ASP.NET

1. If I have multiple layers like one Web Service and another one is UI layer, then is it better to include Elmah in both projects separately or just adding it on one Project UI is fine?
2. Elmah to Work do I need to log the Errors into Elmah Database explicitly or is the Elmah going to catch the exceptions and write it in the Elmah Database, I have included the Connection string and details in the Web Config of both the Service and UI and included the DLLs as well in both the applications. Is it enough or do I need to write the Exceptions into the Elmah Db
3. If I have multiple layers of application, one in that is UI layer and another one is Web Service Layer, then how would I know if any error happened in Data access layer within Web Serice or Business layer within Web Service, do I need to log it into Database of Elmah or how can I do that?
4. Which is better way to log errors using Elmah, file or Database, I am using Database, it it ok?
5. My most important Concern is how to secure my application? When I have Elma, it shows that we can directly access the errors, I want to make sure only the Developers should be able to access the Errors or Exceptions information, not even Admin users of the Application, can you please give me some suggestions.

I am Creating my dashboard page to show line chart pie chart and bar chart in asp.net web form. I don't have any idea about that can you help me to develope the page or any links where i can get demo. Which js file i have to use for this. I don't have idea please suggest me or give me the sample code asap. Its client urgent requirement. help me please.

    public class CustomModelValidatorProvider : System.Web.Mvc.DataAnnotationsModelValidatorProvider
    {
        protected override IEnumerable<System.Web.Mvc.ModelValidator> GetValidators(System.Web.Mvc.ModelMetadata metadata, ControllerContext context, IEnumerable<Attribute> attributes)
        {
            var z = metadata.PropertyName;
            if ((metadata.PropertyName == "Code") 
                && (metadata.ContainerType.FullName == "DHCS.BH.Provider.Models.LookupTable"))
            {
                LookupTable model = metadata.Container as LookupTable;

                var newAttributes = new List<Attribute>(attributes);
                var stringLength = newAttributes.OfType<StringLengthAttribute>().FirstOrDefault();
                if (stringLength != null)
                {
                    newAttributes.Remove(stringLength);

                    if (model.CodeLength != 0)
                    {
                        newAttributes.Add(new StringLengthAttribute(model.CodeLength)
                        {
                            MinimumLength = model.CodeLength,
                            ErrorMessage = @"The field {{0}} length must be at least {model.CodeLength}."
                        });
                    }

                    attributes = newAttributes;
                }
            }
            return base.GetValidators(metadata, context, attributes);
        }

        public string GetPropertyName<T>(Expression<Func<T>> propertyLambda)
        {
            var me = propertyLambda.Body as MemberExpression;

            if (me == null)
            {
                throw new ArgumentException("You must pass a lambda of the form: '() => Class.Property' or '() => object.Property'");
            }

            return me.Member.Name;
        }
    }

@model DHCS.BH.Provider.Models.LookupTable

@{
    ViewBag.Title = "EditLookup";
}

@using (Html.BeginForm())
{
    @Html.AntiForgeryToken()

<pre>
<div class="k-edit-form-container">
    @*<div class="editor-field">
        @Html.Kendo().TextBoxFor(model => model.LookupTableId).HtmlAttributes(new { autocomplete = "off", id = "idXYZ" })
    </div>*@
    @Html.HiddenFor(model => model.LookupTableId, new { id = "txtLookupTableId" })
    <div class="editor-label">
        @Html.LabelFor(model => model.Code)
    </div>
    <div class="editor-field">
        @Html.Kendo().TextBoxFor(model => model.Code).HtmlAttributes(new { autocomplete = "off", id = "idTxtForCodeLookupCode" })<br />
        &nbsp;<br />
        <label id="lblCodeValidationMessage" style="color:gray;font-style:italic;font-size:smaller;font-weight:normal;">Testing</label>
    </div>
    <div class="editor-label">
        @Html.LabelFor(model => model.Description)
    </div>
    <div class="editor-field">
        @Html.Kendo().TextBoxFor(model => model.Description).HtmlAttributes(new { autocomplete = "off", id = "idTxtForDescLookupCode" })
        &nbsp;&nbsp;&nbsp;
        <label id="lblDescriptionValidationMessage" style="color:gray;font-style:italic;font-size:x-small;font-weight:normal;"></label><br />
    </div>

    <div class="editor-label" >
        <label id="lblIsValid">Is Active: </label>
    </div>
    <div class="editor-field" style="padding-top: 10px;">
        @Html.Kendo().CheckBoxFor(model => model.IsValid)
    </div>
</div>