As a result of their adaptability, the functional integrodifferential equations can be utilized in a wide variety of research and engineering subspecialties. In this paper, we study a class of functional integrodifferential equations with state-dependent delay in Banach spaces. We begin by investigating the global existence of mild solutions for this class of functional integrodifferential equations in Banach spaces. These equations have a state-dependent delay. The linear component of these equations is dependent on time and generates a linear evolution system. Using the resolvent operator theory in the sense of Grimmer's fixed point technique, a new set of sufficient conditions is formulated and proven for the global existence of mild solutions for the functional integrodifferential equation with state-dependent delay. In the next part of this investigation, we are going to look into the attractivity of mild solutions for functional integrodifferential equations with state-dependent delay. An example is given in order to illustrate the theory that was obtained. Some well-known results are generalized and extended.