Yearly Archives: 2009

7-Zip Can Be Used to Open ISO Archives

Did you know that 7-Zip can open and extract ISO archives? I had to install OneNote today from the MSDN ISO and I didn’t have an virtual drive/ISO mounting tool installed on my work PC. So I tried to open the ISO in 7-Zip and it opened it just fine. All I then had to do was to extract the files to a temp folder and did the install from there.

image

CircuitCity.com Comes Back from the Dead

I used to shop at Circuit City a lot and I kind of miss it now that it’s gone. I live in Richmond’s West End where there used to be two big Circuit City stores within a few miles of each others. Today I got an email from CircuitCity.com and it looks like the web site now has a new owner.

image

A few months ago when they were having the liquidation sale at one of their headquarter buildings, I came in, bought a few things, and took a few pictures. Having gone through a dotcom bust earlier in my career, the site actually looked eerily familiar.

Circuit City Headquarter

Circuit City Headquarter

Circuit City Headquarter 

20090226-IMG_1386

Convert List<T>/IEnumerable to DataTable/DataView

Greetings visitor from the year 2026! You can get the source code for this from my Github repo here. Thanks for visiting.

Here’s a method to convert a generic List<T> to a DataTable. This can be used with ObjectDataSource so you get automatic sorting, etc.

using statement: using System.Reflection;
...

/// <summary>
/// Convert a List{T} to a DataTable.
/// </summary>
public DataTable ToDataTable<T>(List<T> items)
{
    var tb = new DataTable(typeof (T).Name);

    PropertyInfo[] props = typeof (T).GetProperties(BindingFlags.Public | BindingFlags.Instance);

    foreach (PropertyInfo prop in props)
    {
        Type t = GetCoreType(prop.PropertyType);
        tb.Columns.Add(prop.Name, t);
    }

    foreach (T item in items)
    {
        var values = new object[props.Length];

        for (int i = 0; i < props.Length; i++)
        {
            values[i] = props[i].GetValue(item, null);
        }

        tb.Rows.Add(values);
    }

    return tb;
}

/// <summary>
/// Determine of specified type is nullable
/// </summary>
public static bool IsNullable(Type t)
{
    return !t.IsValueType || (t.IsGenericType && t.GetGenericTypeDefinition() == typeof(Nullable<>));
}

/// <summary>
/// Return underlying type if type is Nullable otherwise return the type
/// </summary>
public static Type GetCoreType(Type t)
{
    if (t != null && IsNullable(t))
    {
        if (!t.IsValueType)
        {
            return t;
        }
        else
        {
            return Nullable.GetUnderlyingType(t);
        }
    }
    else
    {
        return t;
    }
}

Problem with jqModal/jQuery JavaScript Intellisense and Workaround

Is anyone else experiencing a problem with Visual Studio 2008 Intellisense with jQuery and jqModal?

It seems that jqModal (a jQuery plugin for modal dialogs) is breaking jQuery Intellisense on my Visual Studio 2008 setup. Without a reference to jqModal.js, jQuery Intellisense works fine:

image

As soon as I add the reference to jqModal.js, the Intellisense stops working with this error:

Warning    1    Error updating JScript IntelliSense: …\scripts\jquery-1.3.2-vsdoc.js: ‘jQuery.support.htmlSerialize’ is null or not an object @ 1430:4

Workaround

To work around the problem, generate the script include tag dynamically so that the JavaScript Intellisense engine doesn’t see the jqModal reference at design time.

<head runat="server">
    <title>My Web</title>
    <asp:Literal ID="LitJqModalScript" runat="server"></asp:Literal>
    <script src="../scripts/jquery-1.3.2.js" type="text/javascript"></script>
</head>

 

protected override void OnLoad(EventArgs e)
{
    base.OnLoad(e);
 
    LitJqModalScript.Text = @"<script src=""../scripts/jqModal.js"" type=""text/javascript""></script>";
}
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