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About this solution

Zones: Programming for ASP.NET, Visual Studio
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Solution Provided By: BondinASP
Participating Experts: 1
Solution Grade: A
 
 
 
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