public static string GetStringParameter(StateBag viewState, string fieldName, string defaultValue)
{
string returnValue = WebFormsHelper.GetStringViewState(viewState, fieldName);
if (string.IsNullOrEmpty(returnValue))
{
returnValue = defaultValue;
}
return(returnValue);
}
public static string GetRequiredStringViewState(StateBag viewState, string fieldName)
{
string returnValue = WebFormsHelper.GetStringViewState(viewState, fieldName);
if (string.IsNullOrEmpty(returnValue))
{
throw new Exception(string.Format("Missing required ViewState string value \"{0}\"", fieldName));
}
return(returnValue);
}
protected string GetStringViewState(string fieldName)
{
return(WebFormsHelper.GetStringViewState(this.ViewState, fieldName));
}