checkusername.aspx.cs

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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;
using System.Drawing;

public partial class Src_CommonOperation_Check_CheckUserName : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string userName = Request.QueryString["UserName"].ToString();
            if (userName != null)
            {
                TextBoxUserName.Text = userName;
                init(userName);
            }
        }
    }
    protected string message;
    private void init(string userName)
    {
        if (CommonService.isExistUser(userName))
        {
            LabelMessage.Text = "该用户名已经注册";
            LabelMessage.ForeColor = Color.Red;
            LabelStatus.Text = "失败!";
            LabelStatus.ForeColor = Color.Red;
            message = "用户名注册->失败!";
        }
        else
        {
            LabelMessage.Text = "该用户名可以注册";
            LabelMessage.ForeColor = Color.Green;
            LabelStatus.Text = "成功!";
            LabelStatus.ForeColor = Color.Green;
            message = "用户名注册->成功!";
        }
    }
    protected void ButtonSubmit_Click(object sender, EventArgs e)
    {
        init(TextBoxUserName.Text);
    }
}