/// <remarks/>
public void GetCustomerLetterHistoryAsync(GetCustomerLetterHistoryRequest GetCustomerLetterHistoryRequest, object userState) {
if ((this.GetCustomerLetterHistoryOperationCompleted == null)) {
this.GetCustomerLetterHistoryOperationCompleted = new System.Threading.SendOrPostCallback(this.OnGetCustomerLetterHistoryOperationCompleted);
}
this.InvokeAsync("GetCustomerLetterHistory", new object[] {
GetCustomerLetterHistoryRequest}, this.GetCustomerLetterHistoryOperationCompleted, userState);
}
/// <remarks/>
public void GetCustomerLetterHistoryAsync(GetCustomerLetterHistoryRequest GetCustomerLetterHistoryRequest) {
this.GetCustomerLetterHistoryAsync(GetCustomerLetterHistoryRequest, null);
}
