本文整理汇总了C#中System.Web.Security.RoleProvider.IsUserInRole方法的典型用法代码示例。如果您正苦于以下问题：C# RoleProvider.IsUserInRole方法的具体用法？C# RoleProvider.IsUserInRole怎么用？C# RoleProvider.IsUserInRole使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。
在下文中一共展示了RoleProvider.IsUserInRole方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: IsUserInRole
public override bool IsUserInRole(string username, string rolename)
{
if (username == null || username == "")
throw new ProviderException("User name cannot be empty or null.");
if (rolename == null || rolename == "")
throw new ProviderException("Role name cannot be empty or null.");
bool userIsInRole = false;
OdbcConnection conn = new OdbcConnection(connectionString);
OdbcCommand cmd = new OdbcCommand("SELECT COUNT(*) FROM UsersInRoles " +
" WHERE Username = ? AND Rolename = ? AND ApplicationName = ?", conn);
cmd.Parameters.Add("@Username", OdbcType.VarChar, 255).Value = username;
cmd.Parameters.Add("@Rolename", OdbcType.VarChar, 255).Value = rolename;
cmd.Parameters.Add("@ApplicationName", OdbcType.VarChar, 255).Value = ApplicationName;
try
{
conn.Open();
int numRecs = (int)cmd.ExecuteScalar();
if (numRecs > 0)
{
userIsInRole = true;
}
}
catch (OdbcException)
{
// Handle exception.
}
finally
{
conn.Close();
}
return userIsInRole;
}