Web Forms :: Is GUID (globally Unique Identifier) Unique

Aug 25, 2010

Is GUID (globally unique identifier) really unique, or it can be duplicate.

System.Guid.NewGuid().ToString()

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I need to generate a Unique Reference number that has 7 digits.

It should be formatted in the following way:

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2nd: represents year of booking A(2010), B(2011),C(2012), etc

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How do I convert a string to a uniqeid data type?

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[Code]....

[Code]....

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I'm creating a website with sql server db (built in membership database). I design it best possible. Im reluctant to use text fields as identifiers, but this is pretty much my first sql server db.

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in the code in front i have:

Code:
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
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and code behind is taking a url param (guid) and passing it to the select above
it looks like this:

Code:
protected void Page_Load(object sender, EventArgs e)
{
string id = Request["article"];
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First of all here is my code chunk.

[Code]....

Right now I am creating this session with the session key "PhonePart" which is also the name of object I am passing in as a parameter in first method. In subsequent methods, I use the the same name to retreive and clear session value. My problem is, this approach works fine If I instantiate a single object of the class where these methods are defined and using that object call the methods, but when I create another instance of the same class and calls for instance method AddToSession and pass that instance, it overwrites the session value stored by the first instance of the class as the session key is the same that is "PhonePart".

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I have a text box that has values separated by a comma. I am trying to remove the duplicate values for, example this text box will have values like:

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public string RemoveDuplicates(string items)
{
StringBuilder Result = new StringBuilder();[code]....

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I ImageMag i have set different hopspots. Can you tell how to set each hotspot a unique ID ?I have to pass these ID to some other controls so that some effect take place on mouse hover.presently, effect takes palce when mouse hovers on any part of the image. I want to restrict that effect only for hotspots.

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