<GridItem xs={12} sm={12} md={12}>
                      <TextField
                        id="sp_Inhouse"
                        label="Number of Pilots Available "
                        type="number"
                        fullWidth
                        className={classes.textField}
                        value={this.state.sp_Inhousecount}
                        error={!!this.state.sp_InhouseError}
                        helperText={this.state.sp_InhouseError}
                        onChange={this.handleChangeInhouse}
                        margin="normal"
                        required
                      />
                    </GridItem>

<GridItem xs={12} sm={12} md={12}>
                       <Button color="primary" onClick={this.handleCreatePilots}>
                      <AddIcon />  Add Pilots
                      </Button>
                      {this.state.inhouse.map((index) => {
                        return (
                          <div key={index}>
                          <TextField
                            id="sp_Name"

                            label="Name "
                            type="number"
                            fullWidth
                          />
 <TextField
                            id="sp_Mobile"

                            label="Name "
                            type="number"
                            fullWidth
                          />
                          </div>
                        )
                      })
                      }
                    </GridItem>

handleCreatePilots=()=>{
    this.setState({
      inhouse:[...this.state.inhouse,'']
    })
  }