It's a better way to use a custom validation control provided by the VS IDE.

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Usually, the host provider (saying the virual space provider) will give you a host management tool on his website and of course he will tell you how to set DNS via their tools too. By using the tool it is very easy to do mapping between a IP and a domain name.

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WCF's advantages: 1) Simple and easy to use; 2) Unification of existing .NET Framework communication technologies; 3) Explicit service orientation; 4) Support for cross-vendor interoperability, including reliability, security, and transactions. Of course, it can be called by the J2EE applications.

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Storing the connstring to Session is a good way so each user will hold his own connstring. Static variable is used at the Appliction level, which leads to your problem.

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Pls. see my answer before. http://www.codeproject.com/Messages/3011416/Re-How-to-send-Mail-through-SMTP.aspx[^]

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You are binding the DataSource manually, so in this case you have to override the PageIndexChanging and PageIndexChanged handler. For example, protected void GridViewXXX_PageIndexChanged(object sender, EventArgs e) { this.SqlDataSourceXXX.SelectCommand = "XXX"; } protected void GridViewXXX_PageIndexChanging(object sender, GridViewPageEventArgs e) { this.GridViewXXX.PageIndex = e.NewPageIndex; }

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If you created a newly empty project? That maybe causes the error. I suggest you create a normal project including default files like default.aspx etc. And then delete these default files and copy your files to the new project. Generally, the path of source codes is stored in the .sln file. You can open it with NotePad to check it.

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I don't think LineTo() causes high usage of resource&RAM. You are exactly doing it in wrong way. Firstly, you need to understand the callback function of a timer in VC can be re-called while previous call is not completed yet. Basically, each callback will create a thread. Secondly, I don't understand why you create a thread in the callback function, which will lead to run many threads at the same time. So i think running many threads at the same time causes your problem. If you want to update you UI, you can set a timer or a thread in your UI class which gets data and draw them on UI periodically. Meanwhile, there is another thead to prepare those drawing data.

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Maybe other codes bring memory error. BTW, you can use CString here.

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Hi guy, The 'nowrap' property won't take effect on the width in % but px. You can set the width of controls in px and the same time set the 'nowrap' property to controls.

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Maybe below codes can give you some inspiration! function onpreviewsomething(content) { var win_preview = window.open("", "_blank", ""); win_preview.document.open('text/html', 'replace'); win_preview.opener = null; win_preview.document.writeln(content); win_preview.document.close(); return false; }

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Here is a sample which moves the selected item up. You can revise to meet your need. protected void LinkButtonMoveUpProducts_Click(object sender, EventArgs e) { if (this.ListBoxProducts.SelectedIndex <= 0) { return; } int index = this.ListBoxProducts.SelectedIndex; ListItem li = this.ListBoxProducts.SelectedItem; this.ListBoxProducts.Items.Remove(li); this.ListBoxProducts.Items.Insert(index - 1, li); }

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Obviously, you have to write some codes by yourself to implement that. A general solution is: 1) A table in your DB stores the email and password of all members. 2) A form in your website has three fields: email, old password and new password. 3) After the member submits the form, you will match the email in your DB and accordingly change his password. 4) At last, you need to send a mail to the member to notify his password change. Notes: If a member forget his password and the stored format of the password is 'SHA1', he will need to answer some extra questions for security to get a newly initializing password provided by your system.

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Very simple! You can handle that as below: string filePath = Server.MapPath("~/folder1/example.gif"); if (File.Exists(filePath)) { //show a message to the user }

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I presume you are implementing website using asp.net/c# on the Microsoft platform: First assure the IIS your website resided in have installed SMTP Virtual Server and some necessary configuration is well done. Second when a new user registers into your website successfully, you can trigger a mailing event.

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You can handle that as below: if (dr["fieldname"] != null) { //do something }

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Of course, you should divide your development task into several stages: preliminary/concept design (~15%), detailed design (~15%), implementation (55%) and unit test (~15%).

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You can use XPath to simplify your work. For example: XmlDataDocument xmlDoc = new XmlDataDocument(); xmlDoc.Load("yourfile.xml"); XmlNodeList xmlNodeList = xmlDoc.SelectNodes("roottag/big"); //XPath expression More detail information pls. refer to Microsoft MSDN.

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Actually, Microsoft has provided a bran-new deployment way named 'Click Once' to developers. You can referrence to below hyperlink to study it: http://msdn.microsoft.com/en-us/library/t71a733d.aspx[^]

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Obviously, the 2nd snippet is better because many temporary variables will be generated in the 1st snippet. That is, more memories are occupied and more initialization are done.

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