WCF服务用户名密码访问

private void BtnSearch_Click(object sender, EventArgs e)
{
try
{
var client = new TicketListService.TicketListServicePortTypeClient();
client.ClientCredentials.UserName.UserName = ConfigurationManager.AppSettings["UserName"];
client.ClientCredentials.UserName.Password = ConfigurationManager.AppSettings["Password"];

if (!string.IsNullOrEmpty(txtParam.Text.Trim()))
{
string paramjson = txtParam.Text.Trim();
string datajson = client.queryTicketAllList(paramjson);
richTextBox1.Text = ConvertJsonString(datajson);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
</startup>
<appSettings>
<add key="UserName" value="admin"/>
<add key="Password" value="123"/>
</appSettings>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="ITicketListServiceHttpBinding" >
<security mode="TransportCredentialOnly" >
<transport clientCredentialType="Basic"/>
<message clientCredentialType="UserName"/>
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://10.8.0.126/dxp/remote/execut"
binding="basicHttpBinding" bindingConfiguration="ITicketListServiceHttpBinding"
contract="TicketListService.ITicketListServicePortType" name="ITicketListServiceHttpPort" />
</client>
</system.serviceModel>
</configuration>